LMR51425FNDRRR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51425FNDRRR is a synchronous buck converter from Texas Instruments operating within a 4 V to 36 V input voltage range. It delivers up to 2.5 A of output current with an adjustable output voltage spanning from 800 mV to 28 V. The device supports switching frequencies between 200 kHz and 1.1 MHz, enabling flexible design optimization for size and efficiency. It features a low quiescent current of 25 uA and operates reliably across a junction temperature range of -40°C to +125°C. Packaged in a compact 12-WSON format, it integrates protection mechanisms including thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency across load ranges
• Adjustable switching frequency allows optimization for component size or noise performance
• Low quiescent current minimizes power consumption during light-load conditions
• Built-in thermal shutdown protects the device under overload or overheating scenarios

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Point-of-load regulation for microprocessors and FPGAs
• Battery-powered equipment needing efficient step-down conversion
• Embedded systems with strict space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'FNDRRR' matches the required package type and tape-and-reel quantity. Confirm RoHS compliance status through the official datasheet before integration. Ensure input voltage specifications align with system requirements to avoid overstress. Check for moisture sensitivity level handling instructions if storage conditions vary.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages reach up to 36 V and moderate output currents around 2.5 A are sufficient. The adjustable frequency feature is critical if EMI constraints differ from standard designs. Compare against higher-current variants like the LMR51450 if load demands exceed 2.5 A. Consider the WSON package footprint compatibility with existing PCB layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SIMPLE SWITCHER family, designed for ease of use with minimal external components. It complements other regulators in the LMR series by offering a balance between performance and simplicity. The WSON package provides a small footprint suitable for dense board designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR51425SDRRR offers similar electrical characteristics but may differ in package details or manufacturing lot specifications. Verify pinout compatibility and thermal performance before substitution.