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Synchronous Buck Controllers regulate voltages down to 0.8 V.

Press Release Summary:



Supporting input power from 2.75-20 V, Models ADP1882 and ADP1883 provide optimal transient response through use of constant on-time, valley-current-mode control system. Devices drive all N-channel power stages to regulate output voltages as low as 0.8 V with ±1.0% accuracy to as high as 7 V with output up to 15 A. Available in 300 kHz, 600 kHz, and 1 MHz options, ICs are suited for intermediate rail or point-of-load generation in instrumentation, telecommunications, and networking applications.



Original Press Release:



Analog Devices Expands Range of Versatile, Synchronous Buck Controllers



- ADI's ADP1882 and ADP1883 buck controllers incorporate constant on-time and valley current-mode techniques to drive all N-channel power stages, regulating output voltages as low as 0.8 V.

NORWOOD, Mass.-- Analog Devices, Inc. (ADI), a global leader in high-performance semiconductors for signal-processing applications, today introduced two current-mode, synchronous buck controllers that support input-power voltages ranging from 2.75 V to 20 V. The ADP1882 and ADP1883 synchronous buck controllers provide superior transient response through the use of a constant on-time, valley-current-mode control system. In addition, the valley-current-mode control architecture allows the ADP1882 and ADP1883 to offer optimum performance at low duty cycles and drive all N-channel power stages to regulate output voltages as low as 0.8 V with ±1.0 percent accuracy to as high as 7 V with output up to 15 amps. These new and versatile devices are well suited to intermediate rail or point-of-load generation in consumer, industrial instrumentation, telecommunications, and networking applications.

"The new ADP1882 and ADP1883 buck controllers offer enhanced performance at low duty cycles by using a valley-current-mode control architecture," said Laurence McGarry, marketing manager, Power Management Products Group. "Each is available in three frequency options: 300 kHz, 600 kHz, and 1 MHz. The ADP1883 offers an additional power saving mode capable of pulse skipping to maintain output regulation while improving system efficiency at light loads."

ADP1882 and ADP1883 Synchronous Buck Controller Features and Benefits

o An internally-fixed, soft-start period enables a limited input in-rush current from the input supply during startup

o Reverse current protection during soft-start provides a pre-charged output

o Constant on-time architecture enables fast transient response

o A current-sense resistor is not required allowing improved system efficiency and ease-of-use

o Thermal overload and short circuit protection allows for a more robust system design

The introduction of the ADP1882 and ADP1883 devices marks ADI's continued expansion of the switching controller and regulator product families - following recent announcements of the ADP1870/ADP1871 and ADP1872/ADP1873 constant on-time, synchronous buck controllers and the ADP1877 fixed-frequency, dual buck controller. To download the data sheet, visit www.analog.com/pr/ADP1882ds.

Availability and Pricing
Product      Samples     Availability       Temperature    Price Each      Packaging
Range Per 1000
ADP1882
ADP1883 Now Now -40°C to +125°C $1.03 10-Lead MSOP

For more information, visit www.analog.com/pr/ADP1882 or www.analog.com/pr/ADP1883 . For more information on ADI's integrated multi-function power portfolio, visit www.analog.com/power.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged throughout the industry as the world leader in data-conversion and signal-conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits for analog and digital signal-processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker "ADI" and is included in the S&P 500 Index. www.analog.com

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