SLVUBX4A November   2020  – February 2022 LP8764-Q1


  1.   Trademarks
  2. 1Introduction
  3. 2Getting Started
    1. 2.1 Getting Started: Single EVM
    2. 2.2 Getting Started: Multiple EVM Evaluation
    3. 2.3 GUI Tool
  4. 3EVM Details
    1. 3.1 Terminal Blocks
    2. 3.2 Test Point Descriptions
    3. 3.3 Configuration Headers
    4. 3.4 Stack-up Headers
    5. 3.5 Connectors
    6. 3.6 Dip Switches
    7. 3.7 EVM Control and GPIO
  5. 4Customization
    1. 4.1 Changing the Communication Interface
    2. 4.2 Changing the Phase Configuration
  6. 5Schematic, Layout, and Bill of Materials
  7. 6Additional Resources
  8. 7Revision History


The LP8764x-Q1 power management integrated circuit (PMIC) family is extremely flexible and scalable, providing configurability at the device and system level. At the device level, a single PMIC can provide up to four separate step down converters (buck regulators). These buck regulators can be used in multiphase mode to provide a single 20 A source. At the system level, several PMICs can be configured to work in a controller-target topology with one controller and up to five target PMICs. The LP8764x-Q1 evaluation module (EVM) is both an evaluation and development tool. With the EVM both device level and system level configurability are available through an easy to use graphical user interface (GUI) tool.

Table 1-1 shows the available controller and target EVMs, the silicon associated with those EVMs, the initial non-volatile memory (NVM) configuration, and the hardware components associated with the configurations. Because of the configurable nature of both the part and the EVM, any EVM can be configured as a controller or target device.

Table 1-1 EVM Descriptions
EVM Part Number PMIC Device Part Number NVM Phase Configuration fSW Populated phase components
R1-R7 J3-J8
LP87642Q1EVM LP876411E2RQKRQ1 4-phase, single output: BUCK1+BUCK2+BUCK3+BUCK4 2.2MHz R1, R2, R5 and R6 J3-J8
LP87644Q1EVM LP876441E4RQKRQ1 4-output: BUCK1, BUCK2, BUCK3, BUCK4 4.4MHz R1, R3, R4 and R7 -