Diodes Incorporated recommends a PCB layout with a solid ground plane, minimal thermal vias, and a heat sink attached to the exposed pad to achieve optimal thermal performance.
To ensure stable output voltage regulation, it's essential to follow the recommended input and output capacitor values, as well as the suggested PCB layout. Additionally, ensure that the input voltage is within the specified range, and the output current is within the maximum rating.
The maximum junction temperature (Tj) for the AP33772DKZ-13 is 150°C. Operating the device above this temperature can lead to reduced reliability and lifespan.
The AP33772DKZ-13 is an industrial-grade device, but it's not specifically designed for high-reliability or automotive applications. For such applications, consider using devices with higher reliability ratings, such as AEC-Q100 qualified devices.
During PCB assembly, ensure that the exposed pad (EP) is connected to a heat sink or a solid ground plane to improve thermal performance. Avoid applying solder paste or flux to the EP, as it can compromise the device's thermal performance.
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