The recommended layout and routing for the DS8102+ involves keeping the input and output traces as short as possible, using a solid ground plane, and avoiding vias under the device. Additionally, the input and output capacitors should be placed as close to the device as possible, and the power supply decoupling capacitors should be placed near the power pins.
To ensure the DS8102+ is properly powered and decoupled, use a low-ESR capacitor (e.g., 10uF) connected between the VCC and GND pins, and a smaller capacitor (e.g., 100nF) connected between the VCC and GND pins near the device. Additionally, use a 1uF capacitor connected between the VCC and GND pins for each output stage.
The maximum output current of the DS8102+ is 100mA per channel, but this can be limited by the thermal performance of the device and the PCB. It's recommended to keep the output current below 50mA per channel to ensure reliable operation.
The DS8102+ can be configured for a specific output voltage by adjusting the resistive divider network connected to the FB pin. The output voltage is determined by the ratio of the resistors in the divider network, and can be calculated using the formula: VOUT = 1.25V x (R1 + R2) / R2.
The EN (enable) pin on the DS8102+ is used to enable or disable the device. When the EN pin is pulled high, the device is enabled and the output voltage is regulated. When the EN pin is pulled low, the device is disabled and the output voltage is turned off.
DS8102+ datasheet
by Maxim Integrated Products
