LM2575M-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575M-5.0 is a monolithic integrated circuit from the Texas Instruments SIMPLE SWITCHER family, designed as a step-down switching voltage regulator. It provides a fixed 5V output with a maximum load current of 1A. The device accepts an input voltage range from 4V to 40V and operates at a fixed internal switching frequency of 52kHz. Packaged in the TO-263-5 (D2PAK) surface-mount format, it integrates a 55V rated internal power switch. Key electrical specifications include an output voltage accuracy of ±4% under specified conditions and a typical quiescent current of 50μA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates all active components required for buck topology, minimizing external component count
• Includes built-in frequency compensation and fixed-frequency oscillator for simplified design
• Features thermal shutdown and cycle-by-cycle current limiting for robust fault protection
• Supports external shutdown control to minimize standby power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulator stages for switching regulators
• Efficient linear regulator replacements
• Battery-powered systems requiring high efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix matches the specific package variant required for your PCB footprint. Confirm RoHS compliance status through the manufacturer's official documentation or authorized distributor declarations. Ensure the selected part number corresponds to the correct temperature grade and output voltage tolerance before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required with up to 1A load capacity. It is suitable for designs needing a wide input voltage range up to 40V. Consider the TO-263-5 package for applications where surface-mount assembly is preferred but adequate thermal dissipation via copper plane connection is available without additional heatsinking.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of SIMPLE SWITCHER power converters. The 'M' suffix indicates the TO-263-5 surface-mount package. The '-5.0' designation specifies the fixed 5.0V output voltage option. This series is engineered to replace traditional three-terminal linear regulators, offering significantly higher efficiency and reduced heat generation in DC-DC conversion applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575SX-5.0/NOPB: Alternative surface-mount version from Texas Instruments.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575M-5.0?

The maximum input voltage is 40V.

Does the LM2575M-5.0 support adjustable output voltages?

No, the -5.0 suffix indicates a fixed 5.0V output. Adjustable versions use the -ADJ suffix.