LT3757AEMSE#WTRPBF

Overview

The LT3757AEMSE#WTRPBF is a DC-DC switching controller manufactured by Analog Devices Inc., designed for boost, flyback, SEPIC, and inverting topologies. It supports positive and negative outputs with step-up or step-down capabilities. The device operates within a supply voltage range of 2.9V to 40V and features an adjustable switching frequency from 100kHz to 1MHz. It includes clock synchronization, enable control, frequency control, and soft-start functions. The component is housed in a 10-MSOP-EP package with an exposed pad, suitable for surface-mount installation across a junction temperature range of -40°C to 125°C.

Feature Summary

• Supports multiple converter topologies including boost, flyback, SEPIC, and inverting configurations.
• Enables clock synchronization for multi-phase or parallel system operation.
• Provides comprehensive control features including enable, frequency control, and soft-start.
• Delivers transistor driver outputs for external power stage control.

Applications

• Industrial power supplies requiring flexible input voltage ranges
• Battery-powered systems utilizing boost or SEPIC architectures
• Automotive electronics needing flyback or inverting regulator solutions
• Telecommunications equipment employing isolated or non-isolated DC-DC conversion

Procurement Notes

Verify the exact suffix #WTRPBF against official Analog Devices documentation to confirm tape-and-reel packaging specifications and marking details. Ensure compatibility with 10-MSOP-EP footprint requirements during PCB layout. Cross-reference thermal performance data with application notes for high-temperature environments exceeding standard operating limits.

Selection Notes

Select this controller when design requirements demand support for diverse topologies such as SEPIC or inverting converters alongside standard boost or flyback applications. Consider the wide input voltage range and synchronized switching capability if system architecture requires phase alignment or broad input flexibility. Evaluate thermal management needs due to the exposed pad package design for efficient heat dissipation.

Part Context

This component belongs to the LT3757 family of switching controllers, which are engineered for versatile DC-DC conversion tasks. The LT3757 series distinguishes itself by supporting complex topologies beyond simple buck or boost circuits, making it suitable for applications with varying input-output relationships. The EMSE variant specifically denotes the MSOP package configuration optimized for space-constrained designs.

Replacement Considerations

LT3757AEMSE#TRPBF