Market Overview

Highly Configurable DC-DC Converter with Integrated H-Bridge from Diodes Incorporated

Share:

Diodes Incorporated (NASDAQ:DIOD), a leading global manufacturer and
supplier of high-quality application specific standard products within
the broad discrete, logic, analog and mixed-signal semiconductor
markets, today introduced the AP72200. This device is a high-current
synchronous buck/boost DC-DC converter with integrated high-side and
low-side H-Bridge MOSFETs. The AP72200 delivers up to 97% efficiency
with 1% voltage regulation accuracy, low quiescent current, and very low
output ripple.

The AP72200 employs Diodes Incorporated's proprietary buck/boost
current-mode control technology to achieve excellent voltage regulation
and a continuous output current of up to 2A. The design allows for
seamless transition between buck and boost operation while the wide 2.3V
to 5.5V input voltage range provides flexibility of supply and produces
between 2.6V to 5.14V output voltage.

The high level of integration, along with low quiescent current and wide
input voltage range, make the AP72200 well-suited for a wide range of
portable applications including smart phones, tablets, and other
battery-operated consumer devices.

Many of the features of the AP72200 are user-configurable through an
industry-standard I2C interface, which can operate in
standard mode, fast mode, fast-mode plus, and high-speed mode. This
includes programmable-output voltage ramp-up and ramp-down slew-rates,
output-active discharge, over-voltage protection threshold, and
over-current threshold. The AP72200 can also be configured to operate in
PWM or PFM mode, as well as in ultrasonic mode, which reduces the
switching frequency to avoid the generation of sub-harmonic frequencies
in the region of 20kHz that can cause interference in the audible
frequency range. The buck/boost output can also be disabled using the I2C
interface, allowing a master device to control the operation of the
regulator across a standard I2C bus. The output voltage can
be set to between 2.60V and 5.14V in 0.02V increments by programming the
device over I2C.

The integrated H-Bridge MOSFETs feature extremely low RDS(ON)
of 25mΩ and a shutdown current of less than 1µA. Quiescent current is as
low as 20µA when operating in non-switching mode and a typical of 29µA
in PFM mode. The switching frequency in continuous switching mode is
typically 2.5MHz, dropping to 27kHz in ultrasonic mode.

Further information is available at www.diodes.com.

About Diodes Incorporated

Diodes Incorporated (NASDAQ:DIOD), a Standard and Poor's SmallCap 600
and Russell 3000 Index company, is a leading global manufacturer and
supplier of high-quality application specific standard products within
the broad discrete, logic, analog and mixed-signal semiconductor
markets. Diodes serves the consumer electronics, computing,
communications, industrial, and automotive markets. Diodes' products
include diodes, rectifiers, transistors, MOSFETs, protection devices,
function-specific arrays, single gate logic, amplifiers and comparators,
Hall-effect and temperature sensors, power management devices, including
LED drivers, AC-DC converters and controllers, DC-DC switching and
linear voltage regulators, and voltage references along with special
function devices, such as USB power switches, load switches, voltage
supervisors, and motor controllers. Diodes also has timing,
connectivity, switching, and signal integrity solutions for high-speed
signals. Diodes' corporate headquarters and Americas' sales office are
located in Plano, Texas and Milpitas, California. Design, marketing, and
engineering centers are located in Plano; Milpitas; Taipei, Taiwan;
Taoyuan City, Taiwan; Zhubei City, Taiwan; Manchester, England; and
Neuhaus, Germany. Diodes' wafer fabrication facility is located in
Manchester, with an additional facility located in Shanghai, China.
Diodes has assembly and test facilities located in Shanghai, Jinan,
Chengdu, and Yangzhou, China, as well as in Hong Kong, Neuhaus and
Taipei. Additional engineering, sales, warehouse, and logistics offices
are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China;
Seongnam-si, South Korea; and Munich, Germany, with support offices
throughout the world.

Recent news releases, annual reports and SEC filings are available at
the Company's website: http://www.diodes.com.
Written requests may be sent directly to the Company, or they may be
e-mailed to: diodes-fin@diodes.com.

View Comments and Join the Discussion!