LM2576HVS-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVS-5.0/NOPB is a monolithic integrated circuit from the Texas Instruments SIMPLE SWITCHER series, functioning as a high-voltage step-down switching regulator. It operates with an input voltage range of 4 V to 63 V and provides a fixed 5 V output capable of delivering up to 3 A of load current. The device utilizes a buck topology with a typical switching frequency of 52 kHz. It is housed in a TO-263-5 surface-mount package and supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch rated for input voltages up to 63 V
• Fixed 5 V output with 3 A continuous current capability
• Built-in thermal shutdown and cycle-by-cycle current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Efficient step-down conversion from battery or bus voltages
• Pre-regulator stages for downstream switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' indicates lead-free and RoHS compliance. Confirm the 'S' variant denotes the surface-mount TO-263 package distinct from through-hole versions. Ensure the '-5.0' designation matches the required 5 V fixed output specification for the target design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard 40 V limits but remain below 63 V. The fixed 5 V output simplifies design by eliminating external feedback resistors. Consider the TO-263 package for adequate thermal dissipation during high-current operation without requiring extensive heatsinking.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576HV family, designed as a drop-in replacement for traditional linear regulators to reduce size and cost. The SIMPLE SWITCHER architecture integrates the controller, driver, and high-voltage switch into a single IC, minimizing external component count compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576HVSX-5.0/NOPB: Surface-mount equivalent in TO-263-5 package.