LMR14020SQDDARQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14020SQDDARQ1 is an automotive-grade synchronous buck converter from the SIMPLE SWITCHER family. It operates with an input voltage range of 4 V to 40 V and delivers a continuous output current of 2 A. The adjustable output voltage spans from 800 mV to 28 V. Integrated features include a fixed switching frequency of 2.2 MHz, low quiescent current of 40 µA, and thermal shutdown protection. It is housed in an 8-pin SO-PowerPAD package and meets AEC-Q100 standards for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated power stage enables compact design with minimal external component count.
• Fixed high-frequency switching reduces passive component size while maintaining efficiency.
• Low no-load supply current extends battery life in standby or sleep modes.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging systems
• Infotainment power distribution
• Instrument cluster regulation
• Body control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'Q1' confirms automotive grade status and AEC-Q100 certification. Ensure the 'S' indicates the SO-PowerPAD-8 package variant. Confirm RoHS compliance details via the official datasheet before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring a 40 V input tolerance and 2 A load capacity. The fixed 2.2 MHz frequency suits designs prioritizing small footprint over ultra-low noise. Verify that the thermal performance of the SO-PowerPAD package meets the system's heat dissipation requirements under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR14020 series of SIMPLE SWITCHER regulators. It shares core topology with non-automotive variants but includes enhanced testing and qualification for automotive durability. The series targets general-purpose step-down conversion in harsh electrical environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14020SSQDDARQ1: Identical electrical specifications and automotive qualification; differs only in tube packaging instead of reel/cut tape.

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LMR14020SQDDARQ1 a synchronous rectifier?

Yes, it integrates both high-side and low-side N-channel MOSFETs for improved efficiency.

What is the minimum operating input voltage?

The device supports an input voltage range starting from 4 V.