The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 10, 2019

Filed:

Jan. 29, 2018
Applicant:

Dialog Semiconductor Gmbh, Kircheim/Teck-Nabern, GB;

Inventors:

Zakaria Mengad, Edinburgh, GB;

Mykhaylo Teplechuk, Edinburgh, GB;

Assignee:

Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); G05F 1/56 (2006.01); H02M 3/158 (2006.01); G05F 1/59 (2006.01); G05F 1/618 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
G05F 1/56 (2013.01); G05F 1/575 (2013.01); H02M 3/158 (2013.01); G05F 1/59 (2013.01); G05F 1/618 (2013.01); H02M 2001/0045 (2013.01);
Abstract

A low dropout (LDO) device with improved linear mode comprising an error amplifier, a programmable attenuation factor circuit coupled to said error amplifier, a feedback network whose input is electrically connected to said programmable attenuation factor circuit and whose output is electrically coupled to the negative input of said error amplifier, a high side (HS) pre-drive circuit whose input is a high impedance (HiZ) mode signal, a low side (LS) pre-drive circuit whose input is a low pull-down input mode signal, a high side (HS) output stage element electrically coupled to said high side (HS) pre-drive circuit, a low side (LS) output stage element electrically coupled to said low side (LS) pre-drive circuit, and a high side sense (HSENSE) output stage element whose gate is electrically coupled to said high side (HS) pre-drive circuit, and whose gate and source are electrically connected to the output of said error amplifier.


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