A good PCB layout for the TPS3707-33D involves placing the input capacitor (Cin) close to the VIN pin, and the output capacitor (Cout) close to the VOUT pin. Additionally, keep the power traces short and wide, and use a solid ground plane to reduce noise and improve stability.
Choose input and output capacitors with low ESR (Equivalent Series Resistance) and high ripple current ratings. For the input capacitor, a 10uF to 22uF ceramic capacitor is recommended. For the output capacitor, a 10uF to 47uF ceramic capacitor is recommended. Make sure to check the capacitor's voltage rating and temperature range.
The TPS3707-33D can handle input voltages up to 18V, but it's recommended to keep the input voltage below 15V to ensure reliable operation and to prevent overheating.
The output voltage of the TPS3707-33D is fixed at 3.3V, and it's not adjustable. The output voltage is regulated to 3.3V ±2% over the operating temperature range.
The TPS3707-33D can provide up to 1A of output current. However, the output current should be derated based on the ambient temperature and the input voltage to ensure reliable operation.
TPS3707-33D datasheet
by Texas Instruments
