DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/isl95833 ISL95833 FN7837
Rev 2.00
FN7837 Dual 2+1 PWM Controller for IMVP-7/VR12 CPUs Features The ISL95833 Pulse Width Modulation (PWM) controller IC
provides a complete solution for IMVP-7/VR12в„ў compliant
microprocessor and graphic processor core power supplies. It
provides the control and protection for two Voltage Regulators
(VRs). The first VR, typically for VCORE, incorporates 1
integrated driver and can operate in 2-or 1-phase
configurations. The second VR, typically for Graphics, is a
single phase regulator incorporating an integrated driver. The
two VRs share a serial control bus to communicate with the
CPU and achieve lower cost and smaller board area compared
with the two-chip approach. Serial Data Bus Dual Outputs:
-Configurable 2-or 1-phase for the 1st Output using one
Integrated Gate Driver
-1-phase for the 2nd Output using an Integrated Gate
Driver R3 Modulator
-Excellent Transient Response
-High Light Load Efficiency Both VRs utilize Intersil's Robust Ripple Regulator R3
Technologyв„ў. The R3 modulator has numerous advantages
compared to traditional modulators, including faster transient
response, variable switching frequency during load transients, …