LM2574MX-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2574MX-12 is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, designed for high-efficiency DC/DC conversion. It operates with an input voltage range of 4V to 40V and provides a fixed 12V output at up to 500mA. The device integrates a 52kHz switching frequency, enabling the use of compact external components. It features internal frequency compensation and current limiting for simplified design. The component is housed in a 14-pin SOIC package and supports operation across a temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a power switch rated for 0.5A continuous load current
• Includes internal frequency compensation for minimal external component count
• Features built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient step-down conversion
• General-purpose DC/DC converter modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout and electrical characteristics. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference with official TI documentation to validate RoHS compliance status and availability before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an input voltage between 4V and 40V. It is suitable for applications prioritizing simplicity and low component count over adjustable output flexibility. Consider the 500mA current limit and 52kHz switching frequency when designing the external inductor and capacitor values.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574 family of SIMPLE SWITCHER regulators, which are known for their ease of use and robust performance. The 'M' suffix indicates a plastic small-outline package (SOIC), while 'X' typically denotes tape-and-reel packaging. It serves as a cost-effective solution for medium-current step-down applications compared to linear regulators.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM2574MX-12/NOPB and LM2574M-12/NOPB. Verify that replacement parts maintain the same SOIC-14 footprint and electrical specifications. Check for any changes in lead-free status or packaging format if transitioning between NOPB and non-NOPB variants.