DESCRIPTION
The SC1630 is a DC-DC converter designed to drive an external power switch for more flexibility, especially in higher voltage and larger power applications. Typically six components are required to set up a step-up configuration easily achieving an efficiency beyond 80%. A few more components are required to set up a step down configuration delivering 4A load current with 83% typical efficiency, 86% at 2A load, and 300µA quiescent current.

FEATURES
• Default +5V output voltage
• Adjustable output voltage with two resistors
• Power-saving shutdown mode (7µA typical)
• 120kHz switching rate
• On-chip low battery detector

APPLICATIONS
• Palmtop and notebook computers
• Battery charger supply
• Cellular telephones
• LCD contrast supply
• Flash memory programmer
• Battery backup supplies
• Portable instruments