The recommended PCB layout for the TDA8703T involves keeping the input and output tracks as short as possible, using a ground plane to reduce noise, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
To ensure stability, make sure to follow the recommended component values and PCB layout. Also, ensure that the input and output capacitors are of high quality and have low ESR. Additionally, the device should be decoupled from the power supply using a 10uF capacitor in parallel with a 100nF capacitor.
The maximum input voltage that the TDA8703T can handle is 40V, but it's recommended to keep the input voltage below 30V to ensure reliable operation and to prevent damage to the device.
Yes, the TDA8703T can be used in a switching regulator application, but it's not recommended as it's primarily designed for linear regulator applications. If you need a switching regulator, consider using a dedicated switching regulator IC.
To protect the TDA8703T from overcurrent and overheating, use an external current limiting resistor and a thermal shutdown circuit. Also, ensure that the device is mounted on a heat sink with a thermal resistance of less than 10°C/W.