A good PCB layout for the SBL1060CT should minimize parasitic inductance and resistance. 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 SBL1060CT operates within its SOA, monitor the input voltage, output current, and junction temperature. Keep the input voltage within the recommended range, and use a thermal management system to keep the junction temperature below 150°C. Also, ensure the output current is within the recommended range to prevent overcurrent conditions.
The recommended input capacitor value for the SBL1060CT is 10uF to 22uF, with an X7R or X5R dielectric type. This value provides a good balance between input ripple rejection and stability. A higher value capacitor may be required for high-impedance sources or high-ripple inputs.
To troubleshoot oscillations or instability issues with the SBL1060CT, check the PCB layout for parasitic inductance and capacitance. Ensure the input and output capacitors are properly placed and sized. Also, check the input voltage and output current for any anomalies. If the issue persists, try adding a small ceramic capacitor (e.g., 10nF) between the VIN and GND pins to improve stability.
The maximum allowed voltage drop across the SBL1060CT is 1.5V. Exceeding this voltage drop may cause the device to malfunction or enter an overvoltage protection state. Ensure the input voltage is within the recommended range, and the output voltage is properly regulated to prevent excessive voltage drops.
SBL1060CT datasheet
by Diodes Incorporated
