The recommended layout and routing for the MAX71020AEUI+ involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended. Additionally, the device should be placed near the power source and the output capacitors should be placed close to the load.
The selection of output capacitors for the MAX71020AEUI+ depends on the output voltage, output current, and ripple requirements. A low-ESR ceramic capacitor with a value between 10uF to 22uF is recommended. The capacitor should be rated for the output voltage and should have a ripple current rating that meets the output current requirement.
The MAX71020AEUI+ can handle an input voltage up to 5.5V, but it is recommended to operate the device within the specified input voltage range of 2.7V to 5.5V to ensure optimal performance and reliability.
The MAX71020AEUI+ has a built-in overcurrent protection feature that can be enabled by connecting the OC pin to the VIN pin through a resistor. The value of the resistor determines the overcurrent threshold. Additionally, an external current sense resistor can be used to monitor the output current and implement overcurrent protection.
The MAX71020AEUI+ has a thermal derating of 2.5mA/°C above 25°C. This means that the output current capability of the device decreases as the temperature increases. The device should be operated within the specified temperature range to ensure optimal performance and reliability.
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