LM2575-5.0YWM

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-5.0YWM is a monolithic integrated circuit step-down switching regulator manufactured by Microchip Technology, belonging to the LM2575 series. It provides a fixed 5V output with a maximum load current of 1A. The device operates from an input voltage range of 4V to 40V and utilizes a fixed 52kHz internal oscillator. Designed for high efficiency, it requires minimal external components, typically four, to function as a buck converter. The component supports surface-mount installation in a 24-SOIC package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed-frequency oscillator and internal frequency compensation to simplify external circuit design.
• Includes built-in thermal shutdown and cycle-by-cycle current limiting for robust fault protection.
• Offers high conversion efficiency compared to traditional linear regulators, reducing heat dissipation requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient DC-to-DC step-down power supplies
• Pre-regulators for downstream linear regulators
• Positive-to-negative inverted switching converters

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix YWM confirms the 24-SOIC surface-mount package and fixed 5.0V output configuration. Confirm RoHS compliance status through official datasheets or manufacturer documentation, as environmental declarations may vary by production batch. Ensure the supplier source is authorized to guarantee component authenticity and traceability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output at up to 1A is required from an input voltage between 4V and 40V. The 24-SOIC package is suitable for surface-mount assembly processes. Consider the 52kHz switching frequency for inductor selection and EMI management. This part replaces older linear regulators where thermal performance and efficiency are critical constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator is part of the broader LM2575 family, which includes adjustable versions and other fixed voltage outputs. The LM2575 series is widely recognized for its simplicity and reliability in basic buck converter topologies. The YWM suffix specifically denotes the plastic small-outline package variant produced by Microchip Technology.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575-5.0WU (Microchip Technology) offers equivalent electrical specifications in a TO-263-5 surface-mount package. LM2575T-5.0/NOPB (Texas Instruments) provides a pin-compatible through-hole alternative in a TO-220-5 package.