Invention Grant
- Patent Title: Voltage regulator for a serializer/deserializer communication application
- Patent Title (中): 用于串行器/解串器通信应用的稳压器
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Application No.: US14508586Application Date: 2014-10-07
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Publication No.: US09178563B2Publication Date: 2015-11-03
- Inventor: Guojun Ren , Karthik S. Gopalakrishnan
- Applicant: INPHI CORPORATION
- Applicant Address: US CA Santa Clara
- Assignee: Inphi Corporation
- Current Assignee: Inphi Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Ogawa P.C.
- Agent Richard T. Ogawa
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04L5/16 ; H04B3/30 ; G05F1/10 ; H04L25/06

Abstract:
The voltage regulator device has a wide band amplifier having an input reference voltage, Vref and an input feedback voltage, Vfbk. The device has a source follower coupled to the wide band amplifier, the source follower coupled to an output of the wide band amplifier. The device has a VDD source, a regulator output, and a current source coupled to the source follower and the VDD source. The device has a low frequency path comprising a first transistor. The first transistor has a first gate, a first source, and a first drain. The first source is coupled to the VDD source. The first gate is coupled to a slow node, and the first drain is coupled to the regulator output. The low frequency path comprises a RC network, which has a capacitor, a resistor, and the slow node configured between the resistor and the capacitor. The device has a high frequency path comprising a second transistor. The second transistor has a second gate, a second source, and a second drain. The second source is coupled to the VDD source. The second gate is coupled to a fast node, and the second drain is coupled to the regulator output.
Public/Granted literature
- US20150023398A1 VOLTAGE REGULATOR FOR A SERIALIZER/DESERIALIZER COMMUNICATION APPLICATION Public/Granted day:2015-01-22
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