LT1374CR#TRPBF

$13.56

Description：IC REG BUCK SEPIC ADJ 4.5A DDPAK
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:781249589f78 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK SEPIC ADJ 4.5A DDPAK
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck, SEPIC
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：5V
Voltage - Input (Max)：25V
Voltage - Output (Min/Fixed)：2.42V
Voltage - Output (Max)：21.5V
Current - Output：4.5A (Switch)
Frequency - Switching：500kHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
Supplier Device Package：DDPAK-7

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LT1374CR#TRPBF

Overview

The LT1374CR#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates at a constant 500kHz frequency and supports an input voltage range of 5V to 25V. The device features an integrated 4.5A power switch with cycle-by-cycle current limiting. It provides an adjustable output voltage and includes a shutdown function with a typical quiescent current of 20µA. The component is housed in a surface-mount DDPAK-7 package and is rated for operation between 0°C and +125°C.

Feature Summary

Integrates a high-power 4.5A switch with low effective on-resistance
Features a fixed 500kHz switching frequency to minimize external inductor size
Includes cycle-by-cycle current limiting for robust protection
Supports easy synchronization to an external clock signal

Applications

Point-of-load regulation for digital logic supplies
Battery-powered systems requiring efficient step-down conversion
Industrial control board power distribution
Communication equipment power management

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. or Linear Technology. Ensure the part number matches the exact electrical specifications for the 500kHz buck topology. Cross-reference the datasheet revision to ensure compatibility with design requirements.

Selection Notes

Select this component for applications requiring moderate current up to 4.5A without synchronous rectification. The fixed 500kHz frequency allows for smaller passive components compared to lower-frequency regulators. Consider the thermal performance of the DDPAK-7 package for heat dissipation needs. Verify that the non-synchronous design meets efficiency requirements for the target load profile.

Part Context

This part belongs to the LT1374 series of step-down switching regulators. It shares core architecture with variants like the LT1374IFE, differing primarily in package type and temperature rating. The series is designed for general-purpose DC/DC conversion where cost and simplicity are prioritized over maximum efficiency.