DESCRIPTION

The APU3046 IC combines a Dual synchronous Buck controller and a linear regulator controller, providing a cost-effective, high performance and flexible solution for multi-output applications. The Dual synchronous controller can be configured as 2-independent or 2-phase controller. In 2-phase configuration, the APU3046 provides a programmable current sharing which is ideal when the output power exceeds any single input power budget.

FEATURES

■ Dual Synchronous Controller in 24-Pin Package

with 1808 out-of-phase operation

■ LDO Controller with Independent Bias Supply

■ Can be configured as 2-Independent or 2-Phase

PWM Controller

■ Programmable Current Sharing in 2-Phase Configuration

■ Flexible, Same or Separate Supply Operation

■ Operation from 4V to 25V Input

■ Programmable Switching Frequency up to 400KHz

■ Soft-Start controls all outputs

■ Precision Reference Voltage Available

■ 500mA Peak Output Drive Capability

■ Short Circuit Protection for all outputs

■ Power Good Output

■ Synchronizable with External Clock

■ RoHS Compliant

APPLICATIONS

■ Dual-Phase Power Supply

■ DDR Memory Source Sink Vtt Application

■ Graphic Card

■ Hard Disk Drive

■ Power supplies requiring multiple outputs