LM2575T-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575T-5.0/NOPB is a monolithic integrated circuit step-down switching voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates with an input voltage range of 4V to 40V and provides a fixed 5.0V output at up to 1A load current. The device utilizes a TO-220-5 through-hole package and features a typical switching frequency of 52kHz. Internal compensation allows for minimal external component usage, while built-in protections include thermal shutdown and cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology with internal oscillator and frequency compensation
• Fixed 5.0V output with ±4% accuracy under specified conditions
• Built-in thermal shutdown and cycle-by-cycle current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulator stages for switching regulators
• Efficient linear regulator replacements in low-to-medium power applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free and RoHS compliance. Confirm the TO-220-5 package matches your PCB footprint requirements. Ensure the fixed 5.0V output aligns with system voltage needs, as other variants exist within the LM2575 series. Cross-reference the manufacturer part number against official TI documentation to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck converter is required in a through-hole package. It serves as a direct replacement for older linear regulators where efficiency and thermal management are critical. Consider the 52kHz switching frequency for inductor sizing and EMI constraints. Verify input voltage does not exceed the 40V maximum rating during transient events.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of SIMPLE SWITCHER power converters. The 'T' suffix denotes the TO-220-5 through-hole package, distinguishing it from surface-mount variants like the LM2575SX. The series is designed for ease of use with minimal external components, offering a balance between performance and simplicity for general-purpose DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-5.0/NOPB is functionally equivalent to LM2575T-5.0. Other pin-compatible options include LM2575HV-5.0 for higher input voltage ranges.