Intersil ISL95835IRZ 31 and 11 voltage regulator for imvp-7/vr12â ¢ cpus Datasheet

ISL95835 3+1 and 1+1 Voltage Regulator for IMVP-7/VR12™ CPUs
ISL95835
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3+1 and 1+1 Voltage Regulator for IMVP-7/VR12™ CPUs
Features Description
Technical Documentation
Pricing / Samples
iSim Design Simulation
Tools And Support
Related Devices
Datasheet
ISL95835
The ISL95835, ISL95837 datasheet is restricted to a very limited number of customers. To request a
datasheet please email Jia Wei at [email protected]
VIN (min) (V)
VIN (max) (V)
VOUT (min) (V)
VOUT (max) (V)
IOUT (max) (A)
VBIAS (V)
Applications
Max # of outputs
Max # of phases
Droop
Integrated MOSFET Driver
4.5
5.5
0
1.52
90
5
VR12/IMVP7
2
3
Y
Y
Product Information
Key Features
Serial Data Bus
Dual Outputs:
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 VBOOT Voltage at Start-up
Resistor Programmable IMAX, TMAX for Both Outputs
Adaptive Body Diode Conduction Time Reduction
Description
Compliant with IMVP-7/VR12™, the ISL95835 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 it’s ability to automatically change switching frequency.
The ISL95835 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 VBOOT voltage, programmable IMAX, TMAX, adjustable switching frequency, OC protection and separate
Power-Good.
http://www.intersil.com/products/print.asp?id=ISL95835
11/9/2011
ISL95835 3+1 and 1+1 Voltage Regulator for IMVP-7/VR12™ CPUs
Page 2 of 2
The ISL95837 can be considered as ISL95835 dedicated for 1+1 application. VR1 and VR2 are both 1-phase VR.
Pricing / Packaging / Samples / Ordering
iBuy direct from Intersil
Check distributor inventory
iBuy direct - out of stock
Request samples
Available in RoHS/Pb-Free
Design-In
Status
Temp.
Package
MSL
ISL95835HRZ
Active
Hi-Temp Comm
40 Ld QFN
3
ISL95835HRZ-T
Active
Hi-Temp Comm
40 Ld QFN T+R
3
ISL95835IRZ
Active
Ind
40 Ld QFN
3
ISL95835IRZ-T
Active
Ind
40 Ld QFN T+R
3
Part No.
Price
US $
The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices
in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing
Technical Documentation
Datasheet(s):
The ISL95835, ISL95837 datasheet is restricted to a very limited number of customers. To request a datasheet please
email Jia Wei at [email protected]
Tools And Support
iSim Design Simulation
No Models Available
Applications
IMVP-7/VR12 Compliant Computers
Related Devices
ISL6353
Parametric Table
Multiphase PWM Regulator for VR12 DDR Memory Systems
ISL6363
Multiphase PWM Regulator for VR12™ Desktop CPUs
ISL6364
Dual 4-Phase + 1-Phase PWM Controller for VR12/IMVP7 Applications
ISL6364C
Dual 4-Phase + 1-Phase PWM Controller for VR12 Desktop Applications
ISL6366
Dual 6-Phase + 1-Phase PWM Controller for VR12/IMVP7 Applications
ISL95831
3+1 Voltage Regulator for IMVP-7/VR12 CPUs
ISL95837
3+1 and 1+1 Voltage Regulator for IMVP-7/VR12™ CPUs
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http://www.intersil.com/products/print.asp?id=ISL95835
11/9/2011
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