Programmable output from 1.10V to 1.85V in 25mV steps using an integrated 5-bit DAC
Two interleaved synchronous phases for maximum performance
100nsec transient response time
Built-in current sharing between phases
Remote sense
Programmable Active Droop? (Voltage Positioning)
Programmable switching frequency from 100KHz to 300KHz per phase
Adaptive delay gate switching
Integrated high-current gate drivers
Integrated Power Good, OV, UV, Enable/Soft Start functions
Drives N-channel MOSFETs
Operation optimized for 12V operation
Overcurrent protection using MOSFET sensing
24 pin TSSOP package
FAN5090 Description
The FAN5090 is a synchronous two-phase DC-DC controller IC which provides a highly accurate, programmable output voltage for VRM 9.x processors. Two interleaved synchronous buck regulator phases with built-in current sharing operate 180° out of phase to provide the fast transient response needed to satisfy high current applications while minimizing external components.