LM2575S-ADJ-TI

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575S-ADJ is a 1-A step-down switching regulator from Texas Instruments, operating at a fixed 52 kHz frequency. It accepts an input voltage range of 4 V to 40 V and provides an adjustable output voltage between 1.23 V and 37 V. The device utilizes a TO-263-5 surface-mount package and supports an operating temperature range from -40 °C to +125 °C. Key electrical specifications include a maximum static current of 10 mA and a typical efficiency of 77%.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient step-down regulation
• Internal oscillator enables fixed-frequency operation without external timing components
• Built-in thermal shutdown circuitry protects against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures requiring local voltage regulation
• Battery-powered systems utilizing step-down conversion
• Post-regulation stages for standard 5-V bus supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) to confirm lead-free compliance and RoHS status. Confirm the package variant matches the required footprint, as the S designation indicates TO-263-5. Ensure the ordering code aligns with the intended tape-and-reel or tube packaging format for automated assembly processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-channel, high-efficiency buck regulator is needed for inputs up to 40 V. The adjustable output allows flexibility for various load requirements within the 1.23 V to 37 V range. Consider the thermal performance in the TO-263 package for applications with significant power dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of SIMPLE SWITCHER regulators, which are designed for ease of use and broad application compatibility. The series includes fixed-voltage options and high-voltage variants, providing a standardized solution for general-purpose DC-DC conversion tasks across industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575S-ADJ/NOPB is the direct lead-free equivalent. LM2575HVS-ADJ serves as a replacement for higher input voltage requirements up to 75 V.