The maximum input voltage that can be applied to the TPS3307-18MFKB is 18V, as specified in the datasheet. However, it's recommended to keep the input voltage below 15V to ensure reliable operation and to prevent damage to the device.
To ensure stability, it's essential to follow the layout guidelines provided in the datasheet, including keeping the input and output capacitors close to the device, using a low-ESR output capacitor, and minimizing the loop area of the power traces. Additionally, make sure to decouple the input voltage with a capacitor and use a ferrite bead or a resistor in series with the input to filter out high-frequency noise.
The minimum output capacitance required for the TPS3307-18MFKB is 10uF, as specified in the datasheet. However, it's recommended to use a higher value capacitor, such as 22uF or 47uF, to ensure stable operation and to filter out output voltage ripple.
The TPS3307-18MFKB is rated for operation up to 125°C, but it's essential to consider the derating of the device's performance and reliability at high temperatures. Make sure to check the datasheet for thermal derating curves and to ensure that the device is properly heatsinked to prevent overheating.
The power dissipation of the TPS3307-18MFKB can be calculated using the formula: Pd = (Vin - Vout) x Iout x Efficiency. The efficiency of the device can be found in the datasheet, and the input and output voltages and currents should be measured or calculated based on the application requirements.
TPS3307-18MFKB datasheet
by Texas Instruments
