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US 2026/0066786 A1Published application
Integrated voltage regulator
AssigneeIntel Corporation
InventorsKeng CHEN, Huanhuan ZHANG, Kishan JOSHI, Avinash SHREEPATHI BHAT, Arvind RAGHAVAN
Life of this patent
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Abstract
In some embodiments, a voltage regulator with circuitry to facilitate DCM to CCM transitions are provided to mitigate against excessive voltage droops.
Claims20
An apparatus, comprising:
- a pulse generator circuit including a duty cycle (DCC) control input node;
- and
- a multiplexer switch including:
- (i) a switch output coupled to the DCC input node, (ii) a first switch input coupled to an error amplifier output node, and (iii) a second switch input coupled to an output node of a DCC alternate circuit.
1 more element
An apparatus, comprising:
- a driver circuit including (i) an output coupled to a power switch control node of a switching voltage regulator, and (ii) a driver circuit input node;
- and
- a pulse width modulator (PWM) circuit including a PWM output node coupled to the driver circuit input node, the PWM circuit including an error amplifier that is coupled to a zero crossing detection (ZCD) circuit to select the error amplifier to operate in one of at least two different modes based on whether the voltage regulator is to be in a continuous or discontinuous current mode.
An apparatus, comprising:
- a first die in a multi-chip integrated circuit (IC) package;
- and
- a second die in the IC package, the second die being coupled with the first die, the first die including at least one buck type switching voltage regulator that includes:
- a pulse generator circuit including a duty cycle (DCC) control input node;
- and
- a multiplexer switch including:
- (i) a switch output coupled to the DCC input node, (ii) a first switch input coupled to an error amplifier output node, and (iii) a second switch input coupled to an output node of a DCC alternate circuit.
4 more elements
Dependencies are inferred from the claim text.