Abstract:
Described is an apparatus which comprises: a first power supply node to supply input power supply; a power transistor coupled to the first power supply node; a multiplexer to selectively control gate terminal of the power transistor according to whether the power transistor is to operate as part of a low dropout voltage regulator (LDO-VR) or is to operate as a digital switch; and a second power supply node coupled to the power transistor, the second power supply node to provide power supply to a load from the power transistor.
Abstract:
Described is a linear voltage regulator circuit comprising a first voltage regulator comprising a first source follower having a first node to provide a first power supply, and a second node different from the first node; and a second voltage regulator comprising a second source follower having a first node to provide a second power supply, and a second node different from the first node, wherein the second nodes of the first and second voltage regulators are electrically shorted.
Abstract:
Some embodiments include apparatuses and methods having a digitally controlled oscillator (DCO) in a digital phase-locked loop (PLL) and a control loop. The DCO can generate an output signal having a frequency based on a value of a digital information. The control loop can adjust a value of a supply voltage of the DCO based on the value the digital information. Additional apparatuses and methods are described.
Abstract:
Described is an apparatus which comprises: a bandgap core to provide a control signal; and an output stage coupled to the bandgap core, the output stage to receive the control signal and to provide a low impedance output at an output node.
Abstract:
A disable module may be coupled to an analog circuit of an electronic circuit. The disable module may detect an input voltage that is supplied to the analog circuit, and may disable (such as by powering off) the analog circuit if the input voltage is below a reference value. The reference value may be set at a voltage level at or below a maximum voltage that may be present across a transistor in the analog circuit. Accordingly, the analog circuit may be disabled without damage to the transistors of the analog circuit. The disable module may detect whether the input voltage is below the reference value level by comparing the input voltage to a reference voltage. The electronic circuit may include a voltage regulator, and the voltage regulator may include the analog circuit.