The maximum input voltage is 25V, but it's recommended to operate within 12V to 20V for optimal performance.
To ensure stability, it's essential to follow the recommended layout guidelines, use a suitable output capacitor, and add a feedback resistor (RFB) to the FB pin.
The EN (enable) pin is used to turn the converter on or off. Connect EN to VIN to enable the converter or to GND to disable it. You can also use a logic signal to control the EN pin.
Choose an inductor with a suitable inductance value, saturation current, and DC resistance (DCR). The datasheet provides guidelines for inductor selection, and you can also use TI's WEBENCH tool to find a suitable inductor.
Follow the recommended layout guidelines in the datasheet, which include keeping the power stage components close together, using a solid ground plane, and minimizing trace lengths and widths.