LM2576HVT-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVT-5.0/NOPB is a Texas Instruments step-down switching voltage regulator from the SIMPLE SWITCHER family, designed for high-voltage input applications. It operates with an input voltage range of 4 V to 63 V and provides a fixed 5.1 V output at up to 3 A load current. The device utilizes a buck topology with a fixed internal switching frequency of 52 kHz. It is housed in a TO-220-5 through-hole package, supporting operation across an extended temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch capable of delivering 3 A continuous output current
• Fixed internal oscillation frequency eliminates external timing component requirements
• Built-in thermal shutdown circuitry protects against excessive junction temperatures
• Onboard reference voltage ensures tight output voltage regulation accuracy

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures requiring high input voltage tolerance
• Pre-regulator stages for downstream switching regulators
• Battery-powered systems utilizing high-voltage source configurations
• Industrial control equipment power management modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation to confirm the lead-free (NOPB) status and ensure compatibility with RoHS directives. Confirm the TO-220-5 through-hole package variant matches the intended PCB mounting requirements. Cross-reference the manufacturer datasheet for detailed thermal dissipation guidelines and recommended external component specifications to ensure reliable system performance.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from a high-voltage input source exceeding standard low-voltage regulator limits. The integrated power switch simplifies design by removing the need for external discrete transistors. Consider the thermal resistance characteristics of the TO-220 package for adequate heat sinking solutions under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576HV series, which extends the functionality of the standard LM2576 to handle higher input voltages. The HVT suffix indicates a through-hole package version within the high-voltage lineup. It serves as a robust solution for converting unregulated or wide-range DC inputs into stable regulated outputs for various electronic loads.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576T-5.0/NOPB offers identical electrical specifications but utilizes a different package configuration.