A good PCB layout for the TPS51216RUKT involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
The input capacitor should be a low-ESR ceramic capacitor with a value of at least 10uF, and the output capacitor should be a low-ESR ceramic capacitor with a value of at least 22uF. The capacitor values can be adjusted based on the specific application requirements.
The TPS51216RUKT can operate in an ambient temperature range of -40°C to 85°C, but the junction temperature should not exceed 125°C.
The power dissipation of the TPS51216RUKT can be calculated using the formula: Pd = (Vin - Vout) x Iout x Efficiency. The efficiency can be obtained from the datasheet or by measuring the input and output currents and voltages.
The recommended input voltage range for the TPS51216RUKT is 2.7V to 5.5V, but it can operate with an input voltage as low as 2.5V with reduced performance.
TPS51216RUKT datasheet
by Texas Instruments
