TPS2552 Power-Distribution Switches Texas Instruments TPS2552 Power-Distribution Switches are designed for applications that encounter heavy capacitive loads and short-circuits. These TI switches offer a programmable current-limit threshold from 75mA to 1.3A via an external resistor. The TPS2552 has current-limit accuracy as tight as +/- 6% at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turn on/off.