LM2574HVN-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVN-12 is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It provides a fixed 12 V output with a maximum load current of 0.5 A. The device operates within an input voltage range of 4 V to 60 V and features a switching frequency of 58 kHz. It utilizes a PDIP-8 through-hole package and supports both buck and inverting topologies. The unit functions reliably across an operating temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic control circuitry simplifies design by requiring only four external components.
• Fixed internal oscillator ensures stable operation at a nominal 58 kHz switching frequency.
• Built-in thermal shutdown protects the device against excessive junction temperatures.
• Internal freewheeling diode eliminates the need for external rectifier components.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Battery chargers
• Pre-regulator circuits for switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix matches the required package type and output voltage tolerance. Confirm RoHS compliance status as indicated by the NOPB designation. Ensure the supplier source provides valid datasheets matching the LM2574HV series specifications. Cross-reference the manufacturer part number to avoid confusion with standard LM2574 variants lacking high-voltage capabilities.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed 40 V but remain below 60 V. Choose the HV variant over standard versions for higher input headroom. Consider the PDIP-8 package for through-hole assembly requirements. Evaluate the 0.5 A current limit against peak load demands to ensure adequate margin.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the LM2574HV family, which extends the input voltage capability of the standard LM2574 series. It shares functional similarities with the LM2574M and LM2574N series but offers enhanced input voltage tolerance up to 60 V. The device is part of Texas Instruments' SIMPLE SWITCHER line, emphasizing ease of use and compact design.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574HVMX-12/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2574HVN-12?

The maximum input voltage is 60 V.

Does the LM2574HVN-12 support inverting topology?

Yes, the device supports both buck (step-down) and inverting topologies.