LT3470AHDDB#TRPBF

$4.03

Description：IC REG BUCK ADJ 250MA 8DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:7f1aaf106e1e 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 250MA 8DFN
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)：4V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：16V
Current - Output：250mA
Frequency - Switching：-
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-WFDFN Exposed Pad
Supplier Device Package：8-DFN (3x2)

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LT3470AHDDB#TRPBF

Overview

The LT3470AHDDB#TRPBF is a micropower step-down DC/DC converter manufactured by Analog Devices Inc. It integrates a 440mA power switch, catch diode, and boost diode into an 8-lead ThinSOT package. The device operates with an input voltage range of 2.7V to 23V and provides an adjustable output voltage from 1.25V to 16V. It delivers up to 250mA of output current with a typical quiescent current of 25µA. The switching frequency is fixed at 1.2MHz, and the component supports operation in both Burst Mode and continuous conduction mode.

Feature Summary

Integrates high-efficiency power switch and synchronous rectification diodes within a compact footprint
Combines Burst Mode operation for light-load efficiency with continuous mode for low ripple
Includes internal boost circuitry to maintain regulation during start-up or input transients

Applications

Battery-powered portable electronics requiring extended runtime
Industrial control systems with single-supply architectures
Automotive infotainment and sensor modules

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the thermal pad connection requirements on the PCB layout to ensure proper heat dissipation. Check the latest datasheet for RoHS compliance status and recommended soldering profiles before finalizing the bill of materials.

Selection Notes

Select this component for designs prioritizing small board space and low standby power consumption. The integrated boost diode simplifies the external component count compared to standard buck converters. Ensure the required output voltage falls within the 1.25V to 16V adjustable range and that the load current does not exceed the 250mA limit.

Part Context

This part belongs to the LT3470 family of micropower regulators. It shares architectural similarities with the LT3470EDDB and LT3470IDDB but features an enhanced power switch rated for higher current. The ThinSOT package offers a smaller solution size than the DFN variants while maintaining similar electrical performance characteristics.