LMR51406XDBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51406XDBVR is a synchronous buck converter from Texas Instruments, housed in a SOT-23-6 package. It supports an input voltage range of 4 V to 42 V and delivers up to 600 mA output current. The adjustable output voltage spans from 800 mV to 28 V. Operating with a fixed switching frequency of 1.1 MHz, the device features a quiescent current of 420 uA and operates within a junction 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
• Wide 4 V to 42 V input voltage range accommodates various supply sources
• Extended operating junction temperature range up to 150°C

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Battery-powered equipment power management
• Embedded system voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'X' against the official datasheet to confirm pinout or functional variations compared to standard variants. Ensure the component meets required environmental specifications for the target application. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit products. Confirm package type matches the design layout requirements.

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 output current capabilities. The fixed 1.1 MHz frequency is suitable for designs prioritizing small passive component size over ultra-low noise. Consider the thermal performance in the SOT-23-6 package relative to the expected load conditions and ambient temperature constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR5140x family of SIMPLE SWITCHER converters. These devices are designed for space-constrained applications requiring high efficiency. The family shares common control architectures but varies in current rating and input voltage limits. The LMR51406XDBVR specifically targets mid-range current needs within the broader portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LMR5140x series variants such as LMR51403 or LMR51406 without the X suffix if pin compatibility is confirmed. Verify that alternative parts match the 42 V input limit and 600 mA current capability.