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LT3494

Part Number	LT3494
Manufacturer	Linear Technology
Description	Micropower Low Noise Boost Converters
Published	Jan 16, 2010
Detailed Description	LT3494/LT3494A Micropower Low Noise Boost Converters with Output Disconnect FEATURES ■ DESCRIPTION The LT®3494/LT3494A ...
Datasheet	LT3494 PDF File

Overview

LT3494/LT3494A Micropower Low Noise Boost Converters with Output Disconnect FEATURES ■ DESCRIPTION The LT®3494/LT3494A are low noise boost converters with integrated power switch, Schottky diode and output disconnect circuitry.
The parts use a novel* control technique resulting in low output voltage ripple as well as high efﬁciency over a wide load current range.
This technique guarantees that the switching frequency stays above the audio band for the entire load range.
The parts feature a high performance NPN power switch with a 350mA and 180mA current limit for the LT3494A and LT3494 respectively.
The quiescent current is a low 65μA, which is further reduced to less than 1μA in shutdown.
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