LM2574HVM-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVM-5.0 is a monolithic integrated circuit from the SIMPLE SWITCHER family, designed for high-voltage step-down switching regulator applications. It operates with an input voltage range of 4 V to 60 V and provides a fixed 5.0 V output at up to 500 mA. The device utilizes a buck topology with a typical switching frequency of 52 kHz. It is housed in a 14-pin SOIC-Wide package and supports operation temperatures from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch capable of handling input voltages up to 60 V
• Fixed internal oscillator eliminates the need for external timing components
• Includes thermal shutdown and current limit protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Pre-regulators for downstream switching regulators
• Efficient DC-to-DC conversion in industrial control equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'HVM' confirms the high-voltage variant and wide-body SOIC package. Ensure the '/NOPB' designation is present if lead-free compliance is required. Cross-reference the manufacturer part number against official Texas Instruments documentation to confirm pinout and electrical specifications match the design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard 40 V limits but remain below 60 V. The fixed 5.0 V output simplifies design by removing external feedback resistors. Consider the 500 mA output current capability and 52 kHz switching frequency for filter component sizing. Verify that the SOIC-Wide package fits the available PCB footprint.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574HV series, which extends the standard LM2574 functionality to higher input voltages. It shares the same SIMPLE SWITCHER architecture but features a robust power stage rated for 60 V inputs. The device is intended for designs where space savings and reduced external component count are prioritized over adjustable output flexibility.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574HVMX-5.0/NOPB: Identical functional equivalent in tape-and-reel packaging.