Murata recommends a PCB layout with a solid ground plane and a minimum of 2oz copper thickness to ensure optimal thermal performance. Additionally, a thermal relief pattern around the device can help to reduce thermal impedance.
To ensure reliable start-up, Murata recommends a soft-start circuit to limit the inrush current and a sufficient input capacitance to stabilize the input voltage. Additionally, a minimum input voltage of 36V is recommended to ensure reliable start-up.
The maximum allowed capacitance for the output filter capacitor is 220uF. Exceeding this value may cause instability or oscillation in the converter.
While it is possible to use a different input capacitor type or value, Murata recommends following the recommended input capacitance value and type to ensure optimal performance and reliability. Deviating from the recommended values may affect the converter's stability and efficiency.
To troubleshoot issues with the output voltage regulation, check the input voltage, output load, and feedback circuitry. Ensure that the feedback resistors are correctly selected and that the output voltage sense lines are properly connected. Also, verify that the output capacitor is within the recommended specifications.
