LT3757IMSE#TRPBF

$6.74

Description：IC REG CTRLR MULT TOP 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:bb7fbca1388d Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR MULT TOP 10MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive and Negative
Topology：Boost, Flyback, SEPIC
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：2.9V ~ 40V
Frequency - Switching：100kHz ~ 1MHz
Duty Cycle (Max)：-
Synchronous Rectifier：No
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package：10-MSOP-EP
Grade：-
Qualification：-

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LT3757IMSE#TRPBF

Overview

The LT3757IMSE#TRPBF is a DC/DC switching controller manufactured by Analog Devices Inc., designed for versatile power conversion topologies including Boost, Flyback, SEPIC, and Inverting configurations. It operates with a single output and supports both positive and negative output voltages. The device features an adjustable switching frequency range from 100 kHz to 1 MHz and accepts a supply voltage between 2.9 V and 40 V. Key electrical parameters include a typical operating supply current of 1.6 mA, rise time of 22 ns, and fall time of 20 ns. It is housed in a 10-MSOP-EP package and functions within a temperature range of -40°C to +125°C.

Feature Summary

Supports multiple converter topologies including Boost, Flyback, SEPIC, and Inverting circuits
Enables clock synchronization for multi-phase or parallel system applications
Integrates control features such as enable pin, frequency control, and soft-start functionality

Applications

Designing step-up (Boost) DC-DC converters
Implementing isolated flyback power supplies
Developing SEPIC regulators for varying input voltage ranges
Creating inverting DC-DC power stages

Procurement Notes

Verify the exact suffix TRPBF confirms tape-and-reel packaging when sourcing. Confirm that the IMSE variant meets industrial temperature specifications (-40°C to +125°C). Ensure compatibility with the 10-MSOP-EP footprint during PCB layout. Check for recent Product Change Notifications regarding marking or material declarations before finalizing procurement.

Selection Notes

Select this component when a single controller must support various non-isolated and isolated topologies. It is suitable for designs requiring clock synchronization to reduce EMI or allow phase interleaving. Consider the wide input voltage range and integrated soft-start for robust startup sequences. Verify that external MOSFETs can handle the drive requirements given the lack of synchronous rectification integration.

Part Context

This part belongs to the LT3757 family of high-performance switching controllers. It shares functional similarities with the LT3758 but differs in specific configuration capabilities. The device is often evaluated using reference designs such as the DC1341A for SEPIC applications. It serves as a core component in flexible power management systems requiring precise frequency control and topology adaptability.