Product category: Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LT3466-1
Edited by the Electronicstalk Editorial Team on 12 January 2006
White LED driver and boost convertor
come together
The LT3466-1 dual step-up DC/DC convertor combines a white LED driver and a boost convertor in a low profile 3 x 3mm DFN package.
Linear Technology has released the LT3466-1 dual step-up DC/DC convertor: a white LED driver and a boost convertor in a low profile 3 x 3mm DFN package The LED driver channel can drive up to 10 white LEDs from a single cell Li-ion input at up to 83% efficiency
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The boost convertor can generate TFT-LCD bias voltages or drive an OLED display.
Each channel has independent dimming and shutdown control.
Schottky diodes are integrated, eliminating both the added cost and board space required by external diodes.
Its 3 x 3mm DFN package and tiny externals provide a very compact footprint for space-constrained handheld applications.
The LT3466-1 switching frequency can be set between 200kHz and 2MHz via a single resistor, enabling the designer to minimise solution footprint and maximise efficiency.
Constant switching frequency minimises noise, greatly reducing potential interference with onboard RF or noise sensitive circuitry.
Its 2.7 to 24V input voltage range enables it to operate in applications from Li-ion powered handheld devices to automotive backlighting.
Both the LED driver and the boost convertor have overvoltage protection and internal soft-start.
The LT3466-1 is available from stock in a 3 x 3mm DFN-10 package.
Pricing starts at $1.95 each for 1000-piece quantities. Request a free brochure from Linear Technology Corp ...
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