LT1374IT7-5#PBF

$8.43

Description：IC REG BCK SEPIC 5V 4.5A TO220-7
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:6ebf9ccc9093 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BCK SEPIC 5V 4.5A TO220-7
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck, SEPIC
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：5V
Voltage - Input (Max)：25V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：4.5A (Switch)
Frequency - Switching：500kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-7 Formed Leads
Supplier Device Package：TO-220-7

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LT1374IT7-5#PBF

Overview

The LT1374IT7-5#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It integrates a 4.5A power switch and operates at a fixed 500kHz frequency. The device provides a fixed 5V output with a maximum input voltage of 25V. It features current-mode control, cycle-by-cycle current limiting, and a shutdown mode drawing 20µA. The component is housed in an 8-pin SOIC package and supports operation from -40°C to +125°C.

Feature Summary

Integrates a high-current 4.5A switch for efficient step-down conversion
Utilizes constant 500kHz switching frequency to minimize external component 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 high efficiency
Industrial equipment power distribution
Telecommunications infrastructure power management

Procurement Notes

Verify the specific suffix IT7 against official datasheets to confirm tape-and-reel packaging and industrial temperature range (-40°C to +125°C). Ensure the -5 variant matches the required fixed 5V output specification. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a fixed 5V output is required from an input voltage up to 25V. The integrated 4.5A switch eliminates the need for external pass transistors. The 500kHz frequency allows for smaller inductors compared to lower-frequency regulators. Verify that the thermal requirements of the SOIC-8 package are met for the expected load current.

Part Context

This part belongs to the LT1374 family of high-efficiency step-down switching regulators. The family includes variants with adjustable outputs and different package options such as TSSOP and DPAK. The LT1374 series is designed to replace linear regulators in applications requiring higher efficiency and lower heat dissipation while maintaining compact board space.