LM2576S-ADJ/NOPB

$3.67

Description：IC REG BUCK ADJ 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:5381d88b49c5 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2576S-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 LM2576S-ADJ/NOPB

Description：IC REG BUCK ADJ 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
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 LM2576S-ADJ/NOPB

LM2576S-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576S-ADJ/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator in a TO-263 surface-mount package. It operates with an input voltage range of 4V to 40V and provides an adjustable output from 1.23V to 37V at up to 3A. The device features a fixed 52kHz switching frequency, ±4% output tolerance, and integrated thermal shutdown and current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated 52kHz fixed-frequency oscillator simplifies external component selection
Internal thermal shutdown and cycle-by-cycle current limit for robust protection
TTL-compatible shutdown pin enables low-power standby operation

Voltage Regulators - DC DC Switching Regulators Applications

Efficient replacement for three-terminal linear regulators
Pre-regulator circuits for switching power supplies
Local board-level regulation systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the presence of the /NOPB suffix to confirm lead-free compliance and RoHS certification. Confirm the specific manufacturer source, as components may originate from Texas Instruments or authorized licensees following industry acquisitions. Ensure the TO-263 package variant matches your PCB footprint requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when input voltages exceed 40V, consider the LM2576HV series variants instead. Verify that the required output voltage falls within the 1.23V to 37V adjustable range. Ensure the application demands a maximum continuous load current of 3A or less to stay within safe operating limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2576 family of monolithic step-down regulators. The 'S' designation indicates a surface-mount TO-263 package, while 'ADJ' specifies the adjustable output version. The '/NOPB' suffix denotes non-halogenated, lead-free construction compliant with environmental standards.