A good PCB layout for the MAX3535EEWI+ involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the device close to the power source. Additionally, using a shielded inductor and placing it away from the device can help reduce EMI.
To ensure the MAX3535EEWI+ operates within its recommended operating conditions, make sure to provide a stable input voltage within the recommended range (4.5V to 5.5V), keep the ambient temperature within the recommended range (-40°C to 85°C), and avoid exceeding the maximum current rating (3.5A).
The recommended input capacitor value for the MAX3535EEWI+ is 10uF to 22uF, with an X5R or X7R dielectric type. This helps to filter out noise and ensure stable operation.
To troubleshoot issues with the MAX3535EEWI+ not regulating the output voltage, check the input voltage, output load, and feedback resistors. Ensure the input voltage is within the recommended range, the output load is within the recommended current rating, and the feedback resistors are correctly connected and of the correct value.
While the MAX3535EEWI+ can operate up to 85°C, it's recommended to derate the device's performance at high temperatures. Consult the datasheet for thermal derating information and consider using a heat sink or thermal management system if operating in high-temperature environments.
MAX3535EEWI+ datasheet
by Maxim Integrated Products
