The TPS2552D and TPS2553D power-distribution switches are intended for applications where
precision current limiting is required or heavy capacitive loads and short circuits are encountered
and provide up to 1.5 A of continuous load current. These devices offer a programmable
current-limit threshold between 75 mA and 1.7 A (typ) via an external resistor. Current-limit
accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch
rise and fall times are controlled to minimize current surges during turn on/off.
The TPS2552D/3D devices limit the output current to a safe level by using a
constant-current mode when the output load exceeds the current-limit threshold. An internal
reverse-voltage comparator disables the power-switch when the output voltage is driven higher than
the input to protect devices on the input side of the switch. The FAULT
output asserts low during overcurrent and reverse-voltage conditions.
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