LP873221RHDRQ1

$1.69

Description：AUTOMOTIVE - MULTI PHASE
Series：*
Mfr：Texas Instruments
Package：Bulk

SKU:653ba7e26be6 Category: Voltage Regulators - Linear + Switching Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：AUTOMOTIVE - MULTI PHASE
Series：*
Mfr：Texas Instruments
Package：Bulk
Topology：-
Number of Outputs：-
Frequency - Switching：-
Voltage/Current - Output 1：-
Voltage/Current - Output 2：-
Voltage/Current - Output 3：-
w/LED Driver：-
w/Supervisor：-
w/Sequencer：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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LP873221RHDRQ1

Overview

The LP873221RHDRQ1 is an automotive-grade PMIC featuring two 2-A buck converters and two linear regulators. It operates within a 2.8 V to 5.5 V input range, providing adjustable outputs from 0.7 V to 3.36 V for the buck channels. Designed for TDA3x processors, it integrates I2C control, power sequencing, and spread-spectrum clock generation. The device supports -40°C to +125°C operation in a 28-VQFN package.

Feature Summary

Integrates dual high-current buck converters with dual LDOs for processor power domains
Features dynamic thermal regulation via internal foldback current limiting and adaptive frequency scaling
Supports I2C control, power good signals, and programmable power sequencing
Includes spread-spectrum clock generation capability to reduce EMI

Applications

TDA3x processor power management systems
Automotive infotainment and ADAS applications
High-reliability automotive electronic control units

Procurement Notes

Verify the specific suffix RHDRQ1 matches the required tape-and-reel packaging format and AEC-Q100 qualification status. Confirm that the 28-VQFN footprint aligns with the target PCB design. Ensure the order quantity meets the manufacturer's standard reel size requirements for production runs.

Selection Notes

Select this component when designing for Texas Instruments TDA3x processors requiring integrated buck and LDO solutions. It is suitable for applications needing precise voltage regulation, thermal protection, and EMI reduction through spread-spectrum features in automotive environments.

Part Context

This part belongs to the LP8732 series of specialized PMICs designed for automotive SoCs. It consolidates multiple power rails into a single compact package, reducing board space and simplifying the power architecture for complex automotive processing platforms.