Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general best practices for switching regulator layout, such as keeping the input and output capacitors close to the IC, and using a solid ground plane to reduce noise and EMI.
The selection of the inductor depends on the output current, output voltage, and switching frequency. TI provides an inductor selection guide in the datasheet, but it's also important to consider factors such as inductor core material, size, and saturation current. A good starting point is to use an inductor with a value between 1-4.7uH and a saturation current rating above the maximum output current.
The maximum input voltage rating for the TPS61282YFFR is 15V, but it's recommended to keep the input voltage below 12V to ensure reliable operation and to prevent damage to the internal components.
To ensure stability, it's important to follow the recommended component values and PCB layout in the datasheet. Additionally, make sure to use a sufficient output capacitor with a low ESR, and consider adding a small ceramic capacitor in parallel with the output capacitor to improve stability.
The TPS61282YFFR is rated for operation up to 125°C, but it's important to consider the derating of the output current and voltage regulation accuracy at high temperatures. It's also important to ensure that the PCB and surrounding components can withstand the high temperatures.
TPS61282YFFR datasheet
by Texas Instruments
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