ZHCSI93D May 2018 – October 2022 TPS65987D
PRODUCTION DATA
The VIN_3V3 input is the main supply to the TPS65987D device. The VIN_3V3 switch (see Figure 8-9) is a unidirectional switch from VIN_3V3 to LDO_3V3, not allowing current to flow backwards from LDO_3V3 to VIN_3V3. This switch is on when 3.3 V is available. See Table 10-1 for the recommended external capacitance on the VIN_3V3 pin.