LMR51406YFDBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51406YFDBVR is a synchronous buck converter from Texas Instruments, housed in a SOT-23-6 package. It operates with an input voltage range of 4 V to 42 V and delivers up to 600 mA output current. The device supports adjustable output voltages from 800 mV to 28 V. Key electrical parameters include a fixed switching frequency of 1.1 MHz, a typical quiescent current of 420 uA, and a shutdown supply current of 38 uA. It functions within a temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency in a compact footprint
• Fixed 1.1 MHz switching frequency enables the use of small external components
• Extended junction temperature rating supports operation in demanding thermal environments

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial control systems
• Power distribution networks in automotive electronics
• Battery-powered equipment requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix YFDBVR against the manufacturer datasheet to confirm pinout and thermal characteristics. Ensure the application circuit accounts for the 42 V maximum input rating and the 150°C operating limit. Confirm RoHS compliance status through official documentation before integration into regulated products.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 42 V is required alongside moderate current delivery. The SOT-23-6 package suits space-constrained designs. Consider the 1.1 MHz frequency for balancing component size against electromagnetic interference requirements compared to lower frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SIMPLE SWITCHER family, designed for ease of implementation with minimal external components. It serves as a monolithic solution for DC/DC conversion, integrating power switches and control logic to simplify board layout and reduce design time for engineers developing compact power supplies.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check the LMR51406 series for variants with different thermal grades or packaging options. Verify compatibility with existing PCB footprints if substituting with other SOT-23-6 regulators from the same manufacturer.