Figure 2 of the MAX1722x datasheet states only the MAX17221/3/5 can be driven by a push-pull GPIO, implying that it cannot be done by the MAX17220 or MAX17222. That is not entirely true; the MAX17220 and…
No, there is no built in reverse-battery protection in this part. Any negative voltage below -0.3V will likely damage the input pin. You would need an external diode to clamp a negative voltage and prevent…
When a typical boost converter turns off, there will be a direct current path between the input and output. The output voltage will be one diode voltage drop lower than the input voltage, so it's not really…
Since the MAX17222 is a hysteric converter, Bode plot measurement is not valid. Even if it were not a hysteric converter, we wouldn't be able to measure the Bode plot on the bench since there is no external…
The MAX17222 will work down to 0.4V input, but only for small output currents, less than 1mA. This is primarily due to the duty cycle limitation of the device.
At such a low Vin, it's not likely we are…
Answer: If Vin is higher than Vout, the output voltage will follow the input voltage minus a diode drop. The diode is internal to the MAX17222. For example, for a V_OUT of 4.2V and a V_IN normally at 3V…
1. Low quiescent current. Our quiescent current is as low as 300nA
2. True Shutdown Mode. When our device is disabled, the output is disconnected from the input and is 0V instead of a voltage that…
Failure of semiconductor devices happen due to overvoltage and overcurrent events primarily. Please refer to the absolute maximum ratings in the MAX17220-MAX17225 datasheet to ensure that the operation…
If EN is high and Vin>Vout, the output voltage will follow the input voltage minus a diode drop. The diode is internal to the MAX17222. For example, if a Vout of 4.2V is chosen and a Vin is normally at…
Source collapse refers to a drop in voltage of the source (dark solar cell). This happens when excess current is being drawn form the source. For example in a dark solar cell that typically outputs 1V…
