A charge pump circuit includes a charge pump configured to increase a voltage of an input signal to generate a voltage-boosted input signal, output the voltage-boosted input signal in response to a determination that the voltage-boosted input signal is greater than or equal to a threshold, and connect the charge pump to a supply voltage to pre-charge the charge pump in response to a determination that the voltage-boosted input signal is less than the threshold. The charge pump circuit includes bandgap reference generator configured to receive the voltage-boosted input signal and output, based on the voltage-boosted input signal, a voltage reference signal to a device that operates in accordance with the supply voltage.

A charge pump circuit has load driven clock frequency management. The charge pump circuit includes a CCO generating a CCO output signal that has a frequency generally proportional to a feedback current, and a charge pump operated by the CCO output signal and boosting a supply voltage to produce a charge pump output voltage at an output coupled to a load. A current sensing circuit senses a load current drawn by the load and generates the feedback current as having a magnitude that varies as a function of the sensed load current if a magnitude of the load current is between a lower load current threshold and an upper load current threshold. The magnitude of the feedback current does not vary with the sensed load current if the magnitude of the sensed load current is not between the lower load current threshold and the upper load current threshold.

An electronic device includes: a clock booster circuit configured to store charges on doubler capacitors therein, wherein each doubler capacitor is connected to a corresponding clock signal; secondary booster circuit including booster capacitors that are each coupled to one of the doubler capacitors, the secondary booster circuit configured to provide one or more stage outputs based on boosting the charges stored on the doubler capacitors; and connecting switches that each connect one of the doubler capacitors to one of the booster capacitors during recycling durations, wherein the recycling duration occurs after generating the one or more stage outputs; wherein the clock signals correspond to a state during the recycling duration.

An electronic device includes: a clock booster configured to generate a boosted intermediate voltage greater than a source voltage, wherein the clock booster includes: a controller capacitor configured to store energy for providing a gate signal, wherein the gate signal is for controlling charging operations to generate the boosted intermediate voltage based on the source voltage, and a booster capacitor configured to store energy according to the gate signal for providing the boosted intermediate voltage, wherein the booster capacitor has greater capacitance level than the controller capacitor; and a secondary booster operatively coupled to the clock booster, the secondary booster configured to generate an output voltage based on the boosted intermediate voltage, wherein the output voltage is greater than both the source voltage and the boosted intermediate voltage.

A charge pump, applied to an OLED display panel and coupled to an output capacitor, includes a first switch to a tenth switch and a first capacitor to a third capacitor. The first switch and second switch are coupled in series between a first voltage and a second voltage lower than first voltage. The third switch is coupled to second voltage. The sixth switch is coupled to first voltage. The seventh switch is coupled to second voltage. The fourth switch, eighth switch and tenth switch are coupled to output capacitor. The first capacitor is coupled between first switch and second switch. The second capacitor is coupled between fifth switch and sixth switch. The third capacitor is coupled between seventh switch and eighth switch. The charge pump is operated in a first phase, a second-A phase, the first phase and a second-B phase in order to provide negative output voltage.

A bootstrap circuit including: a charge pump; a power unit including a bootstrap capacitor, wherein the bootstrap capacitor is charged using an output voltage of the charge pump; and a switch driver for generating a bootstrap signal based on a clock signal and an analog signal, wherein the analog signal is input to an analog switch, the switch driver for controlling the analog switch using the bootstrap signal, and including a first body switch connected between an input terminal and a body of the analog switch.

Devices and methods related to dual output charge pumps. According to some implementation, a charge pump includes a boost charge pump circuit and a buck charge pump circuit sharing a common flying capacitance. In some implementations, the boost pump circuit includes an input node and a boosted-voltage output node, and the buck charge pump circuit includes the input node and a divided-voltage output node. In some implementations, the boosted-voltage includes 2Vin, and the divided-voltage includes Vin/2, Vin being an input voltage at the input node. In some implementations, the boost pump circuit further includes a first holding capacitance that couples the boosted-voltage output node to a ground. In some implementations, the buck pump circuit further includes a second holding capacitance that couples the divided-voltage output node to the ground.

A bootstrap circuit including: a charge pump; a power unit including a bootstrap capacitor, wherein the bootstrap capacitor is charged using an output voltage of the charge pump; and a switch driver for generating a bootstrap signal based on a clock signal and an analog signal, wherein the analog signal is input to an analog switch, the switch driver for controlling the analog switch using the bootstrap signal, and including a first body switch connected between an input terminal and a body of the analog switch.

Methods produce IC devices that include a multiplexor that is electrically connected to a bandgap reference generator and a charge pump. The multiplexor receives voltage levels of a voltage-boosted clock signal being output by the charge pump to the bandgap reference generator. The multiplexor outputs, to the charge pump, either: a retry signal (if the voltage levels of the voltage-boosted clock signal being output by the charge pump are below a voltage threshold) or a pump signal (if the voltage levels of the voltage-boosted clock signal being output by the charge pump are not below the voltage threshold). The pump signal causes the charge pump to output the voltage-boosted clock signal to the bandgap reference generator. The retry signal causes the charge pump to not output the voltage-boosted clock signal to the bandgap reference generator, and instead to precharge the charge pump.

A semiconductor device including: a semiconductor substrate; at least one circuit block provided on a main surface of the semiconductor substrate and having a predetermined function; a wiring layer including plural metal layers that connect the circuit block; and plural capacitors including a first capacitor connected to the circuit block and that uses the plurality of metal layers, and a second capacitor that uses an active area disposed within the main surface of the semiconductor substrate, wherein at least one of the first capacitor and at least one of the second capacitor are stacked in a stacking direction of layers of the semiconductor.