The recommended PCB layout for the MAX8648ETE+ is to keep the input and output capacitors close to the device, and to use a solid ground plane to reduce noise and improve thermal performance. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. Also, avoid using long traces and vias near the device, as they can introduce noise and instability.
The maximum input voltage that the MAX8648ETE+ can handle is 28V. However, it's recommended to operate the device within the recommended input voltage range of 4.5V to 24V to ensure reliable operation and to prevent damage to the device.
The MAX8648ETE+ is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It's recommended to derate the device's output current and to ensure good thermal management to prevent overheating.
To troubleshoot issues with the MAX8648ETE+, start by checking the input voltage, output voltage, and output current. Use an oscilloscope to check for noise and oscillations. Also, check the PCB layout and component values to ensure they meet the recommended specifications. Consult the datasheet and application notes for more troubleshooting tips.
MAX8648ETE+ datasheet
by Maxim Integrated Products
