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DC/DC converters

Linear releases dual-channel DC/DC converters

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By Linear Technology now part of Analog Devices on 10th November 200915th December 2015

Product Details Supplier Info More products

Linear Technology has introduced the LT3582, LT3582-5 and LT3582-12 dual-channel DC/DC converters.

These deliver positive and negative outputs required in many biasing applications such as active matrix OLED (organic light-emitting diode) displays as well as CCD (charge-coupled device) applications.

The LT3582/-5/-12 offer an I2C interface that can dynamically program output voltages, power sequencing and output voltage ramps as the application requires.

Alternatively, these parameters can be set in manufacturing and made permanent via the built in non-volatile OTP (one-time programmable) memory.

The LT3582’s positive-output voltage can be set between 3.2 and 12.775V in 25mV steps, whereas the negative output can be set between -1.2 and -13.95V in 50mV steps.

The LT3582-5 and LT3582-12 are preconfigured with +/-5V and +/-12V outputs respectively, useful in many signal-conditioning applications.

The LT3582 series includes two monolithic converters, one boost and one inverting.

The boost converter has an integrated power switch and output disconnect switch, whereas the inverting converter uses a single inductor topology with an integrated power switch.

Both boost and inverting converters use a novel control scheme resulting in low-output voltage ripple and allowing for high conversion-efficiency over a wide load-current range.

The converters’ input-voltage range of 2.55 to 5.5V make them ideal for Li-Ion powered applications with efficiencies as high as 88 per cent.

These features of the LT3582 series, when combined with less than 325uA of quiescent current, can maximise battery life.

The combination of tiny external components, no feedback resistors and a tiny 3 x 3mm QFN package provides a tiny (less than 50mm) solution footprint for handheld biasing applications.

The LT3582EUD, LT3582EUD-5 and LT3582EUD-12 are all available from stock in a 3 x 3mm QFN package.

Linear Technology now part of Analog Devices

Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges.

Contact Supplier Visit our website 01628 477066

About Analog Devices
Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure, power, connect and interpret. Visit http://www.analog.com

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