Asynchronous step-down dcdc chip and bootstrap circuit based on asynchronous step-down dcdc chip
A bootstrap circuit and chip technology, applied in electrical components, adjusting electrical variables, output power conversion devices, etc., can solve problems such as the inability of the bootstrap capacitor to be charged, and achieve the effect of solving the inability to charge
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[0045] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.
[0046] The invention discloses an asynchronous step-down DCDC chip, which comprises an input terminal, a first output terminal and a second output terminal, the input terminal is connected to the input voltage, and the voltage difference between the first output terminal and the second output terminal is V BOOT ,in:
[0047] A plurality of first MOS transistors are provided between the input end and the first output end;
[0048] A BOOT reference voltage unit is provided between the gate of the first MOS transistor and the second output terminal;
[0049] A second MOS transistor is provided between the second output t...
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