LMR14050SDDAR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14050SDDAR is a SIMPLE SWITCHER synchronous step-down DC/DC converter from Texas Instruments. It supports an input voltage range of 4V to 40V and delivers up to 5A output current. The adjustable output voltage spans from 800mV to 28V. Operating with a fixed switching frequency of 2.2MHz, it achieves high efficiency in a compact SO-PowerPAD-8 package. The device features a typical quiescent current of 40µA and operates within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency across load ranges
• Fixed 2.2MHz switching frequency enables small external component size
• Built-in protection mechanisms including overcurrent and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive infotainment systems
• Communication equipment power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when ordering. Confirm the SO-PowerPAD-8 footprint matches your PCB layout requirements. Ensure input capacitors are rated for at least 40V to handle maximum supply voltages safely. Check datasheet for thermal pad soldering guidelines to maintain optimal heat dissipation performance.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part for applications requiring a 5A current capability with a wide input voltage range up to 40V. The fixed 2.2MHz frequency is suitable for space-constrained designs needing minimal passive components. Consider the 40µA quiescent current for standby power efficiency requirements. Verify that the 800mV minimum output voltage meets your system's lowest rail needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LMR14050 family of SIMPLE SWITCHER regulators. It shares core topology with variants like LMR14030 but offers higher current capacity. The series is designed for robust performance in automotive and industrial environments. It utilizes Texas Instruments' integrated power stage technology for simplified design.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14050SDDARQ1 is the automotive qualified version of this regulator. LMR14050SDDARG4 is a lead-free variant within the same product line. Both offer identical electrical specifications and pinouts for direct substitution.