LP87332ARHDRQ1

Overview

The LP87332ARHDRQ1 is an automotive-grade PMIC featuring two high-current buck converters and two low-dropout regulators. It operates within a 2.8 V to 5.5 V input range, supporting output voltages from 0.7 V to 3.36 V for the buck channels and 0.8 V to 3.3 V for LDOs. The device provides up to 3 A per buck output and 300 mA per LDO output. Packaged in a 28-VQFN (5x5 mm) with wettable flanks, it meets AEC-Q100 standards and functions across -40°C to +125°C.

Feature Summary

• Integrates dual 3-A synchronous buck converters and dual 300-mA LDOs in a single compact package
• Features wettable flank technology on the 28-VQFN package to enable automated optical inspection of solder joints
• Complies with AEC-Q100 qualification for robust performance in demanding automotive environments

Applications

• Automotive infotainment systems requiring multiple regulated voltage rails
• Digital cockpit modules needing high-efficiency power distribution
• ADAS sensor interfaces utilizing mixed switching and linear regulation topologies

Procurement Notes

Verify the specific suffix 'ARH' against the manufacturer's official datasheet to confirm the exact temperature grade and package variant. Ensure that the ordering information matches the intended application requirements for automotive reliability standards. Cross-reference the part number with the latest Texas Instruments documentation to validate current production status and availability constraints before finalizing procurement plans.

Selection Notes

Select this component when designing automotive circuits that require integrated high-current buck conversion alongside precise LDO regulation. The 28-VQFN footprint with wettable flanks facilitates reliable surface-mount assembly and inspection. Consider the 2.8 V to 5.5 V input window and the specific output current capabilities of each channel to ensure compatibility with the target system's power budget and thermal management strategy.

Part Context

This device belongs to the LP8733 series of specialized power management ICs designed for automotive applications. It consolidates multiple power stages into a single solution, reducing board space compared to discrete components. The integration of both switching and linear regulators allows for optimized efficiency and noise performance in complex electronic architectures.

Replacement Considerations

LP87332DRHDRQ1 is a parameter-equivalent alternative within the same family.