Bourns recommends a PCB layout with a solid ground plane, minimal track length, and a low-impedance path for the output capacitor to ensure low ESR and high-frequency noise reduction.
Choose an output capacitor with a low ESR (Equivalent Series Resistance), high ripple current rating, and a voltage rating that exceeds the maximum output voltage of the regulator. A 10uF to 22uF ceramic capacitor is a good starting point.
The thermal derating curve is not explicitly provided in the datasheet. However, as a general guideline, the device's power dissipation should be derated by 50% for every 10°C increase above the maximum operating temperature (125°C) to ensure reliable operation.
While the PWR221T-30-5000F is a high-quality component, it may not meet the specific requirements of high-reliability or aerospace applications. Bourns offers other products with enhanced screening and testing for these applications. Consult with Bourns' sales team or application engineers for guidance.
Follow Bourns' recommended soldering profile, and ensure the component is handled and stored according to the datasheet's guidelines. Use a soldering iron with a temperature range of 250°C to 260°C, and avoid applying excessive force or stress during assembly.
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PWR221T-30-5000F Overview
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