A good PCB layout for the TPS65131RGER 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 TPS65131RGER output voltage, it's essential to choose the correct 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.
The TPS65131RGER 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 TPS65131RGER 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 TPS65131RGER output voltage, check the input voltage, output capacitor value, and PCB layout. Ensure that the input voltage is within the specified range, the output capacitor is properly sized, and the PCB layout is optimized for the device. Also, check for any signs of overheating or physical damage to the device.
TPS65131RGER datasheet
by Texas Instruments
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