Product details


Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 2 Step-down DC/DC controller 0 Step-down DC/DC converter 2 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 2 Iq (Typ) (mA) 0.009 Features Enable Pin, I2C Control, Power Good, Power Sequencing, Spread-Spectrum Clock (SSC) Generation, Thermal Shutdown, UVLO Adjustable Operating temperature range (C) -40 to 125 Rating Automotive Processor name DRA71x, DRA79x Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 9 Configurability Software configurable open-in-new Find other Multi-channel ICs (PMIC)

Package | Pins | Size

VQFN (RHD) 28 25 mm² 5 x 5 open-in-new Find other Multi-channel ICs (PMIC)


  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Input voltage: 2.8 V to 5.5 V
  • Two high-efficiency step-down DC/DC converters:
    • Output voltage: 0.7 V to 3.36 V
    • Maximum output current 2 A
    • Programmable output-voltage slew rate from 0.5 mV/µs to 10 mV/µs
    • 2-MHz switching frequency
    • Spread-spectrum mode and phase interleaving for EMI reduction
  • Two linear regulators:
    • Input voltage: 2.5 V to 5.5 V
    • Output voltage: 0.8 V to 3.3 V
    • Maximum output current 300 mA
  • Configurable general-purpose output signals (GPO, GPO2)
  • Interrupt function with programmable masking
  • Programmable power-good signal (PGOOD)
  • Output short-circuit and overload protection
  • Overtemperature warning and protection
  • Overvoltage protection (OVP) and undervoltage lockout (UVLO)
  • 28-pin, 5-mm × 5-mm VQFN package with wettable flanks
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The LP873220-Q1 is designed to meet the power management requirements of the latest processors and platforms in automotive camera and radar applications. The device has two step-down DC/DC converters, two linear regulators, and two general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.

The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output-current range. The LP873220-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL), thus improving the accuracy of the output voltage. In addition, the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.

The LP873220-Q1 device also supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.

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LP87332D-Q1 ACTIVE Automotive dual 3-A buck converters & dual linear regulators for J6 entry processors LP873220-Q1 + LP87332D-Q1 are combo solutions to power TI DRA71x, DRA79x, and TDA2E-17.

Technical documentation

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Type Title Date
* Data sheet LP873220-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet (Rev. A) Jun. 04, 2021
Application note The Benefits of FlexPower PMIC Devices (Rev. B) Nov. 23, 2020
User guide LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA71x, DRA79x, and TDA2E-17 (Rev. A) Jul. 10, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The LP87322Q1EVM demonstrates the integrated circuit LP873220-Q1 from Texas Instruments.

The LP873220-Q1 has two high-performance step-down converters and two LDOs, designed to meet the power management requirements of the latest applications processors in automotive applications. The LP873220-Q1 is (...)

  • Software Controller
  • USB-TO-I²C interface supports 3.4 MHz clock rate on the I²C bus
  • Versatile GUI: Output current measurement and status indicators
  • Console application allows running scripts. Application can execute user specified scripts.
  • Convenient test points for all I/O's

Design tools & simulation

SNVMB17A.ZIP (213 KB) - PSpice Model
PMIC Efficiency Estimator Tool (PEET)
PEET-GUI — The PMIC Efficiency Estimator Tool (PEET GUI) is a graphical user interface used to easily evaluate PMIC DC/DC regulator efficiency relative to your design conditions. The PEET GUI can be used to configure each DC/DC regulator separately and provides real-time efficiency and power dissipation data (...)
  • Efficiency data based on available measurement data
  • Automatic data plotting
  • Export efficiency curves

Reference designs

Automotive Stand-Alone Gateway Reference Design with Ethernet and CAN
TIDA-01425 The TIDA-01425 is a subsystem reference design for automotive gateways focused on increasing bandwidth and processing power in gateway applications. The design implements Ethernet physical layer transceivers (PHYs) for increased bandwidth along with an automotive processor for greater processing (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
VQFN (RHD) 28 View options

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