Home > Products > Power Management > Computing Power VRM/IMVP > Multiphase Controllers > ISL95831C
ISL95831C
KEY F EATURES
• Serial Data Bus
• Dual Outputs:
3+1 Voltage Regulator for IMVP-7/VR12™ CPUs
TYPICAL DIAGRA M
Request Full Data Sheet
EN LARGE +
• Configurable 3-, 2- or 1-phase for the 1st Output using 2 integrated Gate Drivers
• 1-phase for the 2nd Output using an Integrated Gate Driver
• 0.5% System Accuracy Over-Temperature
• Supports Multiple Current Sensing Methods
• Lossless Inductor DCR Current Sensing
• Precision Resistor Current Sensing
• Differential Remote Voltage Sensing
• Programmable V
BOOT
Voltage at Start-up
• Resistor Programmable I
MAX
, T
MAX
for Both Outputs
• Adaptive Body Diode Conduction Time Reduction
DE SCRIP TI ON
Compliant with IMVP-7/VR12™, the ISL95831C provides a complete solution for microprocessor and
graphic processor core power supply. It provides two Voltage Regulators (VRs) with three integrated
gate drivers. The first VR can be configured as 3-, 2- or 1-phase VR while the second output is 1-phase
VR, providing maximum flexibility. The two VRs share the serial control bus to communicate with the
CPU and achieve lower cost and smaller board area compared with the two-chip approach.
Based on Intersil’s Robust Ripple Regulator (R3) technology™, the PWM modulator compared to
traditional modulators, has faster transient settling time, variable switching frequency during load transients and has improved light load efficiency with its
ability to automatically change switching frequency.
The ISL95831C has several other key features. Both outputs support DCR current sensing with single NTC thermistor for DCR temperature compensation or
accurate resistor current sensing. Both outputs come with remote voltage sense, programmable V
BOOT
voltage, programmable I
MAX
, T
MAX
, adjustable switching
frequency, OC protection and separate Power-Good.
A PPLI CA TIONS
• IMVP-7/VR12 Compliant Computers
Follow Us
Legal | Privacy | Investor Relations | Feedback | Site Map
© Intersil Americas LLC
http://www.intersil.com/content/intersil/en/products/power-management/computing-power-vrm-imvp/multiphase... 4/24/2013
京公网安备 11010802033920号
EEWORLD
