The TPS22971 is a space-saving single-channel load switch with controlled and adjustable Turn-ON slew rate and an integrated Power Good 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 6.7-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.
By default, the TPS22971 has a Fast Turn-ON time to minimize system startup and wait time. 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 the switch is disabled, a 150-Ω on-chip resistor quickly discharges the output to ground and keeps it from floating.
The TPS22971 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to 105°C and integrates thermal shutdown to turn off in case of overheating.
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|Vin (Min) (V)|
|Vin (Max) (V)|
|Ron (Typ) (mOhm)|
|Quiescent Current (Iq) (Typ) (uA)|
|Rise Time (Typ) (us)|
|Current Limit Type|
|Number of Channels (#)|
|Operating Temperature Range (C)|
|HBM ESD (kV)|
|Output Rise Time @ 1.8V (Typ) (us)|
|Quiescent Current (Iq) (Max) (uA)|
|Ron @1.8V (Typ) (mOhm)|
|Shutdown Current (ISD) (Typ) (uA)|
| Power Good |
Quick Output Discharge
|Adjustable Rise Time|
|-40 to 85|