TPS2553DBVR

The TPS255x and TPS255x-1 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 (typical) through
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 turnon
and turnoff.
TPS255x devices limit the output current to a safe
level by using a constant-current mode when the
output load exceeds the current-limit threshold.
TPS255x-1 devices provide circuit breaker
functionality by latching off the power switch during
overcurrent or reverse-voltage situations. An internal
reverse-voltage comparator disables the powerswitch 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.