Analog Devices Inc.

The LTC3454 is a synchronous buck-boost DC/DC converter optimized for driving a single high power LED at currents up to 1A from a single cell Li-Ion battery input. The regulator operates in either synchronous buck, synchronous boost, or buck-boost mode depending on input voltage and LED forward voltage. PLED/PIN efficiency greater than 90% can be achieved over the entire usable range of a Li-Ion battery (2.7V to 4.2V).LED current is programmable to one of four levels, including shutdown, with dual external resistors and dual enable inputs. In shutdown no supply current is drawn. A high constant operating frequency of 1MHz allows the use of small external components.The LTC3454 is offered in a low profile (0.75mm) thermally enhanced 10-lead (3mm ? 3mm) DFN package.Applications Cell Phone Camera Flash Cell Phone Torch Lighting Digital Cameras PDAs Misc Li-Ion LED Drivers

* $88.11 - * $95.53
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DigiKey DC875B-ND 1 1 $89.17 $89.17 $89.17 $89.17 $89.17 $89.17 Buy
Analog Devices Inc DC875B $88.28 $88.28 $88.28 $88.28 $88.28 $88.28 Buy
Arrow North American Components DC875B 0 1 $82.65 $82.65 $82.65 $82.65 $82.65 $82.65 Buy
element14 APAC DC875B 5 1 * $95.53 * $95.53 * $95.53 * $95.53 * $95.53 * $95.53 Buy
Farnell DC875B 5 1 * $88.11 * $88.11 * $88.11 * $88.11 * $88.11 * $88.11 Buy
Newark DC875B 5 1 $89.16 $89.16 $89.16 $89.16 $89.16 $89.16 Buy
Verical Marketplace DC875B 10 1 $87.35 $87.35 $87.35 $87.35 $87.35 $87.35 Buy