The TPS22971 is a space-saving single-channel load switch with
controlled and adjustable turnon slew rate and an integrated PG indicator. The device contains an
N-channel MOSFET that can operate over a low input voltage range of 0.65 V to 3.6 V and can support
a maximum continuous current of 3 A. A Low on-resistance of 7.5-mΩ minimizes the power loss and
voltage drop across the load switch. The switch is controlled by an on and off input (ON), which is
capable of interfacing directly with low-voltage control signals.
The TPS22971 is capable of thermal shutdown to turn off when the junction temperature is
above the recommended operating maximum. The switch turns on again when the junction temperature
lowers to a safe range.
The TPS22971 has a 150-Ω on-chip resistor for quick discharge of the output when switch
is disabled to avoid any unknown state caused by floating supply to the downstream load.
The TPS22971 has an internally adjustable rise time in order to reduce inrush current.
The switch also has integrated Power Good (PG) indicator for seamless downstream power
The TPS22971 is available in a 1.9-mm × 0.9-mm, 0.4-mm pin pitch, 0.5-mm height 8-pin
DSBGA package and is characterized for operation over the temperature range of –40°C to
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