LM2576-5.0WU

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576-5.0WU is a fixed-output step-down switching regulator IC manufactured by Microchip Technology. It provides a stable 5V output with a maximum current capacity of 1A, housed in a TO-263-5 surface-mount package. The device operates within an input voltage range of 4V to 40V and utilizes a fixed internal oscillator frequency of 52kHz. Designed for high efficiency, it incorporates thermal shutdown and current limit protection features.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology with fixed 5V output
• Internal 52kHz oscillation for simplified design
• Built-in thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient pre-regulator for linear regulators
• On-card switching regulators
• Positive to negative converter (inverting Buck-Boost)
• Isolated Flyback Converter using minimum number of external components

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'WU' against official Microchip documentation to confirm the exact package type and pinout configuration. Ensure compatibility with required PCB footprint dimensions for the TO-263-5 variant. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar series components or alternative packaging options.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a wide input voltage range up to 40V. It is suitable for applications prioritizing simplicity and cost-effectiveness over variable output flexibility. Consider the 1A output current limit and 52kHz switching frequency constraints during circuit design to ensure adequate thermal management and component selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of monolithic integrated circuits designed for step-down switching regulators. The series offers both fixed and adjustable output versions capable of driving significant loads. The LM2576-5.0WU specifically addresses applications requiring a reliable 5V supply with minimal external component count, leveraging the series' established reliability and protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576WT

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2576-5.0WU?

The maximum input voltage is 40V.

Does the LM2576-5.0WU include protection features?

Yes, it includes thermal shutdown and current limit protection.