LP87644-Q1 evaluation module for four-output buck converter


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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 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 Cortex-M4 MCUs
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, ±10-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
TLV710-Q1 Automotive 200-mA, high-PSRR, dual-channel low-dropout voltage regulator with enable


Multi-channel ICs (PMICs)
LP8764-Q1 4 5-A/20-A multiphase buck converters PMIC for automotive SoCs
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Evaluation board

LP87644Q1EVM — LP87644-Q1 evaluation module for four-output buck converter

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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 03 Feb 2022
User guide Scalable PMIC's GUI User’s Guide (Rev. B) PDF | HTML 27 Jun 2022
Certificate LP87644Q1EVM EU Declaration of Conformity (DoC) 29 Jun 2020

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