Texas Instruments LP873220RHDRQ1

Overview

LP873220RHDRQ1 from Texas Instruments is an automotive PMIC for J6 entry processors, camera modules, radar platforms, and processor-based embedded systems. The device integrates two 2A buck converters and two 300mA linear regulators, giving compact vehicle electronics four regulated rails from a 2.8V to 5.5V input.

As part of the LP873220-Q1 product family, LP873220RHDRQ1 combines I2C-compatible control, two high-current bucks, two LDO rails, remote voltage sensing, programmable slew rate, spread-spectrum EMI reduction, phase interleaving, GPO functions, interrupt reporting, programmable PGOOD, and wettable-flank VQFN packaging. For engineers reviewing the LP873220RHDRQ1 datasheet, LP873220RHDRQ1 pinout, LP873220RHDRQ1 application, or LP873220RHDRQ1 equivalent, this device is widely used in automotive cameras, radar modules, J6 entry processor boards, infotainment subsystems, industrial vision modules, and compact multi-rail embedded platforms.

Technical Context

In processor and vehicle sensor modules, LP873220RHDRQ1 uses two 2MHz synchronous buck regulators to generate high-current core or I/O rails from a 2.8V to 5.5V input. Each buck supports 0.7V to 3.36V output and up to 2A current, with remote sensing to compensate IR drop at the point of load.

The two LDOs accept 2.5V to 5.5V input and provide 0.8V to 3.3V outputs at up to 300mA each for auxiliary, low-noise, or always-on rails. I2C control, programmable slew rate, interrupt functions, GPO outputs, and PGOOD behavior help the host processor manage startup and power states.

LP873220RHDRQ1 is commonly used when an automotive PMIC must provide four rails, wettable-flank VQFN assembly, EMI mitigation through spread-spectrum and phase interleaving, and robust OVP, UVLO, overload, short-circuit, and thermal protection.

Key Specifications

Pinout & Package

The LP873220RHDRQ1 pinout includes input supply pins, two buck switch nodes, feedback/remote-sense pins, two LDO inputs and outputs, I2C pins, GPO/GPO2, interrupt and PGOOD functions, enable control, and exposed-pad ground.

For PCB design, each buck inductor loop should be compact, remote-sense traces should be routed as quiet Kelvin connections, LDO capacitors should be close to their output pins, and I2C/interrupt traces should avoid switching nodes.

Key Features

• Two 2A buck converters support processor core and I/O rails.
• Two 300mA LDOs provide auxiliary or low-noise rails.
• I2C interface supports configuration and power-state control.
• Remote voltage sensing improves point-of-load accuracy.
• Spread-spectrum and phase interleaving reduce EMI stress.
• Wettable-flank VQFN and AEC-Q100 qualification support automotive production.

Applications

Equivalent & Alternatives

When evaluating a LP873220RHDRQ1 equivalent, engineers should compare rail count, buck current, LDO current, I2C control, package, remote-sense support, protection functions, and automotive qualification.

Compared with LP8731QYZRRQ1, LP873220RHDRQ1 targets the LP873220-Q1 default configuration and wettable-flank RHD package for J6 entry and automotive sensing platforms. LP873220RHDRQ1 vs TPS65023 selection depends on automotive qualification, rail current, package, and I2C/software compatibility.

Quality

LP873220RHDRQ1 should be sourced as original Texas Instruments components through traceable supply channels. Quality checks may include VQFN wettable-flank inspection, top-mark validation, solderability testing, buck and LDO output verification, I2C communication testing, and AEC-Q100 documentation review.

Production validation should include remote-sense accuracy, buck transient response, LDO stability, spread-spectrum EMI behavior, PGOOD timing, GPO/interrupt behavior, thermal rise, and protection thresholds.

Availability

LP873220RHDRQ1 available at Aetrix Electronics and is suitable for automotive camera, radar, processor, infotainment, industrial vision, and compact multi-rail embedded power systems.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming default configuration, package, I2C address, lifecycle status, lead time, and sourcing continuity helps reduce procurement risk.

Manufacturer

Texas Instruments is a global semiconductor manufacturer specializing in analog ICs, embedded processors, power-management devices, interface products, sensing solutions, and industrial semiconductor technologies for automotive, industrial, communication, and consumer electronics.

The LP873220-Q1 product family is a Texas Instruments automotive PMIC series integrating two high-current buck converters, two LDO regulators, I2C control, remote sensing, EMI-reduction features, and protection functions for camera, radar, and processor-based vehicle platforms.

FAQ

What is LP873220RHDRQ1 used for?

LP873220RHDRQ1 is used for automotive cameras, radar modules, J6 entry processor boards, infotainment subsystems, industrial vision modules, and compact embedded multi-rail systems.

Where can I find the LP873220RHDRQ1 datasheet download?

The LP873220RHDRQ1 datasheet is available from Texas Instruments as the LP873220-Q1 dual buck and dual linear regulator documentation.

What should be considered in LP873220RHDRQ1 pinout design?

Designers should keep buck loops compact, route remote-sense lines as quiet Kelvin traces, place LDO capacitors near the IC, and connect the exposed pad to thermal ground.

Does LP873220RHDRQ1 support I2C control?

Yes. The LP873220-Q1 supports an I2C-compatible serial interface for control and status functions.

What are common LP873220RHDRQ1 equivalent solutions?

Common candidates include LP8731QYZRRQ1 and TPS65023 depending on default voltages, rail count, current, package, and interface requirements.