Samsung patents circuit design for more stable power regulation
Samsung has filed a patent for a Low Dropout (LDO) regulator, a component that keeps voltage steady for electronic chips. The design uses a specific arrangement of transistors and a level shifter to manage power flow more effectively.
In the filing’s own words
A Low Dropout (LDO) regulator device is provided. The LDO regulator device includes an amplifier that provides at least one of a linear output voltage and a feedback voltage, the linear output voltage indicating an error signal from a reference voltage, a current mirror-based level shifter coupled with the amplifier, the current mirror-based level shifter configured to provide a stable reference current based on at least one of the linear output voltage and the feedback voltage, and a power Metal Oxide Semiconductor Field Effect Transistor (MOSFET) module including a first N-channel MOSFET (NMOS) transistor configured to provide a sourcing power supply to a load and a second NMOS transistor configured to provide a sinking power supply to the load. The first NMOS transistor is coupled to the amplifier via the current mirror-based level shifter, and the second NMOS transistor is coupled to the amplifier.
What exactly they claim (claim 1)
1. A Low Dropout (LDO) regulator device comprising: an amplifier configured to provide at least one of a linear output voltage and a feedback voltage, the linear output voltage indicating an error signal from a reference voltage; a current mirror-based level shifter coupled with the amplifier, the current mirror-based level shifter configured to provide a stable reference current based on at least one of the linear output voltage and the feedback voltage; and a power Metal Oxide Semiconductor Field Effect Transistor (MOSFET) module comprising a first N-channel MOSFET (NMOS) transistor configured to provide a sourcing power supply to a load and a second NMOS transistor configured to provide a sinking power supply to the load, wherein the first NMOS transistor is coupled to the amplifier via the current mirror-based level shifter, and the second NMOS transistor is coupled to the amplifier.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- LOW DROPOUT (LDO) REGULATOR DEVICE AND METHOD THEREOF
- Publication number
- US20260288184A1
- Application number
- 19551154
- Filed
- Feb 26, 2026
- Published
- Sep 24, 2026
- Inventors
- 2
- Claims
- 20
Classified under
G05F 1/575 Physics & computingH03K 19/018507 Electricity & electronicsMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.