SBVS411A August 2020 – October 2020 TPS784
PRODUCTION DATA
The device has an internal pulldown MOSFET that connects an RPULLDOWN resistor to ground when the device is disabled to actively discharge the output voltage. The active discharge circuit is activated by the enable pin.
Do not rely on the active discharge circuit to discharge the output voltage after the input supply has collapsed because reverse current can possibly flow from the output to the input. This reverse current flow can cause damage to the device especially when a large output capacitor is used. Limit reverse current to no more than 5% of the device rated current for a short period of time.