The MAX809MEUR+ is a sensitive device and requires careful layout and placement to ensure optimal performance. It is recommended to place the device close to the power source, use a solid ground plane, and keep the input and output traces short and separate to minimize noise and coupling. Additionally, it is recommended to use a bypass capacitor between the VIN and GND pins to filter out high-frequency noise.
The MAX809MEUR+ has a specific power-up sequence requirement to ensure proper operation. It is recommended to power up the device in the following sequence: GND, VIN, and then EN. This sequence ensures that the internal voltage regulator is properly initialized and the device is configured correctly.
The MAX809MEUR+ has an absolute maximum input voltage rating of 6.5V. Exceeding this voltage can cause permanent damage to the device. It is recommended to ensure that the input voltage is within the recommended operating range of 2.7V to 5.5V to ensure reliable operation.
The output voltage of the MAX809MEUR+ is fixed at 3.3V. However, the output voltage can be adjusted by using an external resistor divider network between the VOUT and GND pins. The output voltage can be calculated using the formula: VOUT = 3.3V x (R1 / (R1 + R2)), where R1 and R2 are the resistors in the divider network.
The quiescent current of the MAX809MEUR+ is typically around 10μA when the device is in shutdown mode (EN = 0). However, the quiescent current can increase to around 100μA when the device is in active mode (EN = 1). This current is dependent on the input voltage and the output load.
MAX809MEUR+ datasheet
by Maxim Integrated Products
