The MAX813LEPA+ requires careful layout and placement to minimize noise and ensure optimal performance. It is recommended to place the device close to the battery, use a solid ground plane, and keep the input and output traces short and separate to minimize noise coupling.
The voltage-setting resistors (R1 and R2) should be chosen based on the desired output voltage and the internal reference voltage of the MAX813LEPA+. A good starting point is to use the formula: R1 = R2 * (VOUT - VREF) / VREF, where VOUT is the desired output voltage and VREF is the internal reference voltage (typically 1.25V).
The MAX813LEPA+ can handle input voltages up to 28V, but it is recommended to keep the input voltage below 24V to ensure reliable operation and to prevent damage to the device.
To ensure stability, it is recommended to use a minimum output capacitance of 10uF, keep the input and output traces short and separate, and use a low-ESR output capacitor. Additionally, the device should be operated within the recommended input voltage range and the output voltage should be set within the recommended range.
The MAX813LEPA+ is rated for operation up to 125°C, but it is recommended to derate the device's performance at high temperatures. It is also important to ensure that the device is properly heatsinked and that the thermal design is adequate to prevent overheating.
MAX813LEPA+ datasheet
by Maxim Integrated Products
