The MAX6823LUK+T requires careful layout and placement to ensure optimal performance. It is recommended to place the device close to the battery, use short traces, and avoid routing sensitive signals near the device. Additionally, a solid ground plane and a decoupling capacitor (e.g., 10uF) between VCC and GND are recommended.
The values of R1 and R2 depend on the desired output voltage and the input voltage range. A general guideline is to choose R1 and R2 such that the ratio of R1 to R2 is equal to the ratio of the desired output voltage to the input voltage. For example, if the input voltage is 5V and the desired output voltage is 3.3V, R1 can be 2kΩ and R2 can be 1kΩ.
The MAX6823LUK+T can sink or source up to 100mA of current. However, it is recommended to limit the current to 50mA or less to ensure reliable operation and to prevent overheating.
The MAX6823LUK+T requires a proper power-up sequence to ensure reliable operation. It is recommended to power up the device with a slow ramp-up of the input voltage (e.g., 10ms) and to wait for at least 10us after power-up before enabling the output.
The MAX6823LUK+T's performance and accuracy can be affected by temperature. The device's output voltage accuracy can vary by up to ±2% over the operating temperature range of -40°C to +125°C. It is recommended to consider temperature compensation or calibration if high accuracy is required.
MAX6823LUK+T datasheet
by Maxim Integrated Products
