Apparatuses and methods for voltage dependent delay

An apparatus comprising:

• a memory comprising:
• a voltage pump configured to provide an output voltage comprising:
• a control circuit configured to provide a control signal;
• a pump core configured to receive the control signal and configured to provide a pump output signal responsive at least in part to the control signal;
• a resistance coupled between the pump core and a first voltage;
• a capacitance coupled between the pump core and the first voltage parallel to the resistance, wherein the output voltage is provided at a node coupled to the pump core, resistance, and capacitance;
• and
• a comparator configured to receive the pump output signal and a reference voltage and provide a comparator output signal to the control circuit;
• and
• an oscillator coupled to the voltage pump, the oscillator including a delay circuit and configured to provide an oscillating output signal to the voltage pump having a frequency based on a delay of the delay circuit, the delay circuit including an inverter having an output node and an impedance circuit coupled to the output node, wherein the impedance circuit is configured to receive a second voltage and have an impedance that changes responsive to the second voltage, wherein the delay is based, at least in part, on the impedance,
• wherein the oscillating output signal is provided to the control circuit and the control signal is based at least in part, on the oscillating output signal and the comparator output signal such that the output voltage of the voltage pump is based, at least in part, on the frequency of the oscillating output signal.