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ISL95831CIRTZ-T

Description
pmic solutions 3+1 voltage reg imvp/vr12 cpus IC
Categorysemiconductor    Other integrated circuit (IC)   
File Size105KB,1 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
Environmental Compliance  
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ISL95831CIRTZ-T Overview

pmic solutions 3+1 voltage reg imvp/vr12 cpus IC

ISL95831CIRTZ-T Parametric

Parameter NameAttribute value
ManufactureIntersil
Product CategoryPMIC Solutions
RoHSYes
Supply Voltage4.5 V to 25 V
Mounting StyleSMD/SMT
Package / CaseTQFN-48
PackagingReel
Description/FunctiVoltage regulator for IMVP-7VR12 CPUs
Input Voltage4.5 V to 25 V
Output Voltage0.25 V to 1.52 V
Factory Pack Quantity4000
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
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© Intersil Americas LLC
http://www.intersil.com/content/intersil/en/products/power-management/computing-power-vrm-imvp/multiphase... 4/24/2013

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