DESCRIPTION
The SC1631 is a high efficiency step up DC-DC converter. Only four external components are required to deliver a fixed voltage of 3V, 3.3V, or 5V. Efficiency beyond 87% can be easily achieved at 100mA load with 2.2V to 3V input voltages.

FEATURES
• High efficiency 90%
• Power-saving shutdown mode (7µA typical)
• Internal 2A switch
• 120kHz switching rate
• Adjustable switch current limit
• On-chip low battery detector

APPLICATIONS
• Palmtop and notebook computers
• Pocket organizers
• Cameras
• Pagers
• Battery backup supplies
• Portable instruments