DESCRIPTION

The APU3146 IC combines a Dual synchronous Buck controller, providing a cost-effective, high performance and flexible solution. The APU3146 can configured as 2-independent or as 2-phase controller. The 2-phase configuration is ideal for high current applications.

FEATURES

■ Dual Synchronous Controller with 180° out-of-phase

■ Configurable to 2-Independent Outputs or 2-Phase Single Output

■ Current Sharing Using Inductors DCR

■ Current Limit using MOSFETs RDS(ON)

■ Hiccup/Latched Current Limit

■ Latched Over-Voltage Protection

■ Vcc from 4.5V to 16V Input

■ Programmable Switching Frequency up to 500KHz

■ Two Independent Soft-Starts/ Shutdowns

■ 0.8V Precision Reference Voltage Available

■ Power Good Output

■ External Frequency Synchronization

■ Halogen Free Product

APPLICATIONS

■ Embedded Computer Systems

■ Telecom Systems

■ Point of Load Power Architectures

■ 2-Phase Power Supply

■ Graphic Card

■ DDR Memory Applications