LM2574M-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574M-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 4 V to 40 V and provides a fixed 12 V output at up to 500 mA. The device utilizes a buck topology with a typical switching frequency of 58 kHz. It features low static current of 5 mA and includes thermal shutdown protection. The component is housed in a SOIC-Wide-14 package and supports operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller and power switch for simplified design
• Fixed internal feedback network ensures precise output regulation
• Thermal shutdown protection prevents damage during overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Pre-regulation for linear post-regulators
• Battery-powered equipment power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance as per manufacturer specifications. Ensure the 'M' designation matches the required SOIC-Wide-14 surface mount package variant. Cross-reference the full part number against official Texas Instruments documentation to confirm availability status and manufacturing lifecycle stage before finalizing procurement plans.

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 40 V. The 500 mA current limit suits moderate load applications. Consider the SOIC-Wide-14 package for surface mount assembly constraints. Verify that the 58 kHz switching frequency aligns with electromagnetic interference requirements and passive component size limitations in the target circuit design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574 family of SIMPLE SWITCHER regulators, which are known for ease of use and minimal external component count. The 'M' indicates the SOIC package, while '12' specifies the fixed 12 V output version. The '/NOPB' suffix denotes non-phosphorus bromide and lead-free construction, adhering to environmental standards.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible substitutes within the same family include LM2574M-5.0/NOPB (5 V output) or LM2574M-3.3/NOPB (3.3 V output). For higher input voltage capabilities, consider the LM2574HV series variants such as LM2574HVM-12/NOPB.