Invention Grant
- Patent Title: Low dropout regulator (LDO) circuit with smooth pass transistor partitioning
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Application No.: US16810108Application Date: 2020-03-05
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Publication No.: US11435771B2Publication Date: 2022-09-06
- Inventor: Joseph Alan Sankman , Raveesh Magod Ramakrishna
- 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 Mark A. Valetti; Charles A. Brill; Frank D. Cimino
- Main IPC: G05F1/575
- IPC: G05F1/575 ; G05F1/59

Abstract:
A system includes a battery. The system also includes a low dropout regulator (LDO) circuit with an input coupled to the battery and the LDO circuit. The system also includes a load coupled to an output of the LDO circuit. The LDO circuit includes an error amplifier and a control circuit coupled to the error amplifier. The LDO circuit also includes a first pass transistor coupled to the control circuit and configured to provide a first pass current as a function of load current according to a first continuous conduction curve. The LDO circuit also includes a second pass transistor coupled to the control circuit and configured to provide a second pass current as a function of load current according to a second continuous conduction curve.
Public/Granted literature
- US20200285261A1 LOW DROPOUT REGULATOR (LDO) CIRCUIT WITH SMOOTH PASS TRANSISTOR PARTITIONING Public/Granted day:2020-09-10
Information query
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