ROHM recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended, and the thermal pad should be connected to a ground plane or a dedicated heat sink.
To ensure reliable operation at high temperatures, it's essential to follow the recommended operating conditions, including the maximum junction temperature (Tj) of 150°C. Additionally, consider using a heat sink, and ensure good thermal conductivity between the device and the heat sink.
ROHM recommends using a ceramic capacitor with a value of 10uF to 22uF, and an X7R or X5R dielectric. The capacitor should be placed as close as possible to the VIN pin to minimize noise and ensure stable operation.
To troubleshoot output voltage regulation issues, check the input voltage, output load, and feedback resistors. Ensure that the input voltage is within the recommended range, the output load is within the specified current limit, and the feedback resistors are correctly configured. Also, verify that the device is properly soldered and that there are no signs of overheating.
ROHM recommends using ESD protection devices, such as TVS diodes or ESD arrays, to protect the SST4403HZGT116 from electrostatic discharge. The ESD protection device should be placed as close as possible to the device's input pins.
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SST4403HZGT116 Overview
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