DESCRIPTION
The SC1109 was designed for the latest high speed motherboards. It combines a synchronous voltage mode controller (switching section) with two low-dropout linear regulator controllers. The voltage mode controller provides the power supply for the system AGTL bus. The 1.8V and 2.5V linear controllers power the Chipset and
clock circuitry.
FEATURES
· 1.8V, 2.5V linear controllers
· LDOs track input voltage within 200mV until regulation
· Integrated drivers
· Power Good Signal
· Soft Start
· Lossless Current Sense
APPLICATIONS
· Pentium® III Motherboards
· Triple power supplies