The TPS22910A, TPS22912C, and TPS22913B/C are small, low rON load
switches with controlled turn on. The device contains a P-channel MOSFET that can operate over an
input voltage range of 1.4 V to 5.5 V. The switch is controlled by an on/off input (ON), which is
capable of interfacing directly with low-voltage GPIO control signals.
The TPS22910A, TPS22912C, and TPS22913B/C devices provide reverse current protection in
ON and OFF states. An internal reverse voltage comparator disables the power-switch when the output
voltage (VOUT) is driven higher than the input voltage
(VIN), by VRCP, to quickly (10 µs typ) stop the flow
of current towards the input side of the switch. Reverse current protection is always active, even
when the power-switch is disabled. Additionally, under-voltage lockout (UVLO) protection turns the
switch off if the input voltage is too low.
The TPS22913B/C contains a 150-Ω on-chip load resistor for quick output discharge when
the switch is turned off.
This family of devices have various slew rate options to avoid inrush current (see
for details), are
available in an ultra-small, space-saving 4-pin WCSP packages, and are characterized for operation
over the free-air temperature range of –40°C to 85°C.
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