LP873222RHDTQ1

Overview

The LP873222RHDTQ1 is an automotive power management IC featuring two high-current buck converters and two low-dropout linear regulators. It operates within a 2.8 V to 5.5 V input voltage range and supports output voltages from 0.7 V to 3.36 V for the DC/DC channels with up to 2 A current capability. The LDO channels provide outputs from 0.8 V to 3.3 V at 300 mA. Integrated into a 28-pin, 5 mm × 5 mm VQFN package, it complies with AEC-Q100 Grade 1 standards for operation between -40°C and +125°C.

Feature Summary

• Integrates dual 2-A buck converters and dual 300-mA LDOs in a compact footprint
• Supports remote voltage sensing to compensate for load point IR drops
• Features programmable startup sequencing and soft-start ramp rates
• Includes comprehensive protection against overcurrent, short circuits, and thermal events

Applications

• Automotive infotainment systems
• Digital cockpit controller power distribution
• Telematics control unit power supplies
• ADAS sensor module power regulation

Procurement Notes

Verify the specific suffix RHDTQ1 corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the device meets the necessary AEC-Q100 reliability standards for the target automotive application environment. Ensure compatibility with the intended I²C communication protocol speeds during system integration.

Selection Notes

Select this component when designing systems requiring four independent regulated rails from a single automotive-grade package. It is suitable for applications needing high efficiency via auto PWM/PFM modes and precise voltage regulation through remote sense capabilities. Consider the 2 MHz switching frequency for balancing EMI performance against passive component size requirements.

Part Context

This part belongs to the LP8732x-Q1 family of multi-output PMICs designed specifically for demanding automotive environments. It consolidates multiple discrete regulator functions into a single integrated circuit, reducing board space and simplifying power tree design. The device is engineered to meet strict automotive reliability and temperature endurance specifications.

Replacement Considerations

LP873222RHDRQ1 is a parameter-equivalent alternative available in reel packaging.