The TPS2092D can source up to 2A of current, but it's recommended to limit it to 1.5A for reliable operation and to prevent overheating.
To ensure proper power-on and power-off, make sure to follow the recommended power-up and power-down sequencing in the datasheet, and use a capacitor on the EN pin to filter out noise and prevent unwanted switching.
The EN (enable) pin is used to turn the device on and off. It's an active-high input, meaning that the device is enabled when the EN pin is high (above 1.4V) and disabled when it's low (below 0.4V).
The sense resistor value depends on the maximum current you expect to flow through the device. A good starting point is to use the formula Rsense = 0.1V / Imax, where Rsense is the sense resistor value and Imax is the maximum expected current.
The main difference is that the TPS2092D has a lower quiescent current (IQ) of 10uA, making it more suitable for low-power applications, whereas the TPS2092A has a higher IQ of 50uA.