Invention Grant
- Patent Title: Integrated circuit with modulable low dropout voltage regulator
- Patent Title (中): 具有可调式低压差稳压器的集成电路
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Application No.: US11179782Application Date: 2005-07-12
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Publication No.: US07218084B2Publication Date: 2007-05-15
- Inventor: Alexandre Pons , Fabienne Grigis
- Applicant: Alexandre Pons , Fabienne Grigis
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics S.A.
- Current Assignee: STMicroelectronics S.A.
- Current Assignee Address: FR Montrouge
- Agency: Fleit, Kain, Gibbons, Gutman, Bongini & Bianco P.L.
- Agent Lisa K. Jorgenson; Jon A. Gibbons
- Priority: FR0407853 20040715
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A low dropout voltage (LDO) regulator comprises an output stage (EtS) of the amplifier (AMP), which has a main output and n auxiliary outputs which can respectively deliver a main control voltage (VGPRINC) and n auxiliary control voltages (VG1, . . . , VGn); and a power stage (EtP) which has a main power transistor (PmosPrinc), controlled at its gate by the main control voltage (VGPRINC), and p power modules (module 1, . . . , module n) of identical layout with p less than or equal to n, respectively having p auxiliary power transistors (PMos1, . . . , PMosn) each controlled at their gate by p auxiliary control voltages (VG1, . . . , VGn). The number p is selected as a function of an intended maximum output current.
Public/Granted literature
- US20060049812A1 Integrated circuit with modulable low dropout voltage regulator Public/Granted day:2006-03-09
Information query
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