Specification	LT8357JMSE#PBF

Clock Sync	False
Control Features	Frequency Control, Power Good, Current Limit, Soft Start, Enable
Duty Cycle (Max) [Max]	95 %
Frequency - Switching [Max]	2 MHz
Frequency - Switching [Min]	100 kHz
Function	Step-Up/Step-Down, Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	12-TSSOP, Exposed Pad
Package / Case [x]	0.118 in
Package / Case [y]	3 mm
Supplier Device Package	12-MSOP-EP
Synchronous Rectifier	False
Topology	Boost, SEPIC, Flyback
Voltage - Supply (Vcc/Vdd) [Max]	60 V
Voltage - Supply (Vcc/Vdd) [Min]	3 V

LT8357 Series

60V 2MHz Low-IQBoost, SEPIC and Flyback Controller

Part	Control Features	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Phases	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Output Type	Frequency - Switching [Min]	Frequency - Switching [Max]	Package / Case [y]	Package / Case	Package / Case [x]	Duty Cycle (Max) [Max]	Supplier Device Package	Function	Topology	Output Configuration	Outputs and Type	Outputs and Type	Board Type	Supplied Contents	Utilized IC / Part	Current - Output	Voltage - Input [Min]	Voltage - Input [Max]	Main Purpose	Contents	Regulator Topology	Voltage - Output	Frequency - Switching
Analog Devices Inc./Maxim Integrated LT8357JMSE#TRPBF	Current Limit Enable Frequency Control Power Good Soft Start	3 V	60 V	1	Surface Mount	-40 °C	150 °C	1	Transistor Driver	100 kHz	2 MHz	3 mm	12-TSSOP Exposed Pad	0.118 in	95 %	12-MSOP-EP	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	Positive
Analog Devices Inc./Maxim Integrated LT8357HMSE#PBF	Current Limit Enable Frequency Control Power Good Soft Start	3 V	60 V	1	Surface Mount	-40 °C	150 °C	1	Transistor Driver	100 kHz	2 MHz	3 mm	12-TSSOP Exposed Pad	0.118 in	95 %	12-MSOP-EP	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	Positive
Analog Devices Inc./Maxim Integrated EVAL-LT8357-AZ																				1	1 Non-Isolated Output Non-Isolated	Fully Populated	Board(s)	LT8357	1 A 2 A	4.5 V	20 V	DC/DC Step Up	Board(s)	Boost	24 V	200 kHz
Analog Devices Inc./Maxim Integrated LT8357EMSE#TRPBF	Current Limit Enable Frequency Control Power Good Soft Start	3 V	60 V	1	Surface Mount	-40 C	125 °C	1	Transistor Driver	100 kHz	2 MHz	3 mm	12-TSSOP Exposed Pad	0.118 in	95 %	12-MSOP-EP	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	Positive
Analog Devices Inc./Maxim Integrated LT8357JMSE#PBF	Current Limit Enable Frequency Control Power Good Soft Start	3 V	60 V	1	Surface Mount	-40 °C	150 °C	1	Transistor Driver	100 kHz	2 MHz	3 mm	12-TSSOP Exposed Pad	0.118 in	95 %	12-MSOP-EP	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	Positive
Analog Devices Inc./Maxim Integrated LT8357EMSE#PBF	Current Limit Enable Frequency Control Power Good Soft Start	3 V	60 V	1	Surface Mount	-40 C	125 °C	1	Transistor Driver	100 kHz	2 MHz	3 mm	12-TSSOP Exposed Pad	0.118 in	95 %	12-MSOP-EP	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	Positive
Analog Devices Inc./Maxim Integrated LT8357HMSE#TRPBF	Current Limit Enable Frequency Control Power Good Soft Start	3 V	60 V	1	Surface Mount	-40 °C	150 °C	1	Transistor Driver	100 kHz	2 MHz	3 mm	12-TSSOP Exposed Pad	0.118 in	95 %	12-MSOP-EP	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	Positive

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	210	$ 6.57	1m+
	Tube	1	$ 6.57	1m+
		10	$ 4.34
		37	$ 3.56
		111	$ 3.07
		259	$ 2.78
		518	$ 2.59
Mouser	N/A	1	$ 5.05	1m+
		10	$ 3.85
		25	$ 3.45
		111	$ 2.80
		259	$ 2.68
		2516	$ 2.58

Description

General part information

LT8357 Series

The LT8357 is a wide input range, current mode, DC/DC controller which can be configured as a boost, SEPIC or flyback converter. The LT8357 drives a low side N-channel power MOSFET with 5V split gate drive. The current mode architecture allows adjustable and synchronizable 100kHz to 2MHz fixed frequency operation, or internal 19% triangle spread spectrum operation for low EMI. At light load, either pulse-skipping mode or low-ripple Burst Mode operation can be selected. Additional features include output power good and output short circuit protection in SEPIC and flyback configurations.With a wide 3V to 60V input voltage range and 8μA low quiescent current, the LT8357 provides a simple, compact and efficient solution for automotive, industrial, and battery-powered systems.APPLICATIONSAutomotive and Industrial SystemsBattery-Powered SystemsPortable Electronic Equipment

Documents

Technical documentation and resources

Datasheet

DC2937A - Demo Manual (Rev.0)

User Guide

EVAL-LT8357-AZ - Demo Manual (Rev.0)

User Guide