Low-dropout voltage regulator circuit
US-12164317-B2 · Dec 10, 2024 · US
High power supply rejection ratio (PSRR) and low dropout regulator
US8928296B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8928296-B2 |
| Application number | US-201113112335-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 20, 2011 |
| Priority date | Mar 1, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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A low dropout voltage regulator (LDO) includes first and second amplifiers and a current mirror. The first amplifier includes a first input receiving a reference voltage and a second input receiving a voltage proportional to an output of the LDO. The current mirror includes an input current at a first end of the current mirror to an output current at a second end of the current mirror, the input current controlled by an output of the first amplifier and the output current being supplied to the output of the LDO. The second amplifier includes a first input coupled to the first end of the current mirror and a second input coupled to the second end of the current mirror.
First claim
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What is claimed is: 1. A low dropout voltage regulator (LDO), comprising: a first amplifier including a first input for receiving a reference voltage and a second input for receiving a voltage proportional to an output of the LDO; a current mirror that mirrors an input current at a first end of the current mirror to an output current at a second end of the current mirror, the input current of the current mirror being controlled by an output of the first amplifier and the output…
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Frequently asked questions
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- What does patent US8928296B2 cover?
- A low dropout voltage regulator (LDO) includes first and second amplifiers and a current mirror. The first amplifier includes a first input receiving a reference voltage and a second input receiving a voltage proportional to an output of the LDO. The current mirror includes an input current at a first end of the current mirror to an output current at a second end of the current mirror, the inpu…
- Who is the assignee on this patent?
- Iriarte Santiago, Marinas Alberto, Analog Devices Inc
- What technology area does this patent fall under?
- Primary CPC classification G05F1/56. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).