LP873244RHDRQ1

Overview

The LP873244RHDRQ1 is an automotive-grade PMIC from the LP8732xx-Q1 family, integrating two high-current buck converters and two linear regulators. It operates within a 2.8 V to 5.5 V input range and delivers up to 2 A per buck channel. The device supports output voltages from 700 mV to 3.36 V for switching outputs and includes LDOs with 300 mA capability. Packaged in a 28-pin VQFN (5x5 mm) suitable for SMD/SMT mounting, it functions between -40°C and +125°C ambient temperatures.

Feature Summary

• Integrates dual 2-A synchronous buck converters and dual low-dropout linear regulators in a single compact package
• AEC-Q100 qualified for Grade 1 with extended temperature range support from -40°C to +125°C
• Supports flexible output voltage configurations via external resistor networks for both switching and linear channels

Applications

• Automotive infotainment systems requiring multiple regulated power rails
• Telematics control units needing high-efficiency step-down conversion
• Body control modules utilizing integrated linear regulation for noise-sensitive circuits

Procurement Notes

Verify component authenticity through authorized Texas Instruments distributors or certified partners. Confirm the specific suffix RHDRQ1 matches the required 28-VQFN package and automotive qualification grade. Check datasheet revisions for any pinout or electrical characteristic updates before finalizing procurement specifications.

Selection Notes

Select this component when designing automotive electronics requiring dual high-current buck stages alongside auxiliary linear regulation. Ensure input voltage stays within the 2.8 V to 5.5 V window. Verify thermal management requirements for the VQFN-28 package under maximum load conditions at elevated ambient temperatures up to 125°C.

Part Context

This part belongs to the LP8732xx-Q1 series of specialized power management ICs designed for automotive applications. It complements other variants like LP873200 and LP873245 by offering a combined solution of switching and linear regulation, reducing bill-of-materials count compared to discrete implementations.

Replacement Considerations

Direct substitutes include LP873245RHDRQ1 and LP873200RHDRQ1 from the same family. Verify output current capabilities and voltage ranges match design requirements before swapping.