LT3641HFE#TRPBF

$5.62

Description：IC REG BUCK ADJ DL 28TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:56b223e80ec6 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ DL 28TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：2
Voltage - Input (Min)：2.5V
Voltage - Input (Max)：42V
Voltage - Output (Min/Fixed)：0.6V, 1.265V
Voltage - Output (Max)：39.48V
Current - Output：1.3A, 1.1A
Frequency - Switching：500kHz ~ 2MHz
Synchronous Rectifier：Both
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：28-TSSOP-EP
Grade：-
Qualification：-

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LT3641HFE#TRPBF

Overview

The LT3641HFE#TRPBF is an automotive-grade, dual-channel synchronous step-down DC/DC converter manufactured by Analog Devices. It accepts input voltages from 4V to 42V and provides two independent adjustable outputs ranging from 1.265V to 40.97V. Each channel delivers a continuous output current of 1.3A. The device operates with a programmable switching frequency between 350kHz and 2.5MHz and features a quiescent current of 275µA. It is housed in a 28-lead TSSOP package with an exposed pad and supports an operating temperature range from -40°C to +125°C.

Feature Summary

Dual-channel architecture providing independent synchronous buck regulation for two separate loads
Integrated power-on reset and watchdog timer functions for enhanced system reliability
Automotive qualification ensuring operation under harsh environmental conditions
Programmable switching frequency allows optimization for efficiency or component size

Applications

Automotive infotainment systems requiring multiple regulated voltage rails
Telematics control units needing high-reliability power management
Body control modules with dual-output power distribution requirements
ADAS sensor interfaces utilizing synchronized buck conversion

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging rather than tube packaging when ordering. Confirm the H-grade designation matches automotive AEC-Q100 requirements for your target application environment. Ensure the 28-lead TSSOP footprint aligns with your PCB layout constraints before finalizing procurement specifications.

Selection Notes

Select this component when dual isolated outputs are required from a single high-voltage automotive bus. The wide input range accommodates cold crank and load dump scenarios common in vehicle electrical systems. Choose this part over single-channel regulators to reduce board space and simplify bill of materials for applications needing two distinct voltage levels.

Part Context

This device belongs to the LT3641 family of dual synchronous buck converters designed specifically for automotive electronics. It shares architectural similarities with other ADI automotive power management ICs but distinguishes itself through integrated safety features like watchdog timers. The family targets applications demanding high efficiency and compact solutions in constrained automotive environments.