Fully integrated switched-capacitor voltage converter with regulated output

Valery E. Shunkov, Oleg N. Kus, Vitaly Y. Prokopyev, Vladimir A. Butuzov, Yury I. Bocharov

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

1 Цитирования (Scopus)

Аннотация

The paper presents the integrated circuit (IC) of the inductorless switched-mode DC-DC voltage converter. The converter is based on a novel multiphase switched-capacitor architecture. It uses reconfigurable charge-pump circuits and a multiloop discrete and continuous time control technique. The control unit performs a converter topology selection, a value of switched capacitors selection as well as a conversion frequency regulation. The chip also comprises a built-in low-dropout linear regulator. The on-chip reference of 1.0 V is powered by a PSRR-enhancing pre-regulator. The core of bandgap reference uses a dynamic threshold voltage MOSFET (DTMOS) transistors instead of generally used diode-connected vertical p-n-p bipolar transistors. The IC has been implemented in a commercially available 180 nm CMOS technology with five metal layers and stacked metal-insulator-metal capacitors. It is intended for use as a standalong IC for converting power rail voltages or lithium electrochemical cell voltages 2.8 V-5.5 V conversion into power supply voltages 1.2 V-3.3 V of the modern microcontrollers and other low-voltage ICs. It also may be used as a embedded IP block of a system-on-chip. The paper discusses features of regulation in a multiphase system over a wide range of input and output voltages and load currents. It also presents the results of the IC samples evaluation.

Язык оригиналаанглийский
Название основной публикацииMoscow Workshop on Electronic and Networking Technologies, MWENT 2018 - Proceedings
ИздательInstitute of Electrical and Electronics Engineers Inc.
Страницы1-4
Число страниц4
Том2018-March
ISBN (электронное издание)9781538634974
DOI
СостояниеОпубликовано - 12 апр 2018
Событие1st Moscow Workshop on Electronic and Networking Technologies, MWENT 2018 - Moscow, Российская Федерация
Продолжительность: 14 мар 201816 мар 2018

Конференция

Конференция1st Moscow Workshop on Electronic and Networking Technologies, MWENT 2018
СтранаРоссийская Федерация
ГородMoscow
Период14.03.201816.03.2018

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