LM2575-3.3YWM-TR

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-3.3YWM-TR is a monolithic integrated circuit step-down (buck) switching regulator manufactured by Microchip Technology. It provides a fixed 3.3V 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 switching frequency. Designed for surface-mount applications, it is housed in a 24-SOIC package. The component supports a junction temperature range of -40°C to 125°C and includes internal frequency compensation and a 150mA driver oscillator.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 3.3V output configuration eliminates external feedback resistor requirements
• Integrated thermal shutdown and current limiting protection mechanisms
• Simplified design architecture requiring minimal external components
• High efficiency performance across wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital logic circuits
• Pre-regulation stage for downstream linear regulators
• Battery-powered equipment power supply conditioning
• General-purpose DC-DC conversion in embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as specifications may vary by production batch. Ensure the supplier provides valid traceability documentation for the Microchip Technology part number. Cross-reference the specific date code against project lifecycle requirements to avoid obsolescence risks during procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a simple, cost-effective buck topology with a fixed 3.3V rail. It is suitable for applications where moderate switching frequencies are acceptable to reduce passive component size. Consider the 24-SOIC package constraints for PCB layout. Evaluate thermal dissipation needs given the 1A continuous current capability and standard package thermal resistance characteristics.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of simple switch-mode power supply integrated circuits. The series offers both fixed and adjustable output versions capable of driving 1A loads. The LM2575-3.3YWM-TR specifically denotes the fixed 3.3V variant in a SOIC-24 package with tape-and-reel delivery. It serves as a fundamental building block for efficient DC-DC step-down conversions in industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575-3.3YWM is the non-tape-and-reel equivalent version. LM2592HVS-3.3/NOPB is a documented parameter-equivalent alternative from Texas Instruments offering similar functionality.