ISL95833 Datasheet PDF - Intersil Corporation


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ISL95833
Intersil Corporation

Part Number ISL95833
Description Dual 2+1 PWM Controller for IMVP-7 VR12 CPUs
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ISL95833
Dual 2+1 PWM Controller for IMVP-7/VR12 CPUs
 
Features Description
Technical Documentation
Pricing / Samples
iSim Design Simulation
Tools And Support
Related Devices
 
Datasheet
ISL95833
Dual 2+1 PWM Controller for IMVP-7/VR12 CPUs
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
4.75
5.25
.25
1.52
60
5
VR12/IMVP7
2
2
Y
Y
Product Information
Key Features
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
0.5% System Accuracy Over-Temperature
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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, Switching Frequency for Both Outputs
Adaptive Body Diode Conduction Time Reduction
Description
The ISL95833 Pulse Width Modulation (PWM) controller IC provides a complete solution for IMVP-7/VR12™ 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.
Both VRs utilize Intersil's Robust Ripple Regulator R3 Technology™. The R3 modulator has numerous advantages
compared to traditional modulators, including faster transient response, variable switching frequency during load
transients, and improved light load efficiency due to its ability to automatically change switching frequency.
The ISL95833 has several other key features. Both outputs support either DCR current sensing with a single NTC
thermistor for DCR temperature compensation, or more precise resistor current sensing if desired. Both outputs come
with remote voltage sense, programmable VBOOT voltage, IMAX, and switching frequency, adjustable overcurrent
protection and separate Power-Good signals.
Pricing / Packaging / Samples / Ordering
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 Check distributor inventory
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 Available in RoHS/Pb-Free
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Part No.
Design-In
Status
Temp.
Package
Price
MSL US $
ISL95833HRTZ
Active
Hi-Temp Comm
32 Ld TQFN
3
ISL95833HRTZ-T
Active
Hi-Temp Comm
32 Ld TQFN T+R
3
ISL95833IRTZ
Active
Ind
32 Ld TQFN
3
ISL95833IRTZ-T
Active
Ind
32 Ld TQFN T+R
3
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):



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Dual 2+1 PWM Controller for IMVP-7/VR12 CPUs
Tools And Support
iSim Design Simulation
No Models Available
Applications
IMVP-7/VR12 Compliant Computers
  Related Devices
  ISL6353   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
 
  ISL95835   3+1 and 1+1 Voltage Regulator for IMVP-7/VR12™ CPUs
 
  ISL95836   Dual 3+2 PWM Controller 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=ISL95833[3/9/2012 9:51:08 AM]




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