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US 11,686,780 B2Granted
Apparatus and method to debug a voltage regulator
AssigneeIntel Corporation
InventorsSankaran M. Menon, Vasudev Bibikar, P. Reddy Sahajananda, Sunghyun Koh, Naveendran Balasingam
Life of this patent
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Abstract
Described is an apparatus which comprises: a first voltage regulator (VR) having a reference input node; and a first multiplexer to provide a reference voltage to the reference input node and operable to select one of at least two different reference voltages as the reference voltage.
Claims19
An apparatus comprising:
- a plurality of regulators, each of which comprises a design-for-test (DFT) circuitry;
- and
- an interface coupled to the plurality of regulators, wherein the interface is to provide visibility to one or more analog signal paths associated with the plurality of regulators.
A system comprising:
- a power management integrated circuit (PMIC);
- a memory;
- a system-on-chip (SoC) to receive an input power supply from the PMIC, the SoC coupled to the memory, wherein the SoC comprises:
- a plurality of regulators, each of which comprises a design-for-test (DFT) circuitry;
- and
- an interface coupled to the plurality of regulators, wherein the interface is to provide visibility to one or more analog signal paths associated with the plurality of regulators;
- and
- a wireless interface to allow the SoC to communicate with another device.
5 more elements
An apparatus comprising:
- a design-for-test (DFT) circuitry coupled to a regulator, wherein the DFT circuitry comprises:
- a first multiplexer coupled to the regulator, wherein the first multiplexer is to selectively provide one of a plurality of references to a reference input of the regulator;
- and
- a second multiplexer coupled to the regulator, wherein the second multiplexer is to provide one of a plurality of controls to a comparator of the regulator;
- and
- an interface coupled to the regulator, wherein the interface is to provide visibility to one or more analog signal paths associated with the regulator.
3 more elements
Dependencies are inferred from the claim text.