LM2574HVM-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574HVM-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, providing a fixed 12 V output with a maximum load current of 0.5 A. It operates within an input voltage range of 4 V to 60 V and features a typical switching frequency of 58 kHz. The device is housed in a 14-pin SOIC-Wide (D) package designed for surface-mount installation. It supports an operating temperature range from -40 °C to +125 °C and includes internal frequency compensation and a 150 mA standby current regulator.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology simplifies design by requiring only four external components
• Internal frequency compensation eliminates the need for external phase compensation networks
• Built-in 150 mA standby current regulator enables efficient battery-powered applications
• Fixed output voltage options available via single external resistor

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power systems
• Pre-regulator stages for switching regulators
• Battery-powered equipment requiring high efficiency
• General-purpose 12 V DC/DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance as per Texas Instruments specifications. Confirm the 'M' designation indicates the SOIC-Wide-14 package variant. Ensure the '-12' code matches the required 12 V fixed output voltage. Cross-reference the manufacturer part number against official TI databases to validate authenticity and current production status.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from an input source between 4 V and 60 V. The 0.5 A current limit suits low-power applications where simplicity and minimal external component count are priorities. Consider the SOIC-Wide-14 package for surface-mount assembly constraints. Verify thermal performance requirements given the 125 °C maximum junction temperature rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574HV family of SIMPLE SWITCHER regulators, which are designed for wide input voltage ranges up to 60 V. It serves as a drop-in replacement for older linear regulators in 12 V systems, offering significantly higher efficiency. The device integrates the control circuitry, driver, and protection features into a single monolithic IC.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2574HVMX-12/NOPB: Reel-packaged version of the same electrical specification and pinout.