Intel Corporation

Yi-Chun Shih

Rinkle Jain

Muhammad M Khellah

James W Tschanz

Stephen Kim

Kaushik Mazumdar

Vaibhav Vaidya

Described is an apparatus which comprises: a plurality of transistors coupled to an input power supply and to a load; a first comparator with a first node coupled to the load, and a second node coupled to a first reference; a second comparator with a first node coupled to the load, and a second node coupled to a second reference, the second reference being different from the first reference; and a logic unit to receive output of the first comparator and output of the second comparator, the logic unit to turn on or off transistors of the plurality of transistors according to outputs of the first and second comparators.

Dual loop digital low drop regulator and current sharing control apparatus for distributable voltage regulators

An output stage has an input supply node to receive an input power supply and an output node to provide an output supply to a load. An amplifier is used to control current strength of the output stage according to the output supply and a reference voltage. A hysteresis unit is used to monitor the output supply and operable to control the current strength of the output stage according to a voltage level of the output supply. In one embodiment, a plurality of charge pumps are used to adjust current strength of the output stage. A logic unit is used to monitor the output supply and operable to control the plurality of charge pumps according to a voltage level of the output supply and one or more reference voltages.

Low dropout regulator with hysteretic control

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Hillsboro, OR, United States of America

Yi-Chun Shih