LM2576S-12

Description：IC REG BUCK 12V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:33b8a92b01b2 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2576S-12 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 12V 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2576S-12

Description：IC REG BUCK 12V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：12V
Voltage - Output (Max)：-
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-12

LM2576S-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576S-12 is a SIMPLE SWITCHER 3A step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 4V to 40V and provides a fixed 12V output at up to 3A. The device features a fixed 52kHz internal oscillator, ensuring high efficiency ranging from 75% to 88%. It includes comprehensive protection mechanisms such as thermal shutdown and current limiting. The component is housed in a TO-263 (D2PAK) surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated 52kHz fixed-frequency oscillator for simplified design
Built-in thermal shutdown and cycle-by-cycle current limiting
External control pin enables low-power standby mode
High conversion efficiency reduces heat dissipation requirements

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load DC/DC conversion modules
Pre-regulators for switching regulators
Efficient buck converters for battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer's datasheet to confirm the fixed 12V output configuration. Ensure the package type matches the required footprint. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the part number with official distributor catalogs to validate authenticity and current production status.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an input voltage between 4V and 40V. It is suitable for applications needing up to 3A continuous current with minimal external components. Consider the TO-263 package for adequate thermal performance without additional heatsinking in many scenarios. Evaluate the 52kHz switching frequency against electromagnetic interference constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of SIMPLE SWITCHER regulators, designed to replace traditional linear regulators for improved efficiency. The 'S' indicates a surface-mount D2PAK package, while '-12' denotes the fixed 12V output variant. The series is known for requiring only four external components for operation.