Title:
LINEAR REGULATOR, SEMICONDUCTOR DEVICE, SWITCHING POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2023/228552
Kind Code:
A1
Abstract:
This linear regulator comprises: an N-channel type first transistor M11 configured to be connected between the application end of an input voltage Vin and the application end of a stabilization voltage VREG; an N-channel type second transistor M12 configured to mirror a bias current Ib flowing in itself by forming a current mirror type output stage 201 together with the first transistor M11 and to generate an output current Io flowing through the first transistor M11; a feedback control unit 202 that is configured to control the bias current Ib according to the difference between a feedback voltage VFB according to the stabilization voltage VREG and a prescribed reference voltage VREF; and a load 203 that is configured to draw out a first leakage current ILK1 from a control end common to both the first transistor M11 and the second transistor M12.
Inventors:
OKAJIMA KENICHI (JP)
Application Number:
PCT/JP2023/012464
Publication Date:
November 30, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
G05F1/56; H02M3/155
Foreign References:
| JP2010211721A | 2010-09-24 | |||
| JP2020071710A | 2020-05-07 | |||
| JP2000322136A | 2000-11-24 | |||
| US20190179398A1 | 2019-06-13 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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