LT3685EDD#TRPBF

$8.49

Description：IC REG BUCK ADJ 2A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:51d2f25a7797 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 2A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.6V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：0.79V
Voltage - Output (Max)：20V
Current - Output：2A
Frequency - Switching：200kHz ~ 2.4MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x3)

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LT3685EDD#TRPBF

Overview

The LT3685EDD#TRPBF is a monolithic step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 36V and delivers up to 2A of output current. The device features a programmable switching frequency ranging from 200kHz to 2.4MHz, allowing for optimization between component size and efficiency. The adjustable output voltage starts at 0.79V, supporting single-output configurations. Packaged in a thermally enhanced 10-WFDFN (3x3mm) with exposed pad, it supports surface mount installation and functions within a junction temperature range of -40°C to 125°C.

Feature Summary

Integrates a high-efficiency power switch and control circuitry for compact step-down conversion
Features resistor-programmable switching frequency to optimize external component selection
Includes cycle-by-cycle current limit protection against shorted outputs
Provides soft-start functionality to eliminate input current surge during startup

Applications

Regulating power from unregulated wall transformers
Powering systems from 24V industrial supplies
Battery-powered applications requiring low shutdown current management

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the EDD designation corresponds to the 10-WFDFN package variant. Ensure compatibility with the required operating temperature range and input voltage specifications for the target application before finalizing procurement.

Selection Notes

Select this component when a wide input voltage range up to 36V is required alongside a compact footprint. The adjustable frequency feature allows designers to minimize passive component sizes. Consider the thermal performance of the DFN package for high-current applications and verify that the 2A output capability meets the load requirements.

Part Context

This part belongs to the LT3685 family of high-voltage buck regulators. It shares architectural similarities with other Linear Technology step-down converters but is distinguished by its specific 36V input rating and 2A current capacity. The device is designed for applications requiring efficient power conversion from higher voltage rails.