DESCRIPTION
The SC1409 is a versatile, voltage-mode switching regulator designed for use in battery operated power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1409 with a minimum of external components. Internal MOSFETs and control circuitry minimize board space and design time. The small device footprint allows for compact circuit design.

FEATURES
 • Internal MOSFETs
 • Excellent efficiency >88%
 • 1% Voltage accuracy
 • Built-in over current protection
 • 1A Output current
 • 5µA Standby current
 • Industrial temperature range
 • 300kHz/500kHz selectable frequency

APPLICATIONS
 • Handheld equipment
 • PDA power supplies
 • Notebook I/O power supplies
 • Peripheral card supplies
 • High density DC/DC conversion