Texas Instruments TPS22971YZPT

The TPS22971 is a space-saving single-channel load switch withcontrolled and adjustable turn-on slew rate and an integrated power good indicator. the devicecontains an n-channel mosfet that can operate over a low input voltage range of 0.65 v to 3.6 V andcan support a maximum continuous current of 3 A. A low on-resistance of 6.7-mΩ minimizes the powerloss 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.

By default, the TPS22971 has a fast turn-on time to minimize system startup and waittime. The adjustable slew rate can also be reduced to limit inrush current. A power good (PG)signal internally monitors the gate threshold and indicates when the switch is fully on. When theswitch is disabled, a 150-Ω on-chip resistor quickly discharges the output to ground and keeps itfrom floating.

The TPS22971 is available in an ultra-small, space saving 8-pin WCSP package and ischaracterized for operation over the free-air temperature range of –40°C to 105°C and integratesthermal shutdown to turn off in case of overheating.