Product details


Regulated outputs (#) 4 Vin (Min) (V) 2.8 Vin (Max) (V) 5.5 Iout (Max) (A) 20 Step-down DC/DC controller 0 Step-down DC/DC converter 4 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 0 Iq (Typ) (mA) 16 Features Watchdog, Error Signal Monitor, Multiphase, SPI, I2C, SPMI, Voltage Monitoring, PGOOD, Thermal monitor Operating temperature range (C) -40 to 125 Rating Automotive Processor name DRA821, TDA4VM Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 1 Configurability Factory programmable, Software configurable, User programmable 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 Range
  • Developed According to the Requirements of ISO26262 Supporting ASIL-D Systems (SEooC)
    • Designed for Function Safety Applications
    • Windowed Voltage and Over-Current Monitors
    • Integrated Q&A or Trigger Mode Watchdog Module
    • Level or PWM Error Signal Monitoring (ESM) Supporting Processors with Safety-MCU
    • Thermal Monitoring with High Temperature Warning and Thermal Shutdown
    • NVM Bit-Integrity Error Detection
  • Input Voltage: 2.8 V to 5.5 V
  • 4 High-Efficiency Multiphase Step-Down DC/DC Converters:
    • Output Voltage: 0.3 V to 3.34 V (0.3 V to 1.9 V for Multi-Phase Outputs)
    • Maximum output current: 5 A per phase, up to 20 A with 4-Phase Configuration
    • Programmable Output Voltage Slew-Rate
    • Switching frequency: 2.2 MHz or 4.4 MHz
  • 10 configurable General Purpose I/O (GPIO)
  • One SPI or Two I2C-compatible Interfaces that Support Standard (100 kHz), Fast (400 kHz), Fast+ (1 MHz), and High-Speed (3.4 MHz) Modes
  • SPMI Interface for Multi-PMIC Synchronization
  • Input Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)



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The LP8764-Q1 device is designed to meet the power management requirements of the latest processors and platforms in various safety-relevant automotive and industrial applications. The device has four step-down DC/DC converter cores, which are configurable for five different configurations: one 4-phase output, one 3-phase and one 1-phase outputs, one 2-phase and two 1-phase outputs, four 1-phase outputs, or two 2-phase outputs. Most of the device static settings can be changed by I2C-compatible serial interface or by a SPI serial interface.

The automatic PFM/PWM (AUTO mode) operation together with the automatic phase adding and phase shedding maximizes efficiency over a wide output-current range. The LP8764-Q1 device supports remote differential voltage sensing for multiphase outputs to compensate IR drop between the regulator output and the point-of-load (POL) which improves the accuracy of the output voltage. The switching clock can be forced to PWM mode and the phases are interleaved. The switching can be synchronized to an external clock and spread-spectrum mode can be enabled to minimize the disturbances.

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Request samples & more information

The full data sheet and other information are available. Request now

Preproduction samples are available (P876441A1RQKRQ1). Request now

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Technical documentation

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Type Title Date
* Data sheet LP8764-Q1 Four-Phase, 20-A Buck Converter With Integrated Switches datasheet Nov. 01, 2020
Technical article What’s not in the power MOSFET data sheet part 2: voltage-dependent leakage currents Jul. 23, 2021
User guide Scalable PMIC's GUI User’s Guide (Rev. A) Nov. 19, 2020
User guide LP8764x-Q1 Evaluation Module User's Guide Nov. 06, 2020
User guide Powering DRA821 with TPS6594-Q1 and LP8764-Q1 Oct. 30, 2020
White paper 運用 Jacinto™ 7 處理器的汽車設計功能安全特性 Mar. 01, 2020
White paper 오토모티브 설계 시 Jacinto™ 7 프로세서의 기능적 안전성 활용하기 Mar. 01, 2020
User guide LP8764-Q1 Technical Reference Manual Jan. 07, 2020
White paper Leverage Jacinto 7 Processors Functional Safety Features for Automotive Designs Dec. 12, 2019

Design & development

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

Hardware development

DRA821 system-on-module
document-generic User guide

The J7200XSOMG01EVM system-on-module—when paired with the J721EXCP01EVM common processor board—lets you evaluate the DRA821 processor for networking applications throughout automotive and industrial markets. These processors perform particularly well in industrial and automotive gateway (...)

  • DRA821 (J7200) processor
  • Mates with the Common Processor board (SOM and CP are needed for base EVM functionality)
  • Optimized power solution (PMIC)
  • DRAM, LPDDR4‐3733, 4GByte total memory, support inline ECC
  • xSPI NOR flash, 512Mb memory (8bit)
  • HyperFlash + HyperRAM, 512Mb flash memory + 256Mb RAM
document-generic User guide
The LP87644Q1EVM board can be used to test, demo, debug and configure one or more LP8764-Q1 power managements ICs for automotive and industrial applications. The device on board is LP876441E4RQKRQ1 which has 1+1+1+1-phase configuration for 4 different output voltage rails. The boards can be (...)
  • Input voltage range from 3.0 V to 5.5 V
  • Output load current 5.0 A per phase, total output load current up to 20 A
  • On board MSP432 to communicate with PMIC using GUI via USB-C cable
  • Board can be reworked to support other LP8764-Q1 phase configurations
  • Boards can be stacked to support multi-PMIC operation (...)

Software development

GUI for evaluation and configuration of the TPS6594x, TPS6593x, and LP876x scalable PMICs
SCALABLE-PMIC-GUI — GUI Composer tool for evaluating and configuring Scalable PMICs.
  • Register view page
  • NVM configuration page
  • NVM validation page

Design tools & simulation

Efficiency estimation tool for TPS6594-Q1, LP8756-Q1, LP8758, LP8770 and TPS650330-Q1
PEET-GUI — Efficiency estimator tool for Texas Instruments PMICs such as TPS6594-Q1, LP8756 family, LP8758 family and more.
  • Efficiency data based on available measurement data
  • Automatic data plotting
  • Export efficiency curves

CAD/CAE symbols

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Ordering & quality

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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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Support & training

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