Features: ` Low Quiescent Current: 20A in Active Mode <1A in Shutdown Mode` Operates with VIN as Low as 1V` Low VCESAT Switch: 250mV at 300mA` Tiny 5-Lead SOT-23 Package` Uses Small Surface Mount Components` High Output Voltage: Up to 34VApplication·LCD Bias·Handheld Computers·Battery Backup·Di...
LT1615-1: Features: ` Low Quiescent Current: 20A in Active Mode <1A in Shutdown Mode` Operates with VIN as Low as 1V` Low VCESAT Switch: 250mV at 300mA` Tiny 5-Lead SOT-23 Package` Uses Small Surface Mount...
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The LT®1615/LT1615-1 are micropower step-up DC/DC converters in a 5-lead SOT-23 package. The LT1615 is designed for higher power systems with a 350mA current limit and an input voltage range of 1.2V to 15V, whereas the LT1615-1 is intended for lower power and single-cell applications with a 100mA current limit and an extended in put voltage range of 1V to 15V. Otherwise, the two devices are functionally equivalent. Both devices feature a quiescent current of only 20mA at no load, which further reduces to 0.5mA in shutdown. A current limited, fixed offtime control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs up to 34V to be easily generated in a simple boost topology without the use of costly transformers. The LT1615's low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications.