FAN5019 PDF File ( Datasheet )

www.fairchildsemi.com FAN5019 6-Bit VID Controller 2-4 Phase VRM10.X Controller Features Pin and Function Backward Compatible with FAN53168 and FAN53180 Controllers Precision Multi-Phase DC-DC Core Voltage Regulation ±10mV Output Voltage Accuracy Over Temperature Differential Remote Voltage Sensing Selectable 2, 3, or 4 Phase Operation Selectable VRM9 or VRM10 Operation Up to 1MH- per Phase Operation (4MH- ripple Frequency) Lossless Inductor Current Sensing for Loadline Compensation E

www.fairchildsemi.com FAN5019B 6-Bit VID Controller 2-4 Phase VR10.X Controller General Description The FAN5019B 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 FAN5019B drives up to four synchronous-rectified buck channels in parallel. The multi-phase buck converter architecture uses interleaved switching to multiply ripple frequency by the num