LM2576SX-ADJ/NOPB

$3.16

Description：IC REG BUCK ADJ 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:bf795a0ec081 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2576SX-ADJ/NOPB is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK ADJ 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2576SX-ADJ/NOPB

Description：IC REG BUCK ADJ 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
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 (DDPAK-5)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2576SX-ADJ/NOPB

LM2576SX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576SX-ADJ/NOPB is a Texas Instruments adjustable step-down switching regulator in a surface-mount TO-263 package. It operates with an input voltage range of 4V to 40V and delivers up to 3A output current. The output voltage is adjustable from 1.23V to 37V using external resistors. Key electrical parameters include a typical quiescent current of 5mA, a fixed switching frequency of 52kHz, and a maximum efficiency of 77%. It features thermal shutdown and cycle-by-cycle current limiting for protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated buck converter topology designed for high-efficiency DC-DC step-down conversion
Adjustable output voltage capability via external feedback resistor network
Built-in thermal shutdown and cycle-by-cycle current limit for fault protection

Voltage Regulators - DC DC Switching Regulators Applications

Distributed power supply architectures
On-card regulation modules
Post-regulation stages for standard logic supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration. Ensure the component meets RoHS and JEDEC standards as specified in the product documentation. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a surface-mount solution is required for high-current applications. The adjustable output variant offers flexibility for custom voltage requirements. Consider the TO-263 package for its thermal performance compared to smaller packages. Verify that the input voltage does not exceed the 40V absolute maximum rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2576 series of SIMPLE SWITCHER power converters. It serves as a low-component-count solution for replacing linear regulators in various power management designs. The series is known for reducing heat sink size and eliminating shielding requirements in many applications.