LMR51403YDBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51403YDBVR is a synchronous buck converter from Texas Instruments, housed in an SOT-23-6 package. It operates with an input voltage range of 4 V to 42 V and delivers up to 300 mA output current. The device supports adjustable switching frequencies between 400 kHz and 1.1 MHz, with a maximum output voltage of 28 V. Quiescent current is specified at 420 uA, while operating supply current reaches 38 uA. It functions within a temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a synchronous buck topology for efficient step-down conversion
• Supports wide input voltage ranges suitable for various power sources
• Includes shutdown functionality for power management control

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems
• Consumer electronics power supplies
• Embedded system voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix YDBVR against official datasheets to confirm package type and temperature rating. Ensure compatibility with required input voltage levels and thermal management strategies. Confirm RoHS compliance status through manufacturer documentation before integration into final designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for moderate current applications under 42V inputs. Compare quiescent current specifications against standby requirements. Evaluate thermal performance in the SOT-23-6 package relative to expected load conditions and ambient temperatures.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR51403 series of SIMPLE SWITCHER regulators. It shares architectural similarities with other devices in the family but differs in current capacity and input voltage limits. The series focuses on providing integrated solutions for space-constrained designs requiring reliable DC-DC conversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify that substitute parts meet identical electrical specifications and thermal constraints.