LM2576HVSX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVSX-ADJ/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator in a TO-263-5 surface-mount package. It supports an input voltage range of 4V to 60V and delivers up to 3A output current. The adjustable output voltage spans from 1.23V to 57V with a switching frequency of 52kHz. Operating junction temperature ranges from -40°C to +125°C, featuring internal thermal shutdown and fixed-frequency current mode control for stable performance.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch eliminates the need for external blocking diodes
• Fixed 52kHz switching frequency reduces required passive component size
• Internal thermal shutdown protects against overheating under fault conditions
• Current mode control ensures fast transient response and loop stability

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures requiring high input voltages
• Efficient buck conversion for battery-powered systems
• Pre-regulator stages for downstream linear regulators
• Industrial control system power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance status. Ensure the 'SX' designation matches the required TO-263-5 tape-and-reel packaging format. Confirm the manufacturer source is Texas Instruments or authorized distributors to avoid counterfeit components. Cross-reference the full part number against official TI databases for accurate datasheet alignment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard regulator limits but remain below 60V. The adjustable output allows customization for specific load requirements without changing the IC. Consider the TO-263-5 package for adequate thermal dissipation at 3A loads. Verify that the 52kHz frequency aligns with electromagnetic interference constraints in the target design.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2576HV series, designed for high-voltage step-down applications. It simplifies power supply design by integrating the controller and power switch into a single monolithic IC. The SIMPLE SWITCHER architecture minimizes external component count compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576HVS-ADJ/NOPB is the equivalent through-hole variant offering identical electrical specifications.