DC/DC switching regulators

___Power Management > DC/DC switching regulators___

___Part No.___ ______ (勾選方式)	___Features___	___Function___ ______ (勾選方式)	___Synchronous___ ______ (勾選方式)	Vcc(MIN)(V) (Range)	Vcc(MAX)(V) (Range)	Iout(A) (Range)	VFB(V) (Range)	η(％) (Range)	Freq. (TYP) (HZ) (Range)	IQ(MAX)(mA) (Range)	___ISTBY___ ___(MAX)(uA)___	___Package___ ______ (勾選方式)
___P3586___	___3.0A 1.2MHz , PWM Step-down Switching Regulator___ ______ ___* 10μA Shutdown Supply Current___ ___* Frequency fold back at Short Circuit___ ___* Protection Circuits: UVLO, Thermal Shutdown, OCP___ ___*Low ESR Output Capacitor Application.___	___* Buck___	___X___	3.6	20	3	0.8	92%	1.2M	5	___10___	___SOP-8___
___P1596___	___1.5A 150KHz, PWM Step-down Switching Regulator___ ______ ___* Voltage mode non-synchronous PWM control___ ___* Thermal-shutdown and current-limit protection___ ___* Low power standby mode___ ___* Internal current and thermal limit___ ___* Built-in switching transistor on chip___ ___* Vout 1.23V(Adj) & 2.5V,3.3V, 5.0V,12.0V(Fixed)___	___* Buck___	___X___	4.5	22	1.5	1.23	80%	150K	10	___150___	___TO-220B___ ___TO-220-5___ ___TO-263-5___ ___HSOP-8___
___P1785___	___2.0A 300KHz, PWM Step-down Switching Regulator with Internal OCSET___ ______ ___* Soft-start, Current Limit, Enable function___ ___* Thermal Shutdown function___ ___* Built-in internal SW P-channel MOS___ ___* Duty ratio: 0% to 100% PWM control___	___* Buck___	___X___	3.6	23	2	0.8	91%	300K	-	___10___	___SOP-8___
___P1885___	___2.0A 300KHz, PWM Step-down Switching Regulator___ ______ ___* Soft-start, Current Limit, Enable function___ ___* Thermal Shutdown function___ ___* Built-in internal SW P-channel MOS___ ___* Duty ratio: 0% to 100% PWM control___	___* Buck___	___X___	3.6	23	2	0.8	91%	300K	-	___10___	___SOP-8___ ___HSOP-8___
___P1786___	___3,0A 300KHz, PWM Step-down Switching Regulator with external OCSET___ ______ ___* Duty ratio: 0% to 100% PWM control___ ___* Soft-start, current limit, enable function___ ___* Thermal shutdown function___ ___* Built-in internal SW P-channel MOS___	___* Buck___	___X___	4	23	3	0.8	91%	300K	-	___10___	___SOP-8___
___P1886___	___3,0A 300KHz, PWM Step-down Switching Regulator___ ___Internal Frequency Compensation With Fewer Component Count___ ______ ___* Soft-start, Current Limit, Enable function___ ___* Thermal Shutdown function___ ___* Built-in internal SW P-channel MOS___ ___* Duty ratio: 0% to 100% PWM control___	___* Buck___	___X___	4	23	3	0.8	88%	300K	-	___10___	___SOP-8___ ___HSOP-8___
___P1888___	___3,0A 300KHz, PWM Step-down Switching Regulator___ ______ ___* Soft-start, Current Limit, Enable function___ ___* Thermal Shutdown function___ ___* Built-in internal SW P-channel MOS___ ___* Duty ratio: 0% to 100% PWM control___	___* Buck___	___X___	4	23	3	1.23	88%	300K	-	___10___	___SOP-8___
___UD24121___	___1.4MHz, 1.2A STEP-DOWN CONVERTER___ ______ ___* 0.35Ω Internal Power MOSFET Switch___ ___* Stable with Low ESR Output Ceramic Capacitors___ ___* Up to 92% Efficiency___ ___* 0.1μA Shutdown Mode___ ___* Thermal Shutdown___ ___* Cycle-by-Cycle Over Current Protection___	___* Buck___	___X___	4.5	24	1.2	0.81	92%	1.4M	0.8	___3___	___SOT-26___
___P1595___	___1.5A 200KHz, PWM Step-down Switching Regulator___ ______ ___* Output Voltage In Adjustable Output Version.___ ___* Short Circuit Protect___ ___* On/Off Shutdown Control Input.___ ___* Voltage Mode Non-Synchronous Pulse Width Modulation (PWM) Control.___	___* Buck___	___X___	4.5	24	1.5	0.75	-	200K	8	___10___	___SOT-89-5___
___P1696___	___2.0A 200KHz, PWM Step-down Switching Regulator___ ______ ___Low power standby mode___ ___Internal OCP and OTP___ ___*Vout=1.23V(Adj),2.5V,3.3V,5.0V,12.0V(Fixed)___	___* Buck___	___X___	4.5	24	2	1.23	-	200K	10	___200___	___SOP-8___ ___HSOP-8___
___P1583___	___2.5A 380KHz, PWM Step-down Switching Regulator___ ______ ___* Frequency foldback at short circuit___ ___* Thermal shutdown___ ___* Under voltage lock output___ ___* Current mode with low ESR output ceramic capacitors___ ___* Up to 90% efficiency___	___* Buck___	___X___	-	24	2.5	1.245	95%	380K	2	___36___	___HSOP-8___
___P1580___	___2.5A 380KHz, PWM Step-down Switching Regulator___ ______ ___* Frequency Feedback at Short Circuit___ ___* Thermal Shutdown___ ___* Under Voltage Lock Output___ ___* Current Mode With Low ESR Output Ceramic Capacitors___ ___* Up to 90% Efficiency___	___* Buck___	___X___	3.5	2.8	2.5	1.222	90%	380K	1.7	___-___	___HSOP-8___
___P1986___	___3.0A 330KHz, PWM Step-down Switching Regulator___ ___Built-In Soft Start With Fewer Component Count___ ______ ___* Duty ratio varies from 0% to 100% PWM control___ ___* Built-in switch P-channel power MOS___ ___* Halogen Free___	___* Buck___	___X___	3.6	28	3	0.8	-	330K	5	___10___	___SOP-8___
___P2583___	___3.0A 380KHz, PWM Step-down Switching Regulator___ ______ ___* Frequency FoldBack at Short Circuit___ ___* Thermal Shutdown___ ___* Under Voltage Lock Output___ ___* Current Mode with Low ESR Output Ceramic Capacitors___ ___* Up to 90% Efficiency___	___* Buck___	___X___	3.6	28	3	1.222	90%	380K	3.5	___-___	___SOP-8___
___UC34363___	___2.0A 75KHz, PWM Switching Regulator___ ______ ___* CV/CC linear charge___ ___* PWM control Mode___ ___* Available charge current___ ___* Over Voltage protect ,Over Current Protect___ ___* Enable Control function___ ___* Very Low Power Dissipation in Standby Mode___	___* Buck___	___X___	8	30	2	3	-	75K	-	___15000___	___SOP-8___
___P3596___	___3.0A 150KHz, PWM Step-down Switching Regulator___ ______ ___Low power standby mode___ ___High efficiency___ ___Internal current and thermal limit___ ___Vout=1.23V(Adj), 2.5V,3.3V,5.0V,12.0V(Fixed)___	___* Buck___	___X___	4.5	35	3	1.23	90%	150K	10	___200___	___TO-220-5___ ___TO-220B___ ___TO-263-5___
___P3596Q___	___3.0A 150KHz, PWM Step-down Switching Regulator___ ______ ___Low power standby mode___ ___High efficiency___ ___Internal current and thermal limit___ ___Vout=1.23V(Adj), 5.0V,12.0V(Fixed)___	___* Buck___	___X___	4.5	35	3	1.23	90%	150K	10	___200___	___TO-220-5___ ___TO-220B___ ___TO-263-5___
___UD36061___	___2MHz, 0.6A STEP-DOWN CONVERTER___ ______ ___* > 90% Efficiency___ ___* Internally Compensated___ ___* Internal Soft-Start___ ___* Precision Current Limit Without Current Sensing Resistor___ ___* 3μA Low Shutdown Supply Current___	___* Buck___	___X___	3.6	36	0.6	0.794	90%	2M	0.130	___-___	___SOT-26___
___UC34463___	___2.0A 200KHz, PWM Buck Switching Regulator___ ______ ___* Voltage mode non-synchronous PWM control___ ___* Thermal-shutdown and current-limit protection___ ___* ON/OFF shutdown control input___ ___* Low power standby mode___ ___* Built-in switching transistor on chip___	___* Buck___	___X___	-	40	2	-	-	200K	10	___200___	___SOP-8___ ___HSOP-8___
___P3576B___	___2.0A 150KHz, PWM Step-down Switching Regulator___ ______ ___* Low power standby mode___ ___* Internal current and thermal limit___ ___* Built-in Switching Transistor On Chip.___	___* Buck___	___X___	4.5	40	2	5	80%	150K	8	___200___	___TO-252-5___
___LD1596___	___2.0A 150kHz, 40V Buck DC/DC Converter With Constant Current Loop___ ______ ___* Minimum Drop Out 1.5V___ ___* Internal Optimize Power Transistor___ ___* Excellent line and load regulation___ ___* TTL shutdown capability___ ___* ON/OFF pin with hysteresis function___	___* Buck___	___X___	4.5	40	2	1.235	81%	150K	5	___200___	___SOP-8___ ___HSOP-8___
___P2576_A_HV___	___* Very High Efficiency___ ___* TTL Shutdown___ ___* Low Power Standby Mode___ ___* Thermal Shutdown___ ___* Current Limit Protection___ ___* Internal Oscillator: 52 kHz Fixed Frequency___ ___* Vout=3.3V、5V、12V、15V、ADJ=1.23V___	___* Buck___	___X___	7	60	3	1.23	88%	52K	10	___200___	___TO-220B___ ___TO-220-5___ ___TO-263-5___ ___SOP-8___ ___HSOP-8___
___UMC33167___	___5.0A 72kHz, STEP-UP/DOWN/INVERTING SWITCHING REGULATORS___ ______ ___* Precision 2% Reference___ ___* 0% ~ 95% Output Duty Cycle___ ___* Cycle-by-Cycle Current Limiting___ ___* Undervoltage Lockout with Hysteresis___ ___* Internal Thermal Shutdown___	___* Buck___ ___* Boost___ ___* Inverting___	___X___	7.5	40	5	5.05	-	72K	-	___100___	___TO220-5___ ___TO-220B___
___P4596___	___3.0A 200KHz, PWM Control Step-Down Converter___ ______ ___* Duty ratio：0%~100% PWM control___ ___* Enable with Soft-Start function___ ___* Oscillation frequency can be set by outside resistance___ ___* Current Limit, SCP and OTP___	___* Buck___	___X___	8	40	3	0.815	-	200K	6	___360___	___HSOP-8___
___P34563___	___PWM CONTROL 3A STEP-DOWN CONVERTER___ ______ ___* Oscillation frequency: 100KHz___ ___* Duty ratio: 0%~100% PWM control___ ___* Enable and auto restart function.___ ___* Short Circuit Protect (SCP).___ ___* Thermal Shutdown function / Internal OVP.___ ___* Built-in internal SW P-channel MOS.___	___* Buck___	___X___	8	40	3	1.10	-	100K	7	___-___	___HSOP-8___
___P1690___	___0.4A 150KHz, PWM Step-down Switching Regulator___ ______ ___* High efficiency up to 85%___ ___* Maximum Duty Cycle 100%___ ___* Built in OTP、SCP、OCP___	___* Buck___	___X___	5	65	0.4	1.25	88%	150K	5	___200___	___SOP-8___
___UC34163___	___DC TO DC CONVERTER CONTROLLER___ ______ ___* Low standby current.___ ___* Frequency of operation from 100Hz ~ 100kHz.___ ___* Step-down switch regulators.___	___* Buck___	___X___	-	35	1.5	-	-	100K	-	___-___	___DIP-8___ ___SOP-8___
___UC3666___	___1.6MHz, Dual Channel 1A High Efficiency Step-Down DC/DC Converter___ ______ ___* Current mode operation___ ___* Fixed frequency operation___ ___* Over-temperature protection circuit___ ___* RoHS Compliant (100% green available)___	___* Buck___	___V___	2.5	5.5	1	0.6	90%	1.6M	-	___-___	___DFN3030-10___
___UC3656___	___1.6MHz, 1.0A High Efficiency Step-Down DC/DC Converter___ ______ ___* Schottky Diode is Saved___ ___* Internal ON/OFF___ ___* 100% Duty Cycle Allows Low Dropout Operation___ ___* Stand-by Current: 1μA (Max.)___	___* Buck___	___X___	2.5	5.5	1	0.6	90%	1.6M	0.3	___1___	___SOT-25___
___UD05103___	___1.5MHz/1MHz, 1A HIGH-EFFICIENCY SYNCHRONOUS STEP-DOWN CONVERTER___ ______ ___* Shutdown Current < 1μA___ ___* 100% Duty Cycle Operation___ ___* Current Mode Operation___ ___* Internal Soft-Start.___ ___* Current Limit Protection___ ___* Over-temperature Protection.___ ___* Input Under Voltage Lockout (UVLO)___	___* Buck___	___V___	3	5.5	1	0.6	95%	1.5M	0.6	___-___	___SOT-25___
___UD05122___	___* Quiescent Current: 200uA (input < 4.2V)___ ___* No Schottky Diode Required___ ___* 100% Duty Cycle in Dropout___ ___* 0.6V Reference Allows Low Output Voltages___ ___* Current Mode Operation for Excellent Line and Load Transient___ ___Response___ ___* Current limit, Enable function___ ___* Short Circuit Protect (SCP)___ ___* ≤1μA Shutdown Current___	___* Buck___	___V___	2.5	5.5	1.2	0.6	92%	1.4M	0.4	___-___	___SOT-25___
___UD05151___	___* Shutdown Current < 1μA___ ___* 100% Duty Cycle Operation___ ___* Current Mode Operation___ ___* Internal Soft-Start___ ___* Current Limit Protection___ ___* Over-temperature Protection___ ___* Input Under Voltage Lockout (UVLO)___	___* Buck___	___V___	3	5.5	1.5	0.6	90%	1.5M	0.08	___-___	___SOT-25___
___UD05154___	___* 2.7V to 5.5V Input Voltage Range___ ___* Adaptive On-Time Current Control___ ___* Power Save Mode for Light Load Efficiency___ ___* 50μA Operating Quiescent Current___ ___* Over Current Protection___ ___* Internal Soft Startup of 300μs (Typ.)___ ___* Adjustable Output Voltage___ ___* Thermal Shutdown Protection___	___* Buck___	___V___	2.7	5.5	1.5	0.6	-	1.5M	0.05	___-___	___SOT-25___
___UD16203___	___2A, 16V SYNCHRONOUS FAST RESPONSE BUCK CONVERTER___ ______ ___* 130/100mΩ Internal Power MOSFET Switch___ ___* PWM Architecture to Achieve Fast Transient Response___ ___* Build-in soft start function___ ___* 1.2MHz Switching Frequency___ ___* Thermal Shutdown Protection___	___* Buck___	___V___	4.5	16	2	0.6	-	1.2M	-	___-___	___SOT-26___
___UD05158___	___1.5MHz, 1.5A LOW NIOSE SYNCHRONOUS STEP-DOWN CONVERTER___ ______ ___* Shutdown Current < 1μA___ ___* 100% Duty Cycle Operation___ ___* Current Mode Operation___ ___* Internal Soft-Start.___ ___* Current Limit Protection___ ___* Over-temperature Protection.___ ___* Input Under Voltage Lockout (UVLO)___	___* Buck___	___V___	2.7	5.5	1.5	0.6	95%	1.5M	-	___-___	___DFN2020-6___
___UD05201___	___1.2MHz, 2A SYNCHRONOUS STEP-DOWN CONVERTER___ ______ ___* High Efficiency: Up to 96%___ ___* Low RDS(ON) Internal Switches: 0.15Ω___ ___* Current limit, Enable function___ ___* Short Circuit Protect (SCP)___ ___* Build-in Soft Start function___ ___* ≤ 1μA Shutdown Current___	___* Buck___	___V___	2.6	5.5	2	0.6	96%	1.2M	0.4	___-___	___SOP-8___ ___HSOP-8___
___UD05202___	___1MHz, 2A SYNCHRONOUS STEP-DOWN CONVERTER___ ______ ___* Low RDS(ON) for internal switches (top/bottom) 180mΩ/120mΩ___ ___* Internal soft-start limits the inrush current___ ___* 100% dropout operation___	___* Buck___	___V___	3	5.5	2	0.6	-	1M	0.08	___-___	___HSOP-8___
___UD05203___	___1MHz, 2A SYNCHRONOUS STEP DOWN REGULATOR___ ______ ___* Low RDS(ON) for internal switches (top/bottom) 130mΩ/100mΩ___ ___* Internal softstart limits the inrush current___ ___* 100% dropout operation___	___* Buck___	___V___	3	5.5	2	0.6	-	1M	0.08	___-___	___HSOP-8___
___UD16501___	___* 70mΩ / 25mΩ Low Rds(on) Internal Power MOSFETs___ ___* Low Quiescent Current___ ___* High Efficiency Synchronous Mode Operation___ ___* Frequency Sync from 200kHz to 2MHz External Clock___ ___* AAM Power Save Mode___ ___* Internal Soft Start___ ___* OCP Protection and Hiccup___ ___* Thermal Shutdown___ ___* Output Adjustable from 0.8V___	___* Buck___	___V___	4.5	16	5	0.807	95%	500K	1	___1___	___HSOP-8___
___UD05206___	___1.5MHz, 2A SYNCHRONOUS STEP DOWN REGULATOR___ ______ ___* Shutdown Current < 1μA___ ___* 100% Duty Cycle Operation___ ___* Current Mode Operation___ ___* Internal Soft-Start___ ___* Current Limit Protection___ ___* Over-temperature Protection___ ___* Input Under Voltage Lockout (UVLO)___	___* Buck___	___V___	2.5	5.5	2	0.6	-	1.5M	0.128	___-___	___HSOP-8___
___UD05208___	___* Adaptive On-Time Current Control___ ___* Power Save Mode for Light Load Efficiency___ ___* 50μA Operating Quiescent Current___ ___* Over Current Protection___ ___* Internal Soft Startup of 250μs (Typ.)___ ___* Adjustable Output Voltage___ ___* Thermal Shutdown Protection___ ___* Available in SOT25 Package___	___* Buck___	___V___	2.7	5.5	2	0.6	-	1.5M	0.05	___-___	___SOT-25___
___UD05209___	___1.5MHz, 2A, VFB=0.6V SYNCHRONOUS STEP-DOWN CONVERTER___ ___* 2.7V to 5.5V Input Voltage Range___ ___* 1.5MHz Typical Switching Frequency___ ___* Output Current up to 2A___ ___* Adaptive On-Time Current Control___ ___* Over Current Protection___ ___* Internal Soft Startup of 250μs (Typ.)___ ___* Adjustable Output Voltage___ ___* Thermal Shutdown Protection___	___* Buck___	___V___	2.7	5.5	2	0.6	-	1.5M	0.7	___-___	___SOT-25___
___UD05251___	___1.2MHz, 2.5A SYNCHRONOUS STEP DOWN REGULATOR___ ______ ___* High Efficiency: Up to 94%___ ___* Current limit, Enable function___ ___* Short Circuit Protect (SCP)___ ___* Build-in Soft Start function___ ___* ≤1μA Shutdown Current___	___* Buck___	___V___	2.6	5.5	2.5	0.6	94%	1.2M	0.4	___-___	___HSOP-8___ ___DFN3030-8___
___UD05302___	___1MHz, DUAL 3A SYNCHRONOUS STEP DOWN REGULATOR___ ______ ___* Low RDS(ON) for internal switches (top/bottom) 110mΩ/80mΩ___ ___* Internal softstart limits the inrush current___ ___* 100% dropout operation___	___* Buck___	___V___	3	5.5	3	0.6	-	1M	0.08	___-___	___HSOP-8___
___UD05303___	___1MHz, 3A HIGH EFFICIENCY synchronous step-down DC-DC regulator___ ______ ___* Low RDS(ON) for internal switches (top/bottom) 100mΩ/70mΩ___ ___* Internal softstart limits the inrush current___ ___* Output power good indicator___ ___* RoHS compliant and halogen free___	___* Buck___	___V___	3	5.5	3	0.6	-	1M	-	___-___	___HSOP-8___
___UD05306___	___* High Efficiency: Up to 95%___ ___* Low Dropout Operation: 100% Duty Cycle___ ___* Programmable Frequency: 300kHz~2MHz___ ___* No Schottky Diode Required___ ___* 0.8V Reference Allows Low Output Voltage___ ___* Low RDS (ON) Internal Switches: 110mW___ ___* Forced Continuous Mode Operation___	___* Buck___	___V___	2.8	5.5	2	0.8	95%	1M	-	___-___	___HSOP-8___ ___DFN3030-10___
___UC3655___	___1.3MHz 0.5A Synchronous Buck Converter___ ______ ___* Very High Efficiency 92%___ ___* Low Ripple Rejection Voltage 10mV___ ___* With PWM / PFM Automatic Switching Control___ ___* Maximum Duty Ratio is 100%___ ___* Ceramic Capacitor Available___	___* Buck___	___V___	2	6	0.5	-	90%	1.3M	-	___1___	___SOT-25___
___UC3206X___	___3MHz 0.6A Inductor Built-in Step-Down “micro DC/DC” Converters___ ______ ___* Maximum duty cycle: 100%___ ___* High efficiency : 92% (TYP.)___ ___* High speed soft-start circuit and Current limiter circuit built-in___ ___* CL high speed auto discharge___ ___* Low ESR ceramic capacitor compatible___	___* Buck___	___V___	2	6	0.6	-	92%	3M	0.06	___1___	___SOT-25___
___UD05104A___	___* +/-2% 0.6V Feedback Voltage Accuracy___ ___* 1MHz Switching Frequency___ ___* 100% Duty Cycle Operation___ ___* Built-in 170mΩ/150mΩ Power Switch___ ___* Cycle-by-Cycle Current Limit Protection___ ___* with Soft-start, OTP, Over-Load and Hiccup Mode Short Circuit___	___* Buck___	___V___	2.5	6	1	0.6	-	1M	0.04	___-___	___SOT-25___
___US3463___	___PRIMARY SIDE DC/DC___ ___CONTROLLER___	___* Buck___	___X___	-	30	-	3	-	180K	-	___-___	___SOP-8___
___USR1021___	___500KHz, 3.0A PWM Control Step-Down Converter___ ______ ___* Internal soft start___ ___* 1.5% initial output accuracy___ ___* Cycle-by-cycle current limit___ ___* Thermal shutdown___ ___* Short-circuit protection___	___* Buck___	___V___	6	18	3	0.8	-	500K	5	___10___	___SOP-8___
___UD18203___	___2A, 18V SYNCHRONOUS FAST RESPONSE BUCK CONVERTER___ ___* 4.5V~18V Input Voltage Range___ ___* Up to 2A Output Current___ ___* 140/130mΩ Internal Power MOSFET Switch___ ___* PWM Architecture to Achieve Fast Transient Response___ ___* Build-in soft start function___ ___* 500kHz Switching Frequency___ ___* Thermal Shutdown Protection___	___* Buck___	___V___	4.5	18	2	0.6	-	500K	0.65	___-___	___SOT-26___
___USR1051___	___400KHz, 3.0A PWM Control Step-Down Converter with Soft start___ ______ ___* Synchronous Buck___ ___* Cycle-by-cycle current limit___ ___* Pre-bias start-up___ ___* Thermal shutdown___ ___* Short-circuit protection___	___* Buck___	___V___	5	23	3	0.8	-	450K	5	___-___	___HSOP-8___
___P1482___	___365KHz, 2.0A Synchronous Rectified Step-Down Converter___ ______ ___* Integrated Power MOSFET Switches___ ___* Programmable Soft-Start___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___	___* Buck___	___V___	6	18	2	0.923	93%	365K	5	___-___	___SOP-8___
___P1482A___	___365KHz, 2.0A Synchronous Rectified Step-Down Converter___ ______ ___* Integrated Power MOSFET Switches___ ___* Programmable Soft-Start___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___	___* Buck___	___V___	6	18	2	0.923	93%	365K	5	___-___	___HSOP-8___
___P1484___	___365KHz, 3.0A Synchronous Rectified Step-Down Converter___ ______ ___* Integrated Power MOSFET Switches___ ___* Programmable Soft-Start___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___	___* Buck___	___V___	6	18	3	0.923	93%	365K	5	___-___	___SOP-8___
___P1484A___	___365KHz, 3.0A Synchronous Rectified Step-Down Converter___ ______ ___* Integrated Power MOSFET Switches___ ___* Programmable Soft-Start___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___	___* Buck___	___V___	6	18	3	0.923	93%	365K	5	___-___	___HSOP-8___
___P2680___	___2.0A 340kHz, Step Down Converter___ ______ ___* Output Adjustable___ ___* Frequency FoldBack at Short Circuit___ ___* VIN Under-voltage Lockout___ ___* Thermal Shutdown___ ___* OCP___ ___* Programmable Soft-Start___	___* Buck___	___V___	4	26	2	0.923	90%	340K	-	___-___	___HSOP-8___
___SR2803___	___330KHz, 3.0A Synchronous Buck Regulator.___ ______ ___* Duty ratio varies from 0% to 92% PWM control___ ___* Thermal shutdown and SCP function and soft-start, current limit, enable function___ ___* Low ESR output capacitor(Multi-layer chip capacitor) application___	___* Buck___	___V___	4	28	3	0.82	93%	330K	5	___10___	___SOP-8___
___UD36241___	___* CC/CV Mode Control___ ___* Adjustable Load Line Compensation___ ___* 200mΩ Internal Power MOSFET Switch___ ___* Current Mode Control___ ___* Fixed Frequency Operation : 100kHz___ ___* Programmable Output Current Limit___ ___* Lowe EMI signature___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under Voltage Lockout___ ___* with OTP___	___* Buck___	___X___	9	36	2.4	1	-	100K	4	___-___	___HSOP-8___
___UD05123___	___1.2A 2.25MHz constant frequency current mode PWM step-down converter___ ______ ___* High Efficiency: Up to 92%___ ___* 100% Duty Cycle in Dropout___ ___* Current limit, Enable function___ ___* Short Circuit Protect (SCP)___ ___* ≤1μA Shutdown Current___	___* Buck___	___V___	2.5	5.5	1.2	0.6	0.92	2.25M	0.09	___-___	___SOT-25___
___UD32121___	___1.4MHz, 1.2A STEP-DOWN CONVERTER___ ______ ___* 0.35Ω Internal Power MOSFET Switch___ ___* Stable with Low ESR Output Ceramic Capacitors___ ___* Up to 92% Efficiency___ ___* 0.1μA Shutdown Mode___ ___* Thermal Shutdown___ ___* Cycle-by-Cycle Over Current Protection___	___* Buck___	___X___	4.5	32	1.2	0.81	0.92	1.4M	0.8	___-___	___SOT-26___
___UC3750___	___600kHz PWM /PFM Buck Controller___ ______ ___* Built-in soft-start (SS)___ ___* Automatic PWM/PFM switchover under light load condition___ ___* Internal under-voltage lockout (UVLO) protection___ ___* Low profile and minimum external components___	___* Buck___	___X___	2.45	5.5	-	-	0.92	600K	0.05	___-___	___SOT-25___
___UC4601_A___	___1MHz PWM Step-down DC-DC Controller___ ______ ___* Internal soft-start and protection function___ ___* High efficiency up to 90% (TYP.)___ ___* Standly current: 0.1μA (TYP.)___ ___* CMOS output capability___	___* Buck___	___X___	2.3	15	-	1	0.9	500K 1M	0.08	___-___	___SOT-25___
___M7085___	___1MHz PFM STEP-DOWN Controller___ ______ ___* High efficiency 90% and up is possible___ ___* Low dropout operation：100% duty cycle___ ___* Two methods of over-current protection___	___* Buck___	___X___	4.5	35	-	1.24	0.9	1M	0.5	___-___	___MSOP-8___
___USR1101___	___5V/12V Synchronous Buck PWM DC-DC Controller___ ______ ___* Drives all low cost N-channel MOSFETs___ ___* PWM control mode___ ___* Internal soft-start___ ___* RoHS compliant and 100% lead (Pb)-free___	___* Buck___	___V___	-	16	-	0.8	-	300K	15	___-___	___SOP-8___
___UCC2105___	___* 8V~24V Input Voltage Range___ ___* CC/CV Mode Control___ ___* Fixed 100KHz Operating Frequency___ ___* Soft Start Function for Start-up___ ___* Fold back Short-Circuit Protection___ ___* High Efficiency Operation___ ___* Output Over-Voltage Protection___ ___* Over Temperature Protection___	___* Buck___	___X___	8	24	2	1.18	-	100K	10	___-___	___SOP-8___
___UC3535___	___Step-Down DC-DC Converter and Controller___	___* Buck___	___X___	8	20	-	1.2	-	75K	-	___-___	___SOP-16___
___MC3063___	___* MAX. 40V Input___ ___* MAX. load to 1.5A___ ___* Output Voltage Adjustable___ ___* Frequency Operation of 150kHz___ ___* Precision 1.5% Reference___	___* Buck___ ___* Boost___ ___* Inverting___	___X___	-	40	1.5	1.25	-	150K	-	___-___	___SOP-8___
___3563___	___High-Efficiency DC-DC Converter___ ______ ___* Bootstrapped driver.___ ___* High side current sense capability.___ ___* High efficiency (up to 90%)___ ___* Internal 2% reference.___ ___* Frequency operation from 100Hz to 100KHz___	___* Buck___ ___* Boost___ ___* Inverting___	___X___	3	30	1.5	1.25	0.9	-	-	___-___	___DIP-8___ ___SOP-8___
___MC34063A___	___Variable Frequency DC-DC Converter Controller IC___ ___for Step-Up or Step-Down Voltage Converter___ ______ ___* Current Limiting.___ ___* Low standby current.___ ___* Frequency of operation from 100Hz to 100kHz.___ ___* Step-up, step-down or inverting switch regulators.___	___* Buck___ ___* Boost___ ___* Inverting___	___X___	3	40	-	1.25	-	100K	-	___-___	___DIP-8___ ___SOP-8___ ___TSSOP-8___
___UC33063A___	___DC TO DC CONVERTER CONTROLLER___ ______ ___* Current Limiting.___ ___* Low Standby Current.___ ___* Frequency of Operation from 100Hz to 100kHz.___ ___* Step-up, Step-down or Inverting Switch Regulators.___	___* Buck___ ___* Boost___ ___* Inverting___	___X___	3	40	-	1.25	-	100K	-	___-___	___DIP-8___ ___SOP-8___
___UC8383___	___165KHz VFM Step-Up DC-DC Converters___ ______ ___* 0.8V Start-Up Voltage___ ___* Low Supply Current of Typical be 18u A___ ___* Wide Output Voltage Range of 2.5V~5.0V___ ___* Output Voltage Accuracy ±5%___ ___* Low Ripple and Low Noise___ ___* High Efficiency Up to 85%___ ___* Low Profile and Minimum External Components___ ___* Low Profile and Minimum External Components___	___* Boost___	___X___	0.8	5.5	0.1	-	0.85	165K	-	___-___	___SOT-89___
___UC3383___	___* Operating (Start-up) Voltage Range: 0.9V~10V___ ___* Highly Accurate: Set-up Voltage ±2.5%___ ___* Maximum Oscillator Frequency (Max Fosc1): 180kHz (±15%)___ ___* Variable Duty Ratio: 45%/75% (±5%)___ ___* Both Switching Transistor Built-in and External Types are Available___ ___* 5-Lead Package Offer Chip Enable or Independent VOUT Pin Option.___	___* Boost___	___X___	0.9	10	0.4	-	0.8	180K	0.008	___-___	___SOT-25___ ___SOT-89___
___UC2306___	___DC-DC Converters with Low-Battery Detector Active in Shutdown___ ______ ___In shutdown mode:10μA quiescent current.___ ___Low battery detector active___ ___*Only by one resistor: peak current is programmable.___	___* Boost___	___X___	1.5	8	0.3	-	0.85	-	0.2	___50___	___SOP-8___ ___DIP-8___
___UC3555___	___500mA PFM Synchronous Step-Up DC-DC Converters and Controller___ ______ ___* Low power PFM step-up DC/DC___ ___* internal synchronous rectifier___ ___* Low battery detection___ ___* Current limited protection___ ___* Current Anti-Drawback protection___	___* Boost___	___X___	1.6	4.5	0.5	1.243	0.95	-	0.16	___-___	___TSSOP-8___
___UC3551___	___450KHz ADVANCED PWM STEP-UP DC-DC CONVERTER___ ______ ___* Low Start-up Input Voltage is as Low as 1.0V___ ___* Efficiency up to 90%___ ___* Zero Shutdown Mode Supply Current___ ___* Both Internal and External Power Switches for Maximum Flexibility___	___* Boost___	___X___	2	6.5	0.3	1.25	0.9	450K	0.001	___75___	___SOT-26___
___UC3500___	___150KHz Max VFM Step-Up DC-DC Converters (VO=2.5V~5V)___ ______ ___* 0.8V start-up voltage___ ___* 0.5V hold-on voltage___ ___* Low supply current of 18μA___ ___* High efficiency up to 88%___ ___* Low profile and minimum external components___	___* Boost___	___X___	0.7	7	0.15	-	0.88	-	-	___18___	___SOT-25___ ___SOT-23___ ___SOT-89___
___P2172___	___100kHz, 1.25A High Efficiency Switching Regulators___ ______ ___* Very Few External Parts Required___ ___* Self-Protected Against Overloads___ ___* Operates in Nearly All Switching Topologies___ ___* Flyback-Regulated Mode Has Fully Floating Outputs___ ___* Can Be Externally Synchronized___	___* Boost___	___X___	3	60	-	1.244	0.8	100K	9	___-___	___DIP-8___ ___SOP-8___
___UC3380___	___PWM/PFM Step -Up Switching Regulator Controller(VO=1.8V~5.0V)___ ______ ___* 0.5uA Low Shutdown Current___ ___* Fix Frequency PWM at 300KHZ___ ___* Built in PWM Switching Control Circuit ,Duty Ratio is 0~78%___ ___* Soft Start Time: 3ms___ ___* Shutdown Function___	___* Boost___	___X___	0.9	10	-	-	0.85	300K	-	___-___	___SOT-25___
___UC3550___	___300KHz PWM Step-Up DC-DC Controller(VO=3.3V~5.0V)___ ______ ___* Output Voltage Range：1.8~6V Programmable in 0.1V with high accuracy ± 2.5%___ ___* High Efficiency 88% (Typ.)___ ___* Low Start-up Voltage of 0.9V Typical at IOUT = 1.0mA___ ___* Chip Enable Pin with Pull-up Current Source___	___* Boost___	___X___	0.9	8	-	-	0.88	300K	-	___38___	___SOT-25___
___UC3552___	___PWM DC-DC CONVERTER WITH INTERNAL SWITCH AND SOFT-START___ ______ ___* 1.6A, 0.23Ω, internal switch___ ___* High efficiency: 90%___ ___* Adjustable frequency: 640kHz or 1.3MHz___ ___* Low shutdown current: 0.1μA___ ___* Programmable soft-start___	___* Boost___	___X___	2.6	5.5	-	1.24	0.9	640K 1.3M	0.35	___5000___	___SOP-8___ ___HSOP-8___
___UC5301___	___260KHz Switched capacitor Inverter___ ______ ___* Operating voltage range: 1.8V ~ 5V___ ___* Inverts input supply voltage___ ___* 25mA output current with a voltage drop of 250mV___ ___* Quiescent current 0.45mA from supplis 3.3V___ ___* Voltage conversion efficiency up to 99%___ ___* Only two capacitors needed___ ___* Over-temperature circuit___ ___* 2KV ESD rating___	___* Inverting___	___X___	1.8	5	0.1	-	-	250K	0.5	___-___	___SOP-8___ ___SOT-26___
___UCP0510___	___450KHz REGULATED CHARGE PUMP___ ______ ___* Step-Up Voltage Converter___ ___* Input Voltage Range___ ___UCP0510-50: 2.7V to 5V___ ___UCP0510-45: 2.7V to 4.5V___ ___* Regulated 5V, 4.5V±4% Output___ ___* High Frequency 450 kHz operation___ ___* Short-Circuit/Over-Temperature Protection___	___* Inverting___	___X___	2.7	5	0.1	-	-	450K	0.1	___2.5___	___SOT-26___
___UD05121___	___1.5MHz, 1.2A Synchronous Step-Down Regulator___ ______ ___* Up to 95% Efficiency___ ___* Less than 1μA Shutdown Current___ ___* Thermal Shutdown Protection___ ___* Current limit and short circuit protections.___ ___* Build-in soft start function___	___* Buck___	___V___	2.5	5.5	1.2	0.6	95%	1.5M	0.35	___-___	___SOT-25___
___UD05124___	___* Low RDS(ON) for Internal Switch: 340/210 mΩ (Top/Bottom)___ ___* 1.5MHz Switching Frequency___ ___* Internal 1ms Soft-Start Time___ ___* Internal Compensation Function___ ___* 100% Dropout Operation___ ___* Input Over Voltage Protection___ ___* Over Current Protection___ ___* Short Circuit Protection___ ___* Over Temperature Protection with Auto Recovery___	___* Buck___	___V___	2.5	6	1.2	0.6	-	1.5M	0.05	___-___	___SOT-25___
___UD05205___	___1.5MHz, 2A SYNCHRONOUS BUCK CONVERTER___ ______ ___* 150/120mΩ Internal Power MOSFET Switch___ ___* Stable with Low ESR Output Ceramic Capacitors___ ___* Up to 95% Efficiency___ ___* Less than 1μA Shutdown Current___ ___* Thermal Shutdown Protection___ ___* Current limit and short circuit protections.___ ___* Build-in soft start function___	___* Buck___	___V___	2.5	5.5	2	0.6	95%	1.5M	0.35	___-___	___SOT-25___
___UD052012___	___* Low RDS(ON) for Internal Switch: 140/90 mΩ (Top/Bottom)___ ___* 1MHz Switching Frequency___ ___* Internal Soft-Start Limits the Inrush Current___ ___* Internal Compensation Function___ ___* 100% Dropout Operation___ ___* Input Over Voltage Protection___ ___* Over Current Protection___ ___* Short Circuit Protection___ ___* Over Temperature Protection with Auto Recovery___	___* Buck___	___V___	2.5	6	2	0.6	-	1M	0.04	___-___	___SOT-25___ ___SOT-26___
___UD05104___	___2.25MHz, 1A SYNCHRONOUS STEP-DOWN DC/DC CONVERTER___ ______ ___* 100% Duty Cycle Operation___ ___* Internal Soft-Start___ ___* Cycle-by-Cycle Current Limit Protection___ ___* Over-Load and Hiccup Mode Short Circuit___ ___* Thermal Shutdown Protection___	___* Buck___	___V___	2.5	6	1	0.6	-	2.25M	0.04	___-___	___SOT-25___
___UCC36351___	___160KHz, 3.5A SYNCHRONOUS BUCK CONVERTER WITH CC/CV___ ______ ___* Integrated 75/45mΩ Power MOSFET Switches___ ___* Up to 93% Efficiency___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under/Over Voltage Lockout___	___* Buck___	___V___	8	36	3.5	1	93%	160K	1.5	___-___	___HSOP-8___
___UCC36451___	___160KHz, 4.5A SYNCHRONOUS BUCK CONVERTER WITH 2CH CC/CV___ ______ ___* Integrated 75mΩ high side Power MOSFET Switches___ ___* Up to 95% Efficiency___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under/Over Voltage Lockout___	___* Buck___	___V___	8	36	4.5	1	95%	160K	2	___-___	___HSOP-8___
___UD38251___	___160KHz, 2.5A SYNCHRONOUS BUCK CONVERTER___ ______ ___* Integrated 140mΩ Power MOSFET Switches___ ___* Up to 93% Efficiency___ ___* Internal Soft-Start___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under/Over Voltage Lockout___	___* Buck___	___V___	8	38	2.5	1	93%	160K	1.5	___-___	___HSOP-8___
___UD38252___	___160KHz, 2.5A SYNCHRONOUS BUCK CONVERTER WITH CC/CV___ ______ ___* Integrated 140mΩ Power MOSFET Switches___ ___* Up to 92% Efficiency___ ___* Internal Soft-Start.___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under/Over Voltage Lockout___	___* Buck___	___V___	8	38	2.5	1	92%	160K	1.5	___-___	___HSOP-8___
___UD38501___	___160KHz, 5A SYNCHRONOUS BUCK CONVERTER___ ______ ___* Integrated 80mΩ high side Power MOSFET Switches___ ___* Up to 95% Efficiency___ ___* Internal Soft-Start___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under/Over Voltage Lockout___	___* Buck___	___V___	8	38	5	1	95%	160K	1.5	___-___	___HSOP-8___
___UCC40501___	___* Wide 8V to 40V Operating Input Range___ ___* Integrated 45mΩ high side Power MOSFET Switches___ ___* Output Adjustable from VFB (1.00V±2%) to 16V___ ___* Up to 95% Efficiency___ ___* Internal Soft-Start and Fixed 160KHz Frequency___ ___* Stable with Low ESR Ceramic Output Capacitors___ ___* Cycle-by-Cycle Over Current Protection___ ___* Input Under/Over Voltage Lockout___	___* Buck___	___V___	8	40	5	1	95%	160K	1.5	___-___	___HSOP-8___
___UCC40702___	___40V SYNCHRONOUS BUCK CONTROLLER WITH 2CH CC/CV___	___* Buck___	___V___	8	40	5	1	95%	160K	-	___-___	___MSOP-10___
___UD06122___	___1.2A 1.5MHz dual high-efficiency(PWM) step-down DC-DC converter___ ______ ___* Stable with Low ESR Output Ceramic Capacitors___ ___* Up to 95% Efficiency___ ___* Less than 1μA Shutdown Current___ ___* Thermal Shutdown Protection___ ___* Current limit and short circuit protections.___ ___* Build-in soft start function___	___* Buck___	___V___	2.5	6	1.2	0.6	0.95	1.5M	0.35	___-___	___DFN3030-10___
___UU28121___	___1.2MHz, 1.2A HIGH VOLTAGE,BOOST CONVERTER___ ______ ___* 2.5V~5.5V operating input voltage range___ ___* 1.2MHz Fixed Switching Frequency___ ___* Adjustable output voltage range up to 28V___ ___* Internal 1.2A switching current limit___ ___* Internal Soft-start Function___ ___* Current limit and Thermal shutdown protection___ ___* Under voltage Lockout___	___* Boost___	___X___	2.5	5.5	-	1.238	-	1.2M	0.25	___-___	___SOT-25___
___UU05052___	___* Low Startup Voltage of 1V___ ___* 17μA Of Quiescent Supply Current___ ___* Less Than 1μA Of Shutdown Current___ ___* Fully Integrated N-channel Power Switch and P-channel___ ___Synchronous Rectifier___ ___* Fixed 3.3V/5V or Adjustable Output Voltage___	___* Boost___	___V___	0.6	5	0.4~0.7	1.18	-	-	34	___-___	___SOT-25___
___UTL7660___	___CHARGE PUMP DC-DC___ ___VOLTAGE CONVERTER___ ______ ___* Converts +5V Logic supply to ±5V double-phase electrical Voltage___ ___* Wide input voltage range: 1.5V~10V___ ___* Efficient voltage conversion: 99.9%___ ___* Good power efficiency: 98%___ ___* Low power supply:50uA@5Vin___ ___* Only two external capacitors required___ ___* Compatible with RS232 negative power supply standard___ ___* No Dx diode needed for high voltage operation___	___* Inverting___	___x___	-	10.5	-	-	0.98	10K	0.1	___-___	___SOP-8___
___UTL7660H___	___CHARGE PUMP DC-DC___ ___VOLTAGE CONVERTER___ ______ ___* Converts +5V Logic supply to ±5V double-phase electrical Voltage___ ___** Wide input voltage range: 1.5V ~ 10V___ ___* * Efficient voltage conversion: 99.9%___ ___* * Good power efficiency: 98%___ ___* * Low power supply: 55μA @ 5 Vin___ ___* * Only two external capacitors required___ ___* * Compatible with RS232 negative power supply standard___ ___* * No Dx diode needed for high voltage operation___	___* Inverting___	___x___	-	10.5	-	-	0.98	20K	0.1	___-___	___SOP-8___
___MC34063A-U___	___Variable Frequency DC-DC Converter Controller IC___ ___for Step-Up or Step-Down Voltage Converter___ ______ ___* Current Limiting.___ ___* Low standby current.___ ___* Frequency of operation from 100Hz to 100kHz.___ ___* Step-up, step-down or inverting switch regulators.___	___* Buck___ ___* Boost___ ___* Inverting___	___X___	3	40	-	1.25	-	100K	-	___-___	___DIP-8___ ___SOP-8___ ___TSSOP-8___
___UD05153___	___* Input Voltage Range :2.5V~5.5V___ ___* Output Voltage: from 0.6V to VIN___ ___* High Efficiency: Up to 90%___ ___* Constant Frequency Operation: 1.5MHz___ ___* Output Current:1.5A___ ___* Quiescent Current: 300uA (input > 4.5V)___ ___* No Schottky Diode Required___ ___* 100% Duty Cycle in Dropout___ ___* 0.6V Reference Allows Low Output Voltages___ ___* COT Mode Operation for Excellent Line and Load___ ___Transient Response___ ___* Current limit, Enable function___ ___* Short Circuit Protect (SCP)___ ___* ≤ 2μA Shutdown Current___ ___* PG pin function for SOT-26 package___	___* Buck___	___V___	2.5	5.5	1.5	0.6	-	1.5M	0.3	___-___	___SOT-25___ ___SOT-26___
___UD052015___	___2A 1.5MHZ SYNCHRONOUS STEP DOWN CONVERTER___ ___* 2.5V to 5.5V Input Voltage Range___ ___* 2A Available Load Current___ ___* 1.5MHz Switching Frequency in CCM___ ___* Low RDSON for Internal Switches:___ ___High-side: 125mΩ___ ___Low-side: 95mΩ___ ___* Soft Start Time: 1ms___ ___* 65μA Typical Quiescent Current___ ___* Cycle-by-cycle Peak Current Limitation___ ___* Input Over-Voltage Protection___ ___* Input Under-Voltage Lockout___ ___* Output Under-Voltage Lockout___ ___* Short Circuit with Hiccup Mode___ ___* Fast Transient Responses___ ___* Optimized for Low-ESR Ceramic Output Capacitors___ ___* Over-temperature Protection___	___* Buck___	___V___	2.5	5.5	2	0.6	-	1500K	0.065	___0.1___	___SOT-23-5___
___UD05307___	___5V 3A 1MHZ SYNCHRONOUS STEP DOWN CONVERTER___ ___* 2.5V to 5.5V Input Voltage Range___ ___* 3A Available Load Current___ ___* 1MHz Switching Frequency in CCM___ ___* Low RDSON for Internal Switches:___ ___High-side: 65mΩ___ ___Low-side: 45mΩ___ ___* Soft Start Time: 1ms___ ___* 65μA Typical Quiescent Current___ ___* Soft Start Time: 1ms___ ___* Peak Current Mode Control___ ___* 100% Duty Cycle in Dropout___ ___* Input Under-Voltage Lockout___ ___* Input Over-Voltage Protection___ ___* Output Under-Voltage Lockout___ ___* Output Over-Voltage Protection___ ___* Power Good Output Function___ ___* Output Auto Discharge Function___ ___* Cycle-by-cycle Over Current Limit___ ___* Short Circuit with Hiccup Mode___ ___* Over-Temperature Protection___	___* Buck___	___V___	2.5	5.5	3	0.6	1000K	0.065	___0.1___	___SOT-23-6___
___UD05125___	___1.2A 1.5MHZ SYNCHRONOUS STEP DOWN CONVERTER___ ___* 2.5V to 5.5V Input Voltage Range___ ___* 1.2A Available Load Current___ ___* 1.5MHz Switching Frequency in CCM___ ___* Low RDS(ON) for Internal Switches:___ ___High-side: 200mΩ___ ___Low-side: 150mΩ___ ___* 65μA Typical Quiescent Current___ ___* Soft Start Time: 1ms___ ___* Current Mode Control for Excellent Transient Response___ ___* Cycle-by-cycle Peak Current Limitation___ ___* Input Under-Voltage Lockout___ ___* Input Over-Voltage Protection___ ___* Short Circuit with Hiccup Mode___ ___* Over-temperature protection___ ___* Compact Package: SOT23-5___	___* Buck___	___V___	2.5	5.5	1.2	0.6	-	1500K	0.065	___0.1___	___SOT-23-5___
___UD17301___	___* Wide 4.2V to 17V Operating Input Range___ ___* 63mΩ/36mΩ Low RDS(ON) Internal Power MOSFETs___ ___* 200µA Low IQ___ ___* High-Efficiency Synchronous Mode Operation___ ___* Forced PWM Operation Mode___ ___* Fast Load Transient Response___ ___* 1.2MHz Switching Frequency___ ___* Internal Soft Start (SS)___ ___* Over-Current Protection (OCP) and Hiccup___ ___* Thermal Shutdown___ ___* Output Adjustable from 0.8V___	___* Buck___	___V___	4.2	17	3	0.805	-	1.2M	0.25	___-___	___SOT563___
___UD18307___	___* 4.3V to 18V Input Voltage Range Supporting___ ___* 20V Absolute Maximum Rating___ ___* 3A Continuous Output Current___ ___* Output Adjustable from 0.8V___ ___105mΩ and 60mΩ Internal Power MOSFETs___ ___ 110μA Low Quiescent Current___ ___* 1.1MHz Switching Frequency___ ___* High-Efficiency Synchronous Mode Operation___ ___* Internal Soft Start (SS)___ ___* Over-Current Protection (OCP) and Hiccup___ ___* Power-Save Mode (PSM) at Light Load___ ___* Thermal Shutdown Protection___	___* Buck___	___V___	4.3	18	3	0.796	-	1.1M	0.11	___-___	___SOT563___
___UD18306___	___* 4.5V to 18V Input Voltage Range___ ___* Low RDSON for Internal Switches:___ ___High-side:100mΩ___ ___Low-side:50mΩ___ ___* 580kHz Constant Switching Frequency___ ___* 3A Available Load Current___ ___* Soft Start time: 1.5ms___ ___* Cycle-by-cycle Valley Current Limitation___ ___* Input Under-Voltage Lockout___ ___* Short Circuit with Hiccup Mode___ ___* Advanced Constant On-Time Control___ ___* Fast Transient Responses___ ___* Optimized for Low-ESR Ceramic Output Capacitors___ ___* Thermal Shutdown with Recovery___	___* Buck___	___V___	4.5	18	3	0.6	-	580K	0.28	___-___	___SOT23-6___
___UD182013___	___* 4.5V to 18V Input Voltage Range___ ___* Low RDSON for Internal Switches:___ ___High-side:130mΩ___ ___Low-side:70mΩ___ ___* 580kHz Constant Switching Frequency___ ___* 2A Available Load Current___ ___* Soft Start time: 1.5ms___ ___* Cycle-by-cycle Valley Current Limitation___ ___* Input Under-Voltage Lockout___ ___* Short Circuit with Hiccup Mode___ ___* Advanced Constant On-Time Control___ ___* Fast Transient Responses___ ___* Optimized for Low-ESR Ceramic Output Capacitors___ ___* Thermal Shutdown with Recovery___	___* Buck___	___V___	4.5	18	2	0.6	-	580K	0.28	___-___	___SOT23-6___
___UD30600___	___* Wide 3.6V to 30V Input Range___ ___* Support 6A Continuous Output Current___ ___* 500kHz/1.1MHz Switching Frequency Selectable___ ___* Low RDS(ON) for Internal Switches:___ ___High-side:32mΩ___ ___Low-side: 20mΩ___ ___* PFM and FPWM Mode Selectable___ ___* Constant On Time Control for Fast Loop Response l___ ___* Support Up to 100% Duty Cycle___ ___* Power good inductor___ ___* Output Discharge___ ___* Output Voltage Adjustable from 0.6V___ ___* Support Pre-Biased Output Startup___ ___* Full Protection, OCP, OVP, OTP, SCP, FB Open Protection___	___* Buck___	___V___	3.6	30	6	0.6	-	500K 1100K	0.35	___-___	___QFN2x3-13___
___UD182013S___	___18V, 2A, 580kHz SYNCHRONOUS STEP DOWN CONVERTER___ ___* 4.5V to 18V Input Voltage Range___ ___* 2A Available Load Current___ ___* 580kHz Constant Switching Frequency___ ___* Low RDSON for Internal Switches:___ ___High-side:120mΩ___ ___Low-side:80mΩ___ ___* Soft Start Time: 1.5ms___ ___* Advanced Constant On-Time Control___ ___Fast Transient Responses___ ___Input Under-Voltage Lockout___ ___Input Over-Voltage Protection___ ___Output Under-Voltage Protection___ ___Cycle-by-cycle Over Current Limit___ ___Short Circuit with Hiccup Mode___ ___Over-Temperature Protection___ ___Optimized for Low-ESR Ceramic Output Capacitors___	___* Buck___	___V___	4.5	18	2	0.6	-	580K	0.28	___6___	___SOT-26___
___UD182013T___	___18V, 2A, 580kHz SYNCHRONOUS STEP DOWN CONVERTER___ ___* 4.5V to 18V Input Voltage Range___ ___* 2A Available Load Current___ ___* 580kHz Constant Switching Frequency___ ___* Low RDSON for Internal Switches:___ ___High-side:120mΩ___ ___Low-side:80mΩ___ ___* Soft Start Time: 1.5ms___ ___* Advanced Constant On-Time Control___ ___Fast Transient Responses___ ___Input Under-Voltage Lockout___ ___Input Over-Voltage Protection___ ___Output Under-Voltage Protection___ ___Cycle-by-cycle Over Current Limit___ ___Short Circuit with Hiccup Mode___ ___Over-Temperature Protection___ ___Optimized for Low-ESR Ceramic Output Capacitors___	___* Buck___	___V___	4.5	18	2	0.768	-	580K	0.28	___8___	___SOT-26___
___UD18306S___	___18V, 3A, 580kHz SYNCHRONOUS STEP DOWN CONVERTER___ ___* 4.5V to 18V Input Voltage Range___ ___* 3A Available Load Current___ ___* 580kHz Constant Switching Frequency___ ___* Low RDSON for Internal Switches:___ ___High-side:80mΩ___ ___Low-side:60mΩ___ ___* Soft Start Time: 1.2ms___ ___* Advanced Constant On-Time Control___ ___Fast Transient Responses___ ___Input Under-Voltage Lockout___ ___Input Over-Voltage Protection___ ___Output Under-Voltage Protection___ ___Cycle-by-cycle Over Current Limit___ ___Short Circuit with Hiccup Mode___ ___Over-Temperature Protection___ ___Optimized for Low-ESR Ceramic Output Capacitors___	___* Buck___	___V___	4.5	18	3	0.6	-	580K	0.28	___5___	___SOT-26___
___UD18306T___	___18V 3A 580KHZ SYNCHRONOUS STEP-DOWN CONVERTER___ ___* 4.5V to 18V Input Voltage Range___ ___* 3A Available Load Current___ ___* 580kHz Constant Switching Frequency___ ___* Low RDS(ON) for Internal Switches:___ ___High-side: 80mΩ___ ___Low-side: 60mΩ___ ___* Soft Start time: 1.5ms___ ___* Advanced Constant On-Time Control___ ___* Fast Transient Responses___ ___* Input Under-Voltage Lockout___ ___* Input Over-Voltage Protection___ ___* Output Under-Voltage Protection___ ___* Cycle-by-cycle Over Current Limit___ ___* Short Circuit with Hiccup Mode___ ___* Over-Temperature Protection___ ___* Optimized for Low-ESR Ceramic Output Capacitors___	___* Buck___	___V___	4.5	18	3	0.768	-	580K	0.28	___5___	___SOT-26___
___UD36202___	___* 4.5V to 36V Wide Input Range___ ___* 2A Continuous Output Current___ ___* 135mΩ/85mΩ Internal Power MOSFETs___ ___* Constant On Time Control for Fast Loop Response___ ___* 520kHz Switching Frequency___ ___* Pulse Frequency Modulation at Light Load___ ___* Support Up to 98% Large Range Duty Cycle___ ___* Internal Soft Start___ ___* Output Voltage Adjustable from 0.596V___ ___* Support Pre-Biased Output Startup___ ___* Full Protection, Over Current Protection and Hiccup, Output Over Voltage Protection, FB Open Short Protection___ ___,Over Temperature Protection___	___* Buck___	___V___	4.5	36	2	0.596	-	520K	0.16	___0.001___	___SOT-26___
___UD36301___	___* 4.5V to 36V Wide Input Range___ ___* 3A Continuous Output Current___ ___* 120mΩ/80mΩ Internal Power MOSFETs___ ___* Constant On Time Control for Fast Loop Response___ ___* 520kHz Switching Frequency___ ___* Pulse Frequency Modulation at Light Load___ ___* Support Up to 98% Large Range Duty Cycle___ ___* Internal Soft Start___ ___* Output Voltage Adjustable from 0.8V___ ___* Support Pre-Biased Output Startup___ ___* Full Protection, Over Current Protection and Hiccup, Output Over Voltage Protection, FB Open Short Protection___ ___,Over Temperature Protection___	___* Buck___	___V___	4.5	36	3	0.8	-	520K	0.15	___0.001___	___HSOP-8___
___UD30600___	___* Wide 3.6V to 30V Input Range___ ___* Support 6A Continuous Output Current___ ___* 500kHz/1.1MHz Switching Frequency Selectable___ ___* Low RDS(ON) for Internal Switches:___ ___High-side:32mΩ___ ___Low-side: 20mΩ___ ___* PFM and FPWM Mode Selectable___ ___* Constant On Time Control for Fast Loop Response l___ ___* Support Up to 100% Duty Cycle___ ___* Power good inductor___ ___* Output Discharge___ ___* Output Voltage Adjustable from 0.6V___ ___* Support Pre-Biased Output Startup___ ___* Full Protection, OCP, OVP, OTP, SCP, FB Open Protection___	___* Buck___	___V___	3.6	30	6	0.6	-	500kHz/1.1MHz	0.35	___0.001___	___VQFN-13(2×3)___
___UD18306___	___* 4.5V to 18V Input Voltage Range___ ___* 3A Available Load Current___ ___* 580kHz Constant Switching Frequency___ ___* Low RDS(ON) for Internal Switches:___ ___High-side: 80mΩ___ ___Low-side: 60mΩ___ ___* Soft Start time: 1.2ms___ ___* Advanced Constant On-Time Control___ ___* Fast Transient Responses___ ___* Input Under-Voltage Lockout___ ___* Input Over-Voltage Protection___ ___* Output Under-Voltage Protection___ ___* Cycle-by-cycle Over Current Limit___ ___* Short Circuit with Hiccup Mode___ ___* Over-Temperature Protection___ ___* Optimized for Low-ESR Ceramic Output Capacitors___	___* Buck___	___V___	4.5	18	3	0.6	-	580K	0.28	___0.005___	___SOT-26___

This site uses cookies to collect the necessary user browsing behavior so that we can provide you with a better browsing experience. Browse this site, which means you agree with "online privacy declaration."