LP873220RHDRQ1

Overview

The LP873220RHDRQ1 is an automotive-grade PMIC featuring two high-current buck converters and two linear regulators. It operates within a 2.8 V to 5.5 V input range, supporting output voltages from 700 mV to 3.36 V for the buck channels and up to 3.3 V for LDOs. The device provides 2 A current per buck converter and 300 mA per LDO channel. Packaged in a 28-pin VQFN with wettable flanks, it meets AEC-Q100 standards and functions between -40°C and +125°C.

Feature Summary

• Integrates dual high-current synchronous buck converters with dual low-dropout linear regulators in a single compact package.
• Features wettable flank technology on the VQFN-28 package to enable automated optical inspection of solder joints.
• Complies with AEC-Q100 qualification standards for automotive reliability and extended temperature operation.

Applications

• Automotive infotainment systems
• Digital cockpit domain controllers
• Advanced driver-assistance systems (ADAS) power distribution

Procurement Notes

Verify the specific suffix 'RHDR' confirms the reel packaging format and lead finish. Confirm the 'Q1' designation aligns with required automotive quality standards. Ensure the design accounts for the 28-VQFN thermal pad requirements during assembly. Cross-reference the latest datasheet revision for any pinout or electrical parameter updates before finalizing the bill of materials.

Selection Notes

Select this component when a combined solution for high-current digital loads and sensitive analog rails is required. The dual-buck architecture supports efficient voltage translation from battery lines, while the integrated LDOs provide clean power for noise-sensitive peripherals. The 28-VQFN footprint offers a space-efficient alternative to discrete regulator designs.

Part Context

This part belongs to the LP8732-Q1 family of multi-output power management ICs designed for automotive applications. It complements other variants like the LP873222RHDRQ1 by offering a specific mix of switching and linear regulation capabilities tailored for complex electronic control units requiring multiple distinct voltage domains.

Replacement Considerations

LP873222RHDRQ1

FAQ

Does the LP873220RHDRQ1 include internal sequencing for its outputs?

No, the datasheet indicates that this specific variant does not feature internal hardware sequencers; external control or resistor programming may be required for startup timing.

What is the maximum operating junction temperature for this device?

The device is rated for an ambient operating temperature range up to +125°C, consistent with automotive grade specifications.