A good PCB layout for the TPS65101PWPR involves placing the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure the stability of the TPS65101PWPR output voltage, it's essential to choose the right output capacitor value and type. A minimum capacitance of 10uF is recommended, and the capacitor should have a low ESR (Equivalent Series Resistance) to minimize voltage ripple. Additionally, the output voltage can be stabilized by adding a small ceramic capacitor (e.g., 100nF) in parallel with the output capacitor.
The TPS65101PWPR can handle a maximum input voltage of 18V. However, it's recommended to operate the device within the specified input voltage range of 4.5V to 15V for optimal performance and reliability.
The TPS65101PWPR is rated for operation up to 85°C ambient temperature. However, the device's performance and reliability may degrade at higher temperatures. It's recommended to derate the device's output current and voltage according to the temperature derating curve provided in the datasheet.
To troubleshoot issues with the TPS65101PWPR output voltage, first, verify that the input voltage is within the specified range and that the input and output capacitors are properly connected. Check for any signs of overheating, and ensure that the device is not operating in a high-temperature environment. If the issue persists, try replacing the output capacitor or checking for any PCB layout issues.
TPS65101PWPR datasheet
by Texas Instruments
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