LT3692AEFE

Description：IC REG BUCK ADJ 3.5A DL 38TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:879946711d68 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 3.5A DL 38TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：2
Voltage - Input (Min)：3V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：34.2V
Current - Output：3.5A
Frequency - Switching：110kHz ~ 2.5MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：38-TSSOP-EP
Grade：-
Qualification：-

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LT3692AEFE

Overview

The LT3692AEFE is a monolithic dual tracking 3.5A step-down switching regulator from Analog Devices Inc. It features two internal 3.8A switches and operates with an input voltage range of 3V to 36V. The device supports adjustable output voltages from 0.8V to 34.2V per channel. It utilizes a fixed 2.5MHz internal oscillator or external synchronization, maintaining a 180° phase relationship between channels to reduce ripple. The component is housed in a 38-pin TSSOP-EP package.

Feature Summary

Dual current mode PWM architecture with independent control pins for shutdown, soft-start, and feedback
Simplified complex power supply tracking and sequencing requirements through dedicated comparator and UVLO pins
Fixed 2.5MHz switching frequency with 180-degree phase shift to minimize output capacitance and ripple

Applications

Complex power supply tracking and sequencing systems
Multi-rail embedded computing platforms
Industrial equipment requiring synchronized dual-bus regulation

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with the required thermal management solution for the TSSOP-EP package. Confirm that the application design accounts for the fixed 2.5MHz switching frequency constraints regarding inductor selection and EMI performance.

Selection Notes

Select this component when dual-channel synchronous buck regulation with precise tracking capabilities is required. The independent control pins allow for customized startup sequences without external logic. Consider the 3.5A continuous current rating and 3.8A peak switch capability for load transient response requirements within the specified input voltage range.

Part Context

The LT3692AEFE belongs to the LT3692A family of dual tracking regulators designed for high-density power applications. It integrates two complete buck converters into a single package, optimizing board space compared to discrete solutions. The device is part of Analog Devices' portfolio of PMICs focused on simplifying multi-output power distribution networks.