LMR51420XFDDCR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51420XFDDCR is a synchronous buck converter from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 36 V and delivers up to 2 A of output current. The device supports adjustable output voltages from 600 mV to 36 V. Key electrical specifications include a quiescent current of 40 uA and a switching frequency of 500 kHz. It functions within a temperature range of -40°C to +150°C and is housed in a SOT-23-THIN-6 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Fixed internal switching frequency simplifies external component selection
• Wide input voltage range accommodates various power sources
• Compact thin package design suitable for space-constrained applications

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for embedded systems
• Battery-powered devices requiring efficient step-down conversion
• Communication infrastructure power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and tape/reel specifications. Confirm RoHS compliance status through official manufacturer documentation before procurement. Check for moisture sensitivity levels and recommended storage conditions. Ensure compatibility with existing PCB footprint designs for the SOT-23-THIN-6 package. Validate thermal performance requirements against the specific application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 500 kHz frequency is required to minimize electromagnetic interference filtering needs. Choose the SOT-23-THIN-6 package for applications prioritizing minimal board area over maximum current handling. Consider the 40 uA quiescent current for standby power budgets. Evaluate thermal dissipation capabilities given the small package size at higher load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR51420 series of synchronous buck converters. It shares architectural similarities with other members like the LMR51420YDDCR but differs in package type and specific operational parameters. The series is designed for simple implementation with minimal external components while maintaining robust performance across wide input voltage ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR51420YDDCR offers similar electrical characteristics but utilizes a different package configuration. Verify pinout compatibility and thermal performance differences before substitution. Other series members may offer varying current ratings or switching frequencies.