LT1615IS5#PBF Description
The LT?1615/LT1615-1 are micropower step-up DC/DC converters in a 5-lead low profile (1mm) ThinSOT 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 input voltage range of 1V to 15V. Otherwise, the two devices are functionally equivalent. Both devices feature a quiescent current of only 20μA at no load, which further reduces to 0.5μA in shutdown. A current limited, fixed off-time 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.
LT1615IS5#PBF Features
Low Quiescent Current:
20μA in Active Mode
<1μA in Shutdown Mode
Operates with VIN as Low as 1V
Low VCESAT Switch: 250mV at 300mA
Uses Small Surface Mount Components
High Output Voltage: Up to 34V
Low Profile (1mm) ThinSOTTM Package
LT1615IS5#PBF Applications
LCD Bias
Handheld Computers
Battery Backup
Digital Cameras
