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Content Provider | IEEE Xplore Digital Library |
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Author | Yi-Ting Lee Chia-Ling Wei Chin-Hong Chen |
Copyright Year | 2010 |
Description | Author affiliation: Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan (Yi-Ting Lee; Chia-Ling Wei; Chin-Hong Chen) |
Abstract | An integrated low-output-ripple step-down DC-DC converter, which cascades a Buck converter with a low-dropout regulator (LDO), is presented. The output of the Buck converter can be used to supply digital circuits, while the LDO output is used to power analog circuits. The designed Buck converter can adaptively and automatically switch between the pulse-width modulation (PWM) and pulse-frequency modulation (PFM) to improve the conversion efficiency over the whole load current range. The chip was implemented by TSMC 0.35µm 2P4M polycide CMOS process. The measured maximal load current of the Buck converter was 280 mA, and the measured LDO maximal load current was 100 mA. |
Starting Page | 1373 |
Ending Page | 1378 |
File Size | 508247 |
Page Count | 6 |
File Format | |
ISBN | 9781424450459 |
e-ISBN | 9781424450466 |
DOI | 10.1109/ICIEA.2010.5514889 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2010-06-15 |
Publisher Place | Taiwan |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | DC-DC power converters Low voltage Pulse width modulation converters Buck converters Pulse width modulation Switches Current measurement Semiconductor device measurement Regulators Digital circuits switching regulator Buck converter DC-DC converter LDO step-down |
Content Type | Text |
Resource Type | Article |
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