1.1 Powering the MCP16503 Evaluation Board

Complete the following steps to power up the MCP16503 Evaluation Board:
  1. Connect a power supply to the VIN and PGND terminals (remove the J1 jumper if present). An ammeter may be placed between the input supply and the VIN terminal of the Evaluation Board. Ensure that the supply voltage is monitored at the VIN terminal. The ammeter and/or power lead resistance can reduce the voltage supplied to the input.
    Figure 1-1. MCP16503 Evaluation Board Connection
    Note: Keep the power supply disabled; do not apply power before Step 5.
  2. Connect the loads to the VOUTx for buck converters or LVOUTx for LDO regulators and PGND terminals. The load can be either passive (resistive) or active (electronic load). An ammeter can be placed between the load and each output terminal. Ensure that the output voltage is monitored at the output terminals.
  3. Make sure the jumpers are connected as shown in Figure 1-1 (HPM = LPM = LOW, PWRHLD = VPULL= VIN, and remove the J1 jumper if present), except for the EN pin, which should be pulled LOW. Each regulator on this board can be set to one of three output voltages. To choose the output voltage for a channel, find the terminals labeled VSETx or VSETLx for that channel. Place a jumper on the pair of pins that correspond to the desired output voltage. Every channel shall be configured via the VSETx/VSETLx pins at the end of this step.
  4. To change the PMIC parameters or to monitor the device, connect the Evaluation Board to the PC using a USB-to-USB-C cable.
  5. Set the power supply to 5V and turn it on. Alternatively, if no power supply is available, a jumper can be connected to J1, so that the board is powered from the USB connection.
  6. Move the EN jumper to the VIN position.
  7. Verify that the output voltages are regulated to the desired VOUT setting for each channel.
  8. The PMIC settings can be modified using the GUI. For details on how to use the I2C Monitor, see I2C Monitor Graphical User Interface Uninstall.