LM2576HVS-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVS-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It operates within an input voltage range of 4 V to 63 V and provides a fixed 12 V output with a maximum current capacity of 3 A. The device utilizes a buck topology and functions at a switching frequency of 52 kHz. It is housed in a TO-263-5 surface-mount package (DPAK/TO-263) and supports thermal shutdown protection. The component is rated for operation between -40°C and +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller and power switch for simplified design
• Fixed 12 V output option eliminates external resistor networks
• Built-in thermal shutdown protects against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Battery-powered systems requiring high input voltage tolerance
• General-purpose DC-DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'HVS' confirms the high-voltage variant and '12' indicates the fixed 12 V output. Ensure the '/NOPB' designation aligns with RoHS compliance requirements. Confirm the TO-263-5 package matches your PCB footprint constraints. Cross-reference the datasheet revision date to ensure compatibility with latest thermal specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12 V output is required from inputs up to 63 V. The 3 A current rating suits moderate load applications. Consider the TO-263-5 package for adequate heat dissipation without additional heatsinks in many scenarios. Compare against adjustable variants if flexible output voltages are needed instead.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2576HV series, which extends the standard LM2576 family to handle higher input voltages. The 'S' suffix denotes the surface-mount DPAK/TO-263 package, distinguishing it from through-hole TO-220 versions. It is part of Texas Instruments' SIMPLE SWITCHER line, emphasizing ease of use with minimal external components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576HVSX-12/NOPB is a tape-and-reel version of the same electrical specification. LM2576T-12/NOPB offers identical performance but uses a through-hole TO-220-5 package.