LM2575HVS-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVS-12 is a monolithic integrated circuit step-down switching regulator from the Texas Instruments LM2575HV series. It operates as a buck converter with a fixed 12V output and supports up to 1A load current. The device features a wide input voltage range of 4V to 60V, enabling efficient replacement for linear regulators. It incorporates an internal 52kHz oscillator, requiring only four external components for operation. Key specifications include a maximum operating temperature of +125°C and a minimum of -40°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 12V output configuration simplifies design by eliminating external feedback resistors
• Internal frequency compensation and fixed-frequency oscillator reduce external component count
• Integrated thermal shutdown and per-cycle current limiting provide comprehensive fault protection

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient replacement for linear regulators in high-input voltage applications
• Point-of-load regulation for digital circuits requiring stable 12V supply
• Battery-powered systems utilizing wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and temperature grade. Ensure the ordering part number matches the required TO-263 or equivalent surface-mount variant. Cross-reference datasheet revisions to validate electrical characteristics and pinout compatibility before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required without external programming resistors. It is suitable for designs needing 1A continuous current with high efficiency. Consider the 52kHz switching frequency for inductor sizing constraints. Verify that the application environment stays within the specified -40°C to +125°C junction temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2575HV family of simple switchers designed for high-voltage step-down conversion. Unlike the standard LM2575, the HV version supports higher input voltages up to 60V. The 'S' suffix typically denotes a surface-mount package variant, distinguishing it from through-hole options like the LM2575T series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LM2575HV variants with fixed 12V outputs, such as LM2575HV-12/NOPB. Verify pinout compatibility and thermal performance requirements when replacing with generic buck converters.