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A Single-Inductor Switching DC-DC Converter With Five Outputs and Ordered Power-Distributive Control

An integrated five-output single-inductor multiple-output dc-dc converter with ordered power-distributive control (OPDC) in a 0.5 mum Bi-CMOS process is presented. The converter has four main positive boost outputs programmable from +5 V to +12 V and one dependent negative output ranged from -12 V t...

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Published in:IEEE journal of solid-state circuits 2007-12, Vol.42 (12), p.2706-2714
Main Authors: LE, Hanh-Phuc, CHAE, Chang-Seok, LEE, Kwang-Chan, WANG, Se-Won, CHO, Gyu-Ha, CHO, Gyu-Hyeong
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cited_by cdi_FETCH-LOGICAL-c457t-f302f1727a8bdec275c05a7514550268abace41032464df8d1e4b35e8df1ca1f3
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container_end_page 2714
container_issue 12
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container_title IEEE journal of solid-state circuits
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creator LE, Hanh-Phuc
CHAE, Chang-Seok
LEE, Kwang-Chan
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CHO, Gyu-Ha
CHO, Gyu-Hyeong
description An integrated five-output single-inductor multiple-output dc-dc converter with ordered power-distributive control (OPDC) in a 0.5 mum Bi-CMOS process is presented. The converter has four main positive boost outputs programmable from +5 V to +12 V and one dependent negative output ranged from -12 V to -5 V. A maximum efficiency of 80.8% is achieved at a total output power of 450 mW, with a switching frequency of 700 kHz. The performance of the converter as a commercial product is successfully verified with a new control method and proposed circuits, including a full-waveform inductor-current sensing circuit, a variation-free frequency generator, and an in-rush-current-free soft-start method. With simplicity, flexibility, and reliability, the design enables shorter time-to-market in future extensions with more outputs and different operation requirements.
doi_str_mv 10.1109/JSSC.2007.908767
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identifier ISSN: 0018-9200
ispartof IEEE journal of solid-state circuits, 2007-12, Vol.42 (12), p.2706-2714
issn 0018-9200
1558-173X
language eng
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source IEEE Xplore (Online service)
subjects Applied sciences
Circuit properties
Circuits
Converters
DC-DC power converters
Design. Technologies. Operation analysis. Testing
Detection
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Flexibility
Frequency conversion
Frequency generators
Inductors
Integrated circuits
Magnetic devices
Ordered power-distributive control (OPDC)
Power generation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal convertors
single-inductor multiple-output (SIMO) converter
soft-start
Switching
Switching converters
Switching frequency
Time to market
Topology
Voltage
zero-current sensor
title A Single-Inductor Switching DC-DC Converter With Five Outputs and Ordered Power-Distributive Control
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