Other Parts Discussed in Thread: TPS65320D-Q1
In the current design, TPS65320D-Q1 is used to convert 12V to 3.3V by buck regulator and the LDO is used to convert 3.3v to 1.2V.
1. There is currently an inrush current issue with the 1.2V output, which has been measured at 1.8A. Is there a maximum limit for inrush current on the LDO_OUT pin?
2. As shown in the diagram below, when the 1.2V enable is activated, the inrush current value is 1.8A at LDO_OUT pin. Could inrush current cause the enable pin to be pulled low?
3. how to reduce the inrush current for LDO output
singnal 1: LDO enable pin
singnal 2: LDO output voltage
singnal 3: LDO output current
Derek