LM2576WU-TR

$1.52

Description：IC REG BUCK ADJ 3A TO263-5
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:35187afb4a8c Category: Voltage Regulators - DC DC Switching Regulators Brand: Microchip Technology

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Product introduction

LM2576WU-TR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is IC REG BUCK ADJ 3A TO263-5. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2576WU-TR

Description：IC REG BUCK ADJ 3A TO263-5
Series：-
Mfr：Microchip Technology
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)：4V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.23V
Voltage - Output (Max)：37V
Current - Output：3A
Frequency - Switching：52kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package：TO-263-5
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2576WU-TR

LM2576WU-TR

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576WU-TR is a monolithic integrated circuit providing all active functions for a step-down (buck) switching regulator. It drives a 3A load with excellent line and load regulation, featuring a fixed 52 kHz internal oscillator and a 1.23V reference voltage. The device supports an input voltage range of 4V to 40V and delivers adjustable output voltages from 1.23V to 37V. Packaged in a surface-mount TO-263-5 (D2PAK) format, it includes cycle-by-cycle current limiting and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated 52 kHz fixed-frequency oscillator eliminates external timing components
Internal power switch rated for 3A continuous load current
External shutdown control pin enables low standby current operation
Built-in thermal shutdown and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

Simple and efficient step-down DC-DC converters
Pre-regulators for linear regulators
High-efficiency off-line switchers
Direct regulation from bus lines

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official Microchip documentation or distributor certificates. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Check for moisture sensitivity level requirements during storage and handling.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring high efficiency at moderate frequencies. The TO-263 package offers better thermal performance than smaller SMD options. Consider the 52 kHz frequency for EMI management compared to higher-frequency alternatives. Ensure input voltage does not exceed 40V limits for standard versions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of SIMPLE SWITCHER® regulators. It serves as a direct replacement for many three-terminal linear regulators, significantly reducing heat sink size and cost. The series includes fixed voltage outputs and adjustable versions, widely used in industrial and commercial power supplies.