The MAX845ESA+T is a high-frequency device, and proper layout and placement are crucial. 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 4-layer PCB with a dedicated power plane and a solid ground plane to reduce noise and EMI.
The MAX845ESA+T requires a proper bias voltage to operate correctly. The recommended biasing conditions are VCC = 3.3V, VIN = 2.5V to 5.5V, and IIN = 10mA to 100mA. It is also recommended to use a 10uF capacitor between VIN and GND to filter out noise and ensure stable operation.
The MAX845ESA+T has an operating temperature range of -40°C to +125°C. The device's performance may degrade at higher temperatures, with a decrease in output voltage and efficiency. It is recommended to operate the device within the specified temperature range to ensure optimal performance and reliability.
The MAX845ESA+T has built-in overvoltage protection (OVP) and undervoltage lockout (UVLO) features. However, it is still recommended to add external protection circuitry, such as a voltage supervisor or a reset IC, to ensure the device is protected from voltage transients and faults.
The recommended input capacitor value is 10uF to 22uF, with a voltage rating of 6.3V or higher. A ceramic or tantalum capacitor with low ESR (Equivalent Series Resistance) is recommended to minimize noise and ensure stable operation.
MAX845ESA+T datasheet
by Maxim Integrated Products
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