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