LT3690HUFE#TRPBF

$7.20

Description：IC REG BUCK ADJ 4A 26QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:c1a1e5b245e0 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 4A 26QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.9V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：20V
Current - Output：4A
Frequency - Switching：138kHz ~ 1.5MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：26-WFQFN Exposed Pad
Supplier Device Package：26-QFN (4x6)

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LT3690HUFE#TRPBF

Overview

The LT3690HUFE#TRPBF is an automotive-grade, adjustable frequency synchronous step-down switching regulator manufactured by Analog Devices. It accepts input voltages from 3.9V to 36V and delivers up to 4A of output current with an adjustable output voltage range of 800mV to 20V. The device operates at a switching frequency between 1.22MHz and 1.68MHz and features a typical quiescent current of 70µA. It utilizes a QFN-26 package and supports operation temperatures from -40°C to +150°C.

Feature Summary

Integrated high-efficiency synchronous power switches with low on-resistance to eliminate external catch diodes
Adjustable switching frequency allows optimization for specific efficiency or component size requirements
Automotive qualification ensures reliability in harsh thermal environments

Applications

Automotive infotainment systems
Telematics control units
Body electronics modules

Procurement Notes

Verify the suffix #TRPBF indicates tape-and-reel packaging rather than tube. Confirm the HUFE grade matches automotive temperature and reliability standards. Cross-reference the manufacturer datasheet for exact pinout and thermal pad specifications before finalizing procurement.

Selection Notes

Select this component when designing for automotive applications requiring high input voltage tolerance and adjustable frequency. Ensure the required output current does not exceed 4A and that the operating temperature range aligns with the -40°C to +150°C specification. Verify compatibility with the desired switching frequency setting.

Part Context

This part belongs to the LT3690 family of synchronous buck regulators designed for automotive use. It shares core topology with other LT3690 variants but differs in packaging and temperature grade. The HUFE designation specifies the automotive qualification and reel packaging format.