A recommended PCB layout for optimal thermal performance would be to have a solid ground plane on the bottom layer, and to use thermal vias to connect the exposed pad to the ground plane. This helps to dissipate heat efficiently.
To ensure the stability of the output voltage, it's essential to follow the recommended component values and PCB layout guidelines. Additionally, make sure to use a sufficient output capacitor with a low ESR value to minimize voltage ripple.
Although the datasheet specifies a maximum input voltage of 13.2V, it's recommended to derate the input voltage to 12.6V to ensure reliable operation and to prevent damage to the device.
While the AP8802HSP-13 is rated for operation up to 125°C, it's essential to consider the thermal derating curve and ensure that the device does not exceed the maximum junction temperature (Tj) of 150°C. Proper thermal design and heat sinking are crucial in high-temperature environments.
To troubleshoot issues with the AP8802HSP-13, start by verifying the input voltage, output voltage, and current. Check for any signs of overheating, and ensure that the device is properly soldered and connected. If issues persist, consult the datasheet and application notes for guidance.
AP8802HSP-13 datasheet
by Diodes Incorporated
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