DESCRIPTION
The LT®3483 is a micropower inverting DC/DC converter with integrated Schottky and one resistor feedback. The small package size, high level of integration and use of tiny surface mount components yield a solution size as small as 40mm2. The device features a quiescent current of only 40μA at no load, which further reduces to 0.1μA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. A precisely trimmed 10μA feedback current enables one resistor feedback and virtually eliminates feedback loading of the output.

FEATURES
■ Internal 40V Schottky Diode
■ One Resistor Feedback (Other Resistor Inside)
■ Internal 40V, 200mA Power Switch
■ Generates Regulated Negative Outputs to –38V
■ Low Quiescent Current:
   40μA in Active Mode
   <1μA in Shutdown Mode
■ Low VCESAT Switch: 200mV at 150mA
■ Wide Input Range: 2.5V to 16V
■ Uses Small Surface Mount Components
■ Output Short-Circuit Protected
■ Available in a 6-Lead SOT-23 and Low Profile 8-Lead
   DFN (2mm × 2mm × 0.75mm) Packages

APPLICATIONS
■ LCD Bias
■ Handheld Computers
■ Battery Backup
■ Digital Cameras
■ OLED Bias