Reservoir capacitors

Select the size of the VINT reservoir capacitor by placing one or more jumpers on P3 which is labeled RESERVOIR CAP. You can configure various capacitor sizes by combining jumpers in different configurations.

The following figure shows the schematic for the reservoir capacitors.

Figure 1. Reservoir capacitors

The following table shows options for configuring the reservoir capacitor.

Table 1. Alternative reservoir capacitor configurations
Configuration	PMIC pin	Connected capacitor	Connecting jumper pins	Comment
Reservoir capacitance	VINT	C48	P3 pin 7 to pin 8	10 μF
		C49	P3 pin 5 to pin 6	22 μF
		C50	P3 pin 3 to pin 6	47 μF
		C51	P3 pin 1 to pin 2	100 μF

Note: A 10 μF capacitor on C4 is permanently connected to VINT to provide minimal VINT capacitance.

Note: Disconnect the power source before reconfiguring the reservoir capacitor.

For more information on reservoir capacitor selection, see nPM2100 Hardware Design Guidelines.