The idea is that the second p-chl mosfet is the load switching element and the first one is the reverse voltage protection.
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Simulations:
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LTC4359
| Warning |
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This chip did not work well for our application. Since it trying to keep a 30mV drop between IN and OUT it is regulating the gate voltage to increase the resistance of the mosfets when the load current is low, this then results in complete cutoffs when we switch the motors from 100% to 0% since we go from a high current load to a low one. |
https://www.analog.com/media/en/technical-documentation/user-guides/dc1676af.pdf
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