LM2576S-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576S-5.0 is a monolithic integrated circuit step-down (buck) switching regulator manufactured by Shenzhen SLKORMicro Semicon Co., Ltd. It provides a fixed 5V output with a maximum load current of 3A. The device operates within an input voltage range of 4V to 40V and utilizes a fixed-frequency internal oscillator at 52kHz. Designed as a high-efficiency replacement for linear regulators, it requires minimal external components and includes built-in thermal shutdown and cycle-by-cycle current limiting for fault protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 5V output configuration
• Integrated 52kHz oscillator
• Thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

• DC-DC step-down power supplies
• Pre-regulator circuits for switching regulators
• Efficient standard logic power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on the component marking against official SLKORMicro documentation to confirm authenticity. Ensure the package type matches the required TO-263 form factor. Cross-reference the specific suffix codes with the manufacturer's latest datasheet to validate electrical tolerances and temperature ratings before integration into production designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an input voltage between 4V and 40V. It is suitable for applications needing up to 3A continuous load current where high efficiency is prioritized over linear regulation. Consider the thermal performance requirements based on the expected voltage drop and ambient operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of SIMPLE SWITCHER power converters. The series is characterized by its simplicity, requiring only four external components for operation. It serves as a direct functional alternative to traditional three-terminal linear regulators, offering significantly reduced heat dissipation needs in power management designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Pin-to-pin compatible replacements include the Texas Instruments LM2576SX-5.0/NOPB and the LM2576S-5.0. Verify that substitute parts meet the same 3A current rating and 40V maximum input voltage specifications.