LMR51425SDRRR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51425SDRRR 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 temperature range of -40°C to +125°C. Packaged in a compact WSON-12 footprint, it integrates essential protection mechanisms for robust power management applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency across load ranges
• Adjustable switching frequency allows optimization for specific design constraints
• Low quiescent current supports extended battery life in standby modes
• Compact WSON-12 package facilitates dense PCB layout designs

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 limitations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix RRR to confirm reel packaging specifications. Ensure compatibility with the target input voltage range of 4 V to 36 V during circuit design. Confirm thermal requirements for the WSON-12 package under maximum load conditions. Check for RoHS compliance status if required by specific regional regulations. Validate that the selected switching frequency aligns with external component availability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 36 V is required alongside moderate output current capabilities. Consider the adjustable frequency feature if electromagnetic interference mitigation is critical. Evaluate the thermal performance in the WSON-12 package against expected ambient temperatures. Compare quiescent current specifications against system sleep mode requirements. Ensure the output voltage range meets the downstream load specifications.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR51425 series of synchronous buck converters from Texas Instruments. It shares architectural similarities with other members like the LMR51450 but differs in output current capacity. The series emphasizes simplicity and reliability for industrial and commercial applications. It utilizes the SIMPLE SWITCHER platform for ease of design implementation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR51425SDDR is a pin-compatible alternative within the same series offering similar electrical characteristics. Verify package dimensions and thermal pad configurations before substitution. Ensure switching frequency ranges and protection features match the original design requirements.