TPS22916: Does the switch need input and output capacitors for very low current use ?

Hello Victor,

The input capacitance recommendation is to help prevent the supply voltage from dropping when the load is enabled. If your supply is more than capable of providing the current to the load without dipping in voltage then it would be fine if the below condition doesn't apply.

If your load has any capacitance it's recommended to have some input capacitance (at least 1:1 ratio) so that sudden drops on the supply will not lead to reverse current (load side held at a higher potential and RCB requires a 25mV drop across the device from output to input to activate RCB).

Also, keep in mind that the device has an Iq = 0.5 uA typ.

Regards,

Kalin Burnside

Hello Victor,

None with the same specifications as TPS22916. There are devices with lower Iq such as TPS2290X, TPS2292X that have slightly lower Iq but do not offer the same features and have different specifications.

https://www.ti.com/power-management/power-switches/load-switches/products.html?login-check=true#sort=p2849typ;asc

Regards,

Kalin Burnside