LM2575-3.3YWM

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-3.3YWM is a fixed-output step-down switching voltage regulator manufactured by Microchip Technology, belonging to the LM2575 series. It provides a fixed 3.3V output with a maximum current capability of 1A. The device operates within an input voltage range of 4V to 40V and utilizes a buck topology. Key electrical parameters include a standard switching frequency of 52kHz and a typical quiescent current of 5mA. The component is housed in a 24-SOIC surface-mount package and supports an operating junction temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed-frequency oscillator for simplified external component requirements
• Includes internal thermal shutdown and current limit protection circuits
• Features high-efficiency monolithic switching regulator design

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient step-down DC-DC conversion modules
• Pre-regulator stages for linear post-regulators
• Positive-to-negative voltage inversion circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'YWM' against the manufacturer's official datasheet to confirm the 24-SOIC package configuration and fixed 3.3V output specification. Ensure compliance with RoHS directives as indicated in the product documentation. Cross-reference the part number with authorized distributors to validate authenticity and check for any recent manufacturing changes or obsolescence notices.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required from an input voltage up to 40V. It is suitable for applications prioritizing simplicity over adjustable regulation, eliminating the need for external feedback resistors. Consider the 52kHz switching frequency for EMI management and ensure the SOIC-24 package fits the PCB layout constraints compared to TO-220 or TO-263 alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of switching regulators, which are widely recognized for their robust performance in industrial and commercial power supplies. The LM2575 series offers both adjustable and fixed voltage versions, with the YWM variant specifically denoting the surface-mount SOIC package option. It serves as a direct replacement for older discrete switching solutions in compact designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575-3.3BWM-TR (Microchip) offers identical electrical specifications but utilizes a tape-and-reel packaging format instead of tubes.