Voltage pump IC using only two external connection capacitor can provide XC6351) or reverse voltage (with pressure (XC9801). And use the DC/DC controller choke compared can be realized, voltage pump IC is much smaller circuit. XC6351 series adopt SOT - 26 encapsulation. XC9801 provide 2 times, and USES the MSOP pressor - 8A encapsulation.

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