LM2575-3.3BWM

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575-3.3BWM is a monolithic integrated circuit providing the active functions for a step-down (buck) switching regulator. Manufactured by Microchip Technology, this device delivers a fixed 3.3V output capable of driving a 1A load with excellent line and load regulation. It operates within an input voltage range of 4V to 40V at a standard switching frequency of 52kHz. The component utilizes pulse width modulation control and is housed in a 24-SOIC surface-mount package. It supports a junction temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck switching regulator topology for efficient DC-DC conversion
• Fixed 3.3V output configuration ensuring stable voltage delivery
• Capable of driving 1A loads with high efficiency and regulation
• Operates with a 52kHz internal oscillator for simplified external component requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for digital circuits
• Pre-regulator stages for switching regulators
• Efficient step-down conversion from higher bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'BWM' against official Microchip documentation to confirm the 24-SOIC package variant. Ensure compatibility with the required thermal management solutions for the SOIC-24 footprint. Confirm RoHS compliance status as manufacturing processes may vary by production lot. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar legacy or alternative package options.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with up to 1A current capability. It is suitable for designs needing a simple buck converter solution without adjustable feedback networks. Consider the 24-SOIC package constraints regarding PCB space and thermal dissipation. Verify that the input voltage range of 4V to 40V aligns with the system power supply specifications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of simple 1A step-down SMPS regulators. The series includes fixed voltage outputs such as 3.3V, 5V, and 12V, as well as adjustable versions. The LM2575-3.3BWM specifically denotes the fixed 3.3V version in the 24-pin SOIC package, distinguishing it from TO-263 variants like the LM2575-3.3WU.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575YWM is listed as a parameter equivalent replacement.