Invention Grant
- Patent Title: Low quiescent current load switch
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Application No.: US16119457Application Date: 2018-08-31
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Publication No.: US10432175B2Publication Date: 2019-10-01
- Inventor: Jae Won Choi , Sungho Beck , Abidur Rahman
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Tuenlap Chan; Charles A. Brill; Frank D. Cimino
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K7/08 ; H03K17/687 ; H03K5/12 ; H03K3/012 ; H02M3/26 ; H03K17/16

Abstract:
Apparatus, devices, and systems to provide a low quiescent current load switch are disclosed. A disclosed load switch circuit includes a transconductor to convert a voltage to a current input to a transistor gate, the current input to the transistor gate to control the gate to deliver power to a load from a power supply. The example circuit includes a resistor to provide power from a charge pump to the gate as controlled by the transconductor. A disclosed apparatus includes a driver to control a gate of a transistor, the gate to enable the transistor to deliver power to a load from a power supply when the gate is activated, and a gate slope control to control a rate of change over time of a voltage associated with the gate to activate the gate and to disable the driver when the gate is activated.
Public/Granted literature
- US20190214973A1 LOW QUIESCENT CURRENT LOAD SWITCH Public/Granted day:2019-07-11
Information query