The TPS2552DBVT-1 can handle a maximum current of 2.5A, but it's recommended to limit the current to 1.5A for reliable operation.
To ensure proper power-on and power-off, make sure to follow the recommended power-up and power-down sequences outlined in the datasheet, and use a capacitor on the EN pin to filter out noise.
The EN (enable) pin is used to turn the device on and off. Connect the EN pin to a logic high (e.g., VCC) to enable the device, and connect it to a logic low (e.g., GND) to disable the device.
Choose a sense resistor (Rs) value that sets the current limit to the desired value. A smaller Rs value will result in a higher current limit, while a larger Rs value will result in a lower current limit. Use the formula Rs = 0.1V / Ilim to determine the Rs value, where Ilim is the desired current limit.
The FLT (fault) pin is an open-drain output that indicates when the device is in an overcurrent or overtemperature condition. Connect a pull-up resistor to the FLT pin and monitor its state to detect faults.