LP87642-Q1 evaluation module for four-phase one output functional safety compliant buck converter


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The LP87642Q1EVM 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 LP876411E2RQRQ1 which has 4-phase 2.2 MHz configuration for one high current multiphase rail. The EVM boards can be stacked for multi-PMIC operation testing.

  • 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 testing

  • USB-C Male A to USB Male C cable

Analog switches & muxes
TS3A5018 3.3-V, 2:1 (SPDT), 4-channel general-purpose analog switch TS3A5223 0.45-Ω on-state resistance, 3.3-V, 2:1 (SPDT), 2-channel analog switch with 1-V logic


Application-specific voltage translators
SN74GTL2003 8-Bit Bidirectional Low-voltage Translator


Arm-based microcontrollers
MSP432E401Y SimpleLink™ 32-bit Arm Cortex-M4F MCU with ethernet, CAN, 1MB Flash and 256kB RAM


LM2901AV Precision quad differential comparator


ESD & surge protection ICs
TPD4S012 Quad 0.8-pF, 5.5-V, ±8-kV ESD protection diode with 15-V tolerant Vbus for USB Interface TPD6E004 6 channel 1.6-pF, 5.5-V, 8-kV ESD protection diode for High Speed Interfaces


Linear & low-dropout (LDO) regulators
TLV733P-Q1 Automotive 300-mA, low-IQ, low-dropout voltage regulator with enable


Multi-channel ICs (PMICs)
LP8764-Q1 4 5-A/20-A multiphase buck converters PMIC with functional safety features for automotive SoCs


N-channel MOSFETs
CSD13381F4 12-V, N channel NexFET™ power MOSFET, single LGA 1 mm x 0.6mm, 180 mOhm, gate ESD protection

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Evaluation board


Automotive four-phase one output functional safety compliant buck converter evaluation module

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Technical documentation

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Type Title Date
* User guide LP8764x-Q1 Evaluation Module User's Guide (Rev. A) PDF | HTML Feb. 03, 2022
User guide Scalable PMIC's GUI User’s Guide (Rev. B) PDF | HTML Jun. 27, 2022
Certificate LP87642Q1EVM EU RoHS Declaration of Conformity (DoC) Jan. 18, 2022

Related design resources

Hardware development

LP87644Q1EVM Evaluation module for 1+1+1+1 phase four output functional safety compliant buck converter PMICLOADBOARDEVM Electric load board for Texas Instruments PMIC transient measurements TPS6594EVM Automotive 2.8 V to 5.5 V, 5 buck & 4 LDO Power Management IC (PMIC) EVM

Software development

SCALABLE-PMIC-GUI GUI for evaluation and configuration of the TPS6594x, TPS6593x, and LP876x scalable PMICs

Support & training

TI E2E™ forums with technical support from TI engineers

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