www.fairchildsemi.com
FAN5018B
6-Bit VID Controller 2-4 Phase VR10.X Controller
Features
• • • • • • • • • • Improved N...
www.fairchildsemi.com
FAN5018B
6-Bit VID Controller 2-4 Phase VR10.X Controller
Features
Improved Noise Immunity Improved Load Line Accuracy TTL Compatible VID Inputs Fully Pin and Function compatible with existing FAN5018 and ADP3180 Controllers Precision Multi-Phase DC-DC Core
Voltage Regulation – ±14mV Output
Voltage Accuracy Over Temperature Differential Remote
Voltage Sensing Selectable 2-, 3-, or 4-Phase Operation Selectable VRM9 or VRM10 Operation Up to 1MHz per Phase Operation (4MHz ripple Frequency) Lossless Inductor Current Sensing for Loadline Compensation – External Temperature Compensation Accurate Loadline Programming (Meets Intel® VRM/VRD10.x CPU Specifications) Accurate Channel-Current Balancing for Thermal Optimization and Layout Compensation Convenient 12V Supply Biasing 6-bit
Voltage Identification (VID) Input – .8375V to 1.600V in 12.5mV Steps – Dynamic VID Capability with Fault-Blanking for glitch-less Output
voltage Changes Adjustable Over Current Protection with Programmable Latch-Off Delay. Latch-Off Function may be Disabled Over-
Voltage Protection – Internal OVP Crowbar Protection Package: 28L-TSSOP
General Description
The FAN5018B is a multi-phase DC-DC controller for implementing high-current, low-
voltage, CPU core power regulation circuits. It is part of a chipset that includes external
MOSFET drivers and power
MOSFETS. The FAN5018B drives up to four synchronous-rectified buck channels in parallel. The multi-phase buck convert...