A good PCB layout for the SBL1660 should minimize parasitic inductance and capacitance. Place the input and output capacitors close to the device, and use a solid ground plane to reduce noise. A 4-layer PCB with a dedicated power plane and a separate ground plane is recommended.
To ensure the SBL1660 operates within its SOA, monitor the device's junction temperature, input voltage, and output current. Use thermal management techniques such as heat sinks or thermal pads to keep the junction temperature below 150°C. Also, ensure the input voltage does not exceed 18V and the output current does not exceed 6A.
The recommended input capacitor value for the SBL1660 is 10uF to 22uF, with a voltage rating of 25V or higher. A low-ESR ceramic capacitor such as X5R or X7R is recommended to minimize power losses and ensure stable operation.
The SBL1660 is rated for operation up to 150°C junction temperature. However, the device's performance and reliability may degrade at high temperatures. If your application requires operation above 125°C, consider using a heat sink or thermal management techniques to reduce the junction temperature.
To troubleshoot issues with the SBL1660, check the input voltage, output voltage, and output current. Verify that the device is properly soldered and that the PCB layout is correct. Use a thermal camera or thermometer to check the junction temperature. Consult the datasheet and application notes for guidance on troubleshooting specific issues.
SBL1660 datasheet
by Diodes Incorporated
