ISL95866CHRZ Switching Controllers 4+3 Multi-phase Controller for Intel IMVP8
ISL95866CHRZ Switching Controllers 4+3 Multi-phase Controller for Intel IMVP8
| Renesas Electronics | |
| Product Category: | Switching Controllers |
| RoHS: | Details |
| - | |
| 2 Output | |
| - | |
| - | |
| 9 V to 20 V | |
| 0 V to 1.52 V | |
| 120 A | |
| - | |
| - | |
| SMD/SMT | |
| QFN-52 | |
| Tube | |
| Brand: | Renesas / Intersil |
| Height: | 0.9 mm |
| Length: | 6 mm |
| Moisture Sensitive: | Yes |
| Operating Supply Voltage: | 4.75 V to 5.25 V |
| Product Type: | Switching Controllers |
| Series: | ISL95866 |
| Subcategory: | PMIC - Power Management ICs |
| Width: | 6 mm |
| Unit Weight: | 0.003668 oz |
The ISL95866C is compliant with Intel IMVP8™, andprovides a complete power solution for desktop micro
processors supporting core (IA), graphics (GT), orunsliced graphics (GTUS or GTX). The controlle rprovides
control and protection for two VoltageRegulators (VR). The first VR can be configured for 4-,3-, 2-, or 1-phase
operation. The second VR isconfigurable for 3-, 2-, or 1-phase operation. The VRsfeature a programmable
SVID address to allowmaximum flexibility in supporting desktop processorSKUs. Both controller outputs
share a common serialcontrol bus to communicate with the CPU and achievelower cost and smaller board
area compared with a two-chipapproach.
Based on Intersil’s Robust Ripple Regulator R3™technology, the R3 modulator has many advantages
compared to traditional modulators. These include fastertransient settling time, variable switching frequency
inresponse to load transients, and improved light-loadefficiency due to Diode Emulation Mode
withload-dependent low switching frequency.
The ISL95866C has several other key features. Thecontroller features three integrated +12V gate driverswith
two on the VR A output. The controller supportseither DCR current sensing with a single NTC thermistorfor
DCR temperature compensation or more precisionthrough resistor current sensing if desired. Both output
sfeature remote voltage sense, programmable IMAX,adjustable switching frequency, OC protection, and
asingle VR_READY power-good indicator. TheISL95866C features an SMBus interface, which support
senabling or disabling droop, output voltage offsetadjustment, and disabling of OVP and OCP protections.
Features
• Supports Intel CEC requirements
• Supports Intel serial data bus interface
• SMBus/PMBus/I2C interface with SVID conflict free
• Droop, OVP, and OCP enable/disable
• Voltage offset adjustment
• Green hybrid digital R3 modulator
• Excellent transient response
• Phase shedding with power state selection
• Diode emulation in single-phase for highlight-load efficiency
• Dual output controller
• Voltage regulator A: 4-, 3-, 2-, or 1-phase designswith two +12V integrated gate drivers
• Voltage regulator B: 3-, 2-, or 1-phase designswith one +12V 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
• Resistor programmable address selection, IMAX, andswitching frequency for both outputs
Applications
• IMVP8 compliant desktop computers
