A good PCB layout for the TPS65101RGER 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. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
To ensure stability, it's essential to follow the recommended component values and PCB layout guidelines. Additionally, the output voltage can be stabilized by adding a 10nF to 100nF ceramic capacitor in parallel with the output capacitor, and by using a low-ESR output capacitor.
The TPS65101RGER can handle input voltages up to 18V, but it's recommended to operate within the specified input voltage range of 4.5V to 15V for optimal performance and reliability.
The TPS65101RGER is rated for operation up to 85°C, but it's essential to consider the device's power dissipation and thermal management when operating in high-temperature environments. A heat sink or thermal pad may be necessary to ensure reliable operation.
To troubleshoot output voltage issues, check the input voltage, output capacitor value, and PCB layout. Verify that the device is properly soldered and that there are no shorts or opens on the PCB. Use an oscilloscope to measure the output voltage and check for any oscillations or noise.
TPS65101RGER datasheet
by Texas Instruments
