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A digital low dropout regulator (DLDO) with fast feedback and optimized frequency response

A low-dropout voltage regulator, error amplifier technology, used in instruments, control/regulating systems, regulating electrical variables, etc.

Pending Publication Date: 2020-10-16
WUXI PETABYTE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, this lower power situation can lead to voltage regulation challenges as there may be small differences between the supply and the load

Method used

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  • A digital low dropout regulator (DLDO) with fast feedback and optimized frequency response
  • A digital low dropout regulator (DLDO) with fast feedback and optimized frequency response
  • A digital low dropout regulator (DLDO) with fast feedback and optimized frequency response

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Embodiment Construction

[0025] While configurations and arrangements of the present invention have been discussed, it should be understood that this discussion is for illustration purposes only. It will be understood by those skilled in the art that other configurations and arrangements may be used without departing from the spirit and scope of the invention. It will be apparent to those skilled in the art that the present invention can also be used in a variety of other applications.

[0026] It should be noted that references to "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments" and the like in the description of the present invention mean that the described embodiments may include specific features, structures or characteristics, but not every embodiment necessarily includes that particular feature, structure or characteristic. Moreover, such expressions do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure or characteristic...

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Abstract

Embodiments relate to a digital low dropout regulator (DLDO) with fast feedback and optimized frequency response. More specifically, certain embodiments relate to ferroelectric memory circuit configurations. For example, a low dropout regulator may include a first circuit path configured to regulate an input voltage to an output voltage at a load, where the first path includes a first transistor.The apparatus may also include a second circuit path configured to feed back the error signal based on the input voltage and the output voltage, where the second circuit path includes an error amplifier.

Description

Background technique [0001] Embodiments of the present invention relate to a digital low dropout regulator (DLDO) with fast feedback and optimized frequency response. Certain embodiments can be applied to a variety of circuits. For example, certain embodiments may be used in any application that benefits from high bandwidth, low quiescent current, and small die size. For example, certain embodiments may be applied to ferroelectric memory circuit configurations. [0002] Although flash random-access memory (RAM) has been the popular choice for bit storage, ferroelectric RAM (FRAM) can provide a low-power alternative. Therefore, FRAM may be particularly suitable for low-power operating situations where power is limited, given its ability to use lower power than some alternatives. At the same time, this lower power situation can lead to voltage regulation challenges because there may be small differences between the supply and the load. When using a voltage regulator, if the ...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/56G05F1/575G05F1/59G05F1/468
Inventor 潘锋
Owner WUXI PETABYTE TECH CO LTD
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