The recommended PCB layout for the MAX1797EUA-T 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. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to reduce noise and EMI.
The selection of input and output capacitors for the MAX1797EUA-T depends on the specific application requirements. In general, it's recommended to use low-ESR capacitors with a value of 10uF to 22uF for the input capacitor and 10uF to 47uF for the output capacitor. The capacitor voltage rating should be at least 1.5 times the maximum input voltage.
The MAX1797EUA-T is rated for operation over a temperature range of -40°C to +125°C. However, the device's performance and reliability may be affected at extreme temperatures, so it's recommended to operate the device within a temperature range of -20°C to +85°C for optimal performance.
To ensure proper power-up and power-down of the MAX1797EUA-T, it's recommended to follow a controlled power-up sequence, where the input voltage is ramped up slowly (typically within 10ms) to the nominal operating voltage. During power-down, the input voltage should be ramped down slowly to prevent any voltage spikes or oscillations.
The recommended input voltage range for the MAX1797EUA-T is 2.7V to 5.5V. Operating the device outside of this range may affect its performance and reliability.
MAX1797EUA-T datasheet
by Maxim Integrated Products
