Diodes : Low drop out regulators improve system stability

Diodes Incorporated has introduced a range of low drop out linear regulators (LDOs) designed to drive low ESR (equivalent series resistance) 1µF MLCC capacitors in order to reduce system-level manufacturing cost and improve control loop stability and transient response.

The AP731x and AP733x are 150mA and 300mA CMOS LDOs, respectively, with a wide input voltage range of 2 to 6V that address both fixed and adjustable output voltage requirements. Fixed output voltage LDOs cover the range between 1.0 and 3.3V, while adjustable devices support the output voltage range between 0.8V to 5V.

With an output accuracy specified at 2%, the LDOs maintain consistent regulation for variations in specified temperature, line voltage and load conditions. The devices are rated for full industrial temperature range operation, from -40ºC to +85ºC.

The LDOs’ built-in over-current, over-temperature and short-circuit protection further improves circuit robustness and reliability. In portable and low power applications in particular, the devices’ quiescent current rating of 55µA provides attractive power saving opportunities.

Applications to benefit from these versatile LDOs include XDSL routers, wireless LAN cards, desktop and notebook computers, mouse and keyboard products and battery powered equipment.

Offered with industry standard pin-outs, the LDOs are being made available by Diodes in a range of green package options including SOT23, SOT25 and the PCB space and height saving DFN2020-6.

The 150mA AP731x LDOs are priced from $0.055 USD in 1k volumes, the 300mA AP733x LDOs are priced from $0.07 USD in 1k volumes.

About Diodes Incorporated

Diodes Incorporated (Nasdaq: DIOD), a Standard & 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 and analog semiconductor markets, serving the consumer electronics, computing, communications, industrial and automotive markets. Diodes’ products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional specific arrays, amplifiers and comparators, Hall-effect sensors and temperature sensors, power management devices including LED drivers, DC-DC switching regulators, linear voltage regulators and voltage references, along with special function devices including USB power switch, load switch, voltage supervisor and motor controllers. The Company’s corporate headquarters are located in Dallas, Texas. A sales, marketing, engineering and logistics office is located in Westlake Village, California. Design centers are located in Dallas; San Jose, California; Taipei, Taiwan; Manchester, England and Neuhaus, Germany. The Company’s wafer fabrication facilities are located in Kansas City, Missouri and Manchester; with two manufacturing facilities located in Shanghai, China, another in Neuhaus, and a joint venture facility located in Chengdu, China. Additional engineering, sales, warehouse and logistics offices are located in Taipei; Hong Kong; Manchester and Munich, Germany, with support offices located throughout the world.

For further information, including SEC filings, visit the Company’s website at

Rishi Vig, Diodes Incorporated, Zetex Technology Park, Chadderton, Oldham OL9 9LL,UK
Tel: +44 (0)161 622 4444
Fax: +44 (0)161 622 4469

Note: The above text is the public part of the press release obtained from the manufacturer (with minor modifications). EETimes Europe cannot be held responsible for the claims and statements made by the manufacturer. The text is intended as a supplement to the new product presentations in EETimes Europe magazine.

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