LM2575-12WT

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-12WT is a fixed-output step-down switching regulator manufactured by Microchip Technology. It provides a stable 12V output with a maximum current capacity of 1A. The device operates from an input voltage range of 4V to 40V and utilizes a fixed internal switching frequency of 52kHz. It is housed in a TO-263-5 surface-mount package, also known as D2PAK or TO-263BA, which includes five leads and a tab for thermal dissipation. The component supports junction temperatures up to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a monolithic buck converter topology with built-in frequency compensation and oscillator
• Includes internal current limiting and thermal shutdown protection circuits
• Requires minimal external components for standard operation

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient DC-to-DC step-down power supplies
• Pre-regulator stages for linear regulators
• Positive-to-negative voltage inversion circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'WT' against the official Microchip datasheet to confirm package type and temperature rating. Ensure compatibility with TO-263-5 footprints. Check RoHS compliance status and moisture sensitivity level before procurement. Confirm availability through authorized distributors only.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from a 4V to 40V input source. It is suitable for applications needing 1A load current with moderate efficiency requirements. Consider the TO-263-5 package for surface-mount assembly with adequate thermal management. Compare against adjustable variants if flexible output voltage is needed.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of simple-switcher regulators. The series is widely used for basic buck converter designs. The LM2575-12 variant specifically fixes the output at 12V. Other versions in the family offer different fixed voltages or adjustable outputs. The technology represents a mature solution for low-power DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2592HVS-12/NOPB (Texas Instruments) offers similar functionality with higher current capability. NCV2575D2T-12R4G (onsemi) is a direct pin-compatible alternative. Verify electrical parameters and package dimensions before substitution.