Plano, Texas – November 18th, 2014 – For low output voltage power regulation in digital TV, monitor and other high density, fast changing point-of-load system architectures, Diodes Incorporated has introduced a series of synchronous buck converters. Employing adaptive constant on-time (AdCOT) control, the AP65450, AP65452 and AP65552 ensure high DC output accuracy, high efficiency and fast transient response.
For the 4A rated AP65450 converter, the AdCOT control supports seamless transition between a continuous conduction mode (CCM) at high loads to a discontinuous conduction mode (DCM) at light loads. The 4A AP65452 and 5A AP65552 variants are designed to remain in CCM to help achieve better system noise reduction and filtering.
Up to 92% efficient and with the added option of automatic light loading to further improve performance, the converters help to simplify compliance with regional low power consumption regulations. In addition, their wide, 4.5V to 18V, operating voltage range will suit 5V, 9V and 12V bus systems.
The devices’ high switching frequency of 650kHz – fixed for the AP65452 and AP65552, variable for the AP65450 under low load conditions – combined with the AdCOT control, enables designers to achieve good output stability while shrinking PCB size, through the use of fewer and smaller external inductive and capacitive components. To help save more space, the three devices are provided in the compact SO-8EP package.
To protect downstream components from damage and premature aging, the buck converters incorporate a wide range of protection features including, under voltage lockout, thermal shutdown and over current protection.
The AP65450, AP65452 and AP65552 buck converters from Diodes Incorporated are priced at $0.78USD each in 10k quantities. Further information is available from 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 and analog semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets. Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional 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’ corporate headquarters and Americas’ sales office are located in Plano, Texas. Design, marketing, and engineering centers are located in Plano; San Jose, California; Taipei, Taiwan; Manchester, England; and Neuhaus, Germany. Diodes’ wafer fabrication facilities are located in Kansas City, Missouri and Manchester, with two additional facilities located in Shanghai, China. Diodes has an assembly and test facility located in Shanghai, in Chengdu, China, as well as in Neuhaus and in Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Fort Worth, Texas; Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; Suwon; Tokyo, Japan; and Munich, Germany, with support offices throughout the world. For further information, including SEC filings, visit Diodes’ website at http://www.diodes.com.
