LTC3857 Series

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

LOW IQ, DUAL, 2-PHASE SYNCHRONOUS STEP-DOWN CONTROLLER

Part	Number of Outputs	Package Length	Package Name	Package Width	Operating Temperature (Max)	Operating Temperature (Min)	Topology	Clock Sync	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Output Phases	Output Configuration	Function	Frequency - Switching (Max)	Frequency - Switching (Min)	Control Features	Duty Cycle (Max)	Mounting Type	Synchronous Rectifier	Output Type	Package / Case
Analog Devices Inc./Maxim Integrated LTC3857EGN-1#TRPBF	2	0.154 in	28-SSOP	3.9 mm	125 °C	-40 °C	Buck	No	4 V	38 V	2	Positive	Step-Down	535 kHz 835 kHz	105 kHz 350 kHz	Enable Frequency Control Power Good Soft Start Tracking	99.4 %	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3857IGN-1#PBF	2	0.154 in	28-SSOP	3.9 mm	125 °C	-40 °C	Buck	No	4 V	38 V	2	Positive	Step-Down	535 kHz 835 kHz	105 kHz 350 kHz	Enable Frequency Control Power Good Soft Start Tracking	99.4 %	Surface Mount	Yes	Transistor Driver
Analog Devices Inc./Maxim Integrated LTC3857EUH#PBF	2	5 mm	32-QFN	5 mm	125 °C	-40 °C	Buck	No	4 V	38 V	2	Positive	Step-Down	535 kHz 835 kHz	105 kHz 350 kHz	Current Limit Enable Frequency Control Phase Control Power Good Soft Start Tracking	99.4 %	Surface Mount	Yes	Transistor Driver	32-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3857EUH#TRPBF	2	5 mm	32-QFN	5 mm	125 °C	-40 °C	Buck	No	4 V	38 V	2	Positive	Step-Down	535 kHz 835 kHz	105 kHz 350 kHz	Current Limit Enable Frequency Control Phase Control Power Good Soft Start Tracking	99.4 %	Surface Mount	Yes	Transistor Driver	32-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3857IUH#TRPBF	2	5 mm	32-QFN	5 mm	125 °C	-40 °C	Buck	No	4 V	38 V	2	Positive	Step-Down	535 kHz 835 kHz	105 kHz 350 kHz	Current Limit Enable Frequency Control Phase Control Power Good Soft Start Tracking	99.4 %	Surface Mount	Yes	Transistor Driver	32-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LTC3857IUH#PBF	2	5 mm	32-QFN	5 mm	125 °C	-40 °C	Buck	No	4 V	38 V	2	Positive	Step-Down	535 kHz 835 kHz	105 kHz 350 kHz	Current Limit Enable Frequency Control Phase Control Power Good Soft Start Tracking	99.4 %	Surface Mount	Yes	Transistor Driver	32-WFQFN Exposed Pad