The recommended layout and placement for the MAX8862LESE+ involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the traces between the device and the capacitors. A 4-layer PCB with a dedicated power plane is also recommended.
To ensure stability, make sure to follow the recommended component values and layout guidelines. Additionally, ensure that the input and output capacitors have a low equivalent series resistance (ESR) and are placed close to the device. Also, avoid using capacitors with high inductance or resistance.
The MAX8862LESE+ can handle input voltages up to 5.5V, but it's recommended to operate within the specified input voltage range of 2.7V to 5.5V for optimal performance and reliability.
The MAX8862LESE+ is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliability and prevent thermal shutdown.
To troubleshoot issues, start by checking the input voltage, output voltage, and output current. Verify that the device is properly powered and that the input and output capacitors are properly connected. Use an oscilloscope to check for oscillations or noise on the output. Consult the datasheet and application notes for more detailed troubleshooting guidelines.
MAX8862LESE+ datasheet
by Maxim Integrated Products
