Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general guidelines for high-frequency PCB design, such as using a solid ground plane, minimizing trace lengths, and using bypass capacitors to reduce noise and ringing.
The output capacitor should be chosen based on the desired output voltage ripple, output current, and operating frequency. A general rule of thumb is to use a capacitor with a capacitance value of at least 10uF and a voltage rating of at least 1.5 times the output voltage. Additionally, the capacitor's ESR (Equivalent Series Resistance) should be low enough to minimize voltage ripple.
The TPS3613-01DGSRG4 has an absolute maximum input voltage rating of 6.5V, but the recommended maximum input voltage is 5.5V to ensure reliable operation and prevent damage to the device.
The TPS3613-01DGSRG4 has a built-in overcurrent protection feature that can be enabled by connecting the OC pin to a resistor and capacitor network. The resistor value should be chosen based on the desired overcurrent threshold, and the capacitor value should be chosen to filter out noise and ensure reliable operation.
The thermal derating curve for the TPS3613-01DGSRG4 is not explicitly provided in the datasheet, but it can be estimated based on the device's thermal resistance and maximum junction temperature. As a general rule, the device's output current should be derated by 1-2% per degree Celsius above 25°C to ensure reliable operation.
TPS3613-01DGSRG4 datasheet
by Texas Instruments
