LT3837IFE#PBF

Active

Analog Devices Inc./Maxim Integrated

CURRENT MODE PWM CONTROLLER 50KHZ TO 250KHZ 16-PIN TSSOP EP TUBE

Find alt

Alpha

LT3837IFE#PBF

Active

Analog Devices Inc./Maxim Integrated

CURRENT MODE PWM CONTROLLER 50KHZ TO 250KHZ 16-PIN TSSOP EP TUBE

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

LT3837 Series

The LT3837 is an isolated switching regulator controller designed for medium power flyback topologies. A typical application is 10W to 60W with the part powered from a DC supply.The LT3837 is a current mode controller that regulates an output voltage based on sensing the secondary voltage via a transformer winding during flyback. This allows for tight output regulation without the use of an optoisolator, improving dynamic response and reliability. Synchronous rectification increases converter efficiency and improves output cross regulation in multiple output converters.The LT3837 operates in forced continuous conduction mode which improves cross regulation in multiple winding applications. Switching frequency is user programmable and can be externally synchronized. The part also has load compensation, undervoltage lockout and soft-start circuitry.The LT3837 is available in a thermally enhanced 16-pin TSSOP package.ApplicationsIsolated Medium Power (10W to 60W) SuppliesInstrumentation Power SuppliesIsolated Medical Supplies

Technical Specifications

Parameters and characteristics for this part

Specification	LT3837IFE#PBF

Clock Sync	Yes
Control Features	Enable, On Time Control, Frequency Control
Duty Cycle (Max)	88 %
Frequency - Switching	100 kHz
Function	Step-Up, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	16-TSSOP-EP, 16-TSSOP
Package Width	4.4 mm
Synchronous Rectifier	Yes
Topology	Flyback
Voltage - Supply (Vcc/Vdd) Maximum	20 V
Voltage - Supply (Vcc/Vdd) Minimum	4.5 V

LT3837 Series

Part	Control Features	Clock Sync	Topology	Package Name	Output Type	Synchronous Rectifier	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Output Configuration	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Duty Cycle (Max)	Package Width	Package Features	Package Length	Function	Frequency - Switching	Number of Outputs	Output Phases
Analog Devices Inc./Maxim Integrated LT3837IFE#PBF	Enable Frequency Control On Time Control	Yes	Flyback	16-TSSOP 16-TSSOP-EP	Transistor Driver	Yes	20 V	4.5 V	Isolation Capable Positive	Surface Mount	125 °C	-40 °C	88 %	4.4 mm	Exposed Pad	0.173 in	Step-Down Step-Up	100 kHz	1	1
Analog Devices Inc./Maxim Integrated LT3837EFE#PBF	Enable Frequency Control On Time Control	Yes	Flyback	16-TSSOP 16-TSSOP-EP	Transistor Driver	Yes	20 V	4.5 V	Isolation Capable Positive	Surface Mount	125 °C	-40 °C	88 %	4.4 mm	Exposed Pad	0.173 in	Step-Down Step-Up	100 kHz	1	1
Analog Devices Inc./Maxim Integrated LT3837IFE#TRPBF	Enable Frequency Control On Time Control	Yes	Flyback	16-TSSOP 16-TSSOP-EP	Transistor Driver	Yes	20 V	4.5 V	Isolation Capable Positive	Surface Mount	125 °C	-40 °C	88 %	4.4 mm	Exposed Pad	0.173 in	Step-Down Step-Up	100 kHz	1	1
Analog Devices Inc./Maxim Integrated LT3837EFE#TRPBF	Enable Frequency Control On Time Control	Yes	Flyback	16-TSSOP 16-TSSOP-EP	Transistor Driver	Yes	20 V	4.5 V	Isolation Capable Positive	Surface Mount	125 °C	-40 °C	88 %	4.4 mm	Exposed Pad	0.173 in	Step-Down Step-Up	100 kHz	1	1

Pricing

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

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R458 Reliability Data

LT3837IFE#PBF | Datasheet