LM2576HVSX-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVSX-5.0/NOPB is a monolithic integrated circuit from the LM2576HV series, functioning as a step-down switching voltage regulator. It operates with an input voltage range of 4 V to 63 V and provides a fixed 5 V output capable of driving up to 3 A 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 operation temperatures from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated fixed-frequency oscillator for simplified design
• Built-in thermal shutdown and cycle-by-cycle current limiting
• External shutdown pin for low standby power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Pre-regulators for linear post-regulator modules
• Efficient buck converters for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' indicates lead-free and RoHS compliance. Confirm the 'SX' designation corresponds to the TO-263-5 surface mount package. Ensure the '-5.0' variant matches the required 5 V fixed output specification. Cross-reference the manufacturer part number against official Texas Instruments documentation to validate authenticity and revision status before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high input voltages up to 63 V are required compared to standard LM2576 variants limited to 40 V. Choose the SMD TO-263-5 package for board space efficiency over through-hole options. Consider the 52 kHz switching frequency for balancing component size and efficiency requirements in moderate-power applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576HV family, designed as a high-voltage alternative to the standard LM2576 series. It offers similar functionality but extends the maximum input voltage capability, allowing direct conversion from higher voltage rails without additional pre-regulation stages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576HVS-5.0/NOPB (Through-Hole TO-220 equivalent)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by this regulator?

The LM2576HVSX-5.0/NOPB supports a maximum input voltage of 63 V.

Does this device include protection features?

Yes, it includes thermal shutdown and cycle-by-cycle current limiting for fault protection.