Published May 1, 2014 | Version v1
Journal article Metadata-only

A voltage-mode DC—DC buck converter with fast output voltage-tracking speed and wide output voltage range

Creators

  • 1. The 55th Research Institute of China Electronic Technology Group Corporation, Nanjing 210016 (China)
  • 2. National ASIC System Engineering Research Center, Southeast University, Nanjing 210096 (China)

Description

A high switching frequency voltage-mode buck converter with fast voltage-tracking speed and wide output voltage range has been proposed. A novel error amplifier (EA) is presented to achieve a high DC gain and get high phase margin, including a resistor and capacitor net, a unit gain block and a high gain block. The investigated converter has been fabricated with GF 0.35 μm CMOS process and can operate at 6 MHz with the output voltage range from 0.6 to 3.4 V. The experimental results show that the voltage-tracking speed can achieve 8.8 μs/V for up-tracking and 6 μs/V for down-tracking. Besides, the recovery time is less than 8 μs while the load current suddenly changes 400 mA. (semiconductor integrated circuits)

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-4926/35/5/055005

Additional details

Identifiers

DOI
10.1088/1674-4926/35/5/055005;

Publishing Information

Journal Title
Journal of Semiconductors
Journal Volume
35
Journal Issue
5
Journal Page Range
[5 p.]
ISSN
1674-4926

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47018732
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AMPLIFIERS; ELECTRIC POTENTIAL; GAIN; INTEGRATED CIRCUITS; MHZ RANGE; RESISTORS; SEMICONDUCTOR MATERIALS
Descriptors DEC
AMPLIFICATION; ELECTRICAL EQUIPMENT; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; FREQUENCY RANGE; MATERIALS; MICROELECTRONIC CIRCUITS