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NCP81246: Three-Rail Multi Phase Buck Controller for IMVP8

Datasheet: Three-Rail Controller with Intel Proprietary Interface for IMVP8 CPU Applications
Rev. 6 (180kB)
Product Overview
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The NCP81246 is a 3 Rail Multi Phase Buck solution is optimized for Intel IMVP8 compatible CPUs. It contains a two-phase, and two single-phase rails supporting Core, GT and SA in the following configurations 2ph-1ph-1ph, 1ph-2ph-1ph and 1ph-1ph-1ph. The part is designed for Notebook and Ultrabook applications. The two-phase controller combines true differential voltage sensing, differential inductor DCR current sensing, input voltage feed-forward, and adaptive voltage positioning to provide accurately regulated power. The two single-phase controllers can be used for Core, GT or SA rails. Both make use of ON Semiconductor’s patented high performance RPM operation. RPM control maximizes transient response while allowing for smooth transitions between discontinuous frequency scaling operation and continuous mode full power operation. The single-phase rails have an ultra low offset current monitor amplifier with programmable offset compensation for ultra high accuracy current monitoring. The NCP81246 offers three internal MOSFET Drivers with a single external PWM signal
Features   Benefits
     
  • 3 Internal Drivers
 
  • Allow high integration which reduces total solution PCB footprint
  • High performance RPM control system
 
  • New 1 phase architecture reduces compensation components PWM output provides routing flexibility
  • Dual Edge Modulation for multiphase rails
 
  • Fastest Initial Response to Transient Loading
  • Dynamic VID Feed-Forward
   
  • Adaptive Voltage Positioning (AVP)
   
  • Switching Frequency Range of 300 kHz – 750 kHz
   
  • Phase to Phase dynamic current balance
   
Applications
  • Embedded Systems
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP81246MNTXG Active
Pb-free
Halide free
NCP81246, Three rail controller with SVID Interface for IMVP8 CPUs QFN-52 485BE 1 260 Tape and Reel 2500 $1.088
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 7,500

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Phases
Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
Package Type
NCP81246MNTXG  
 $1.088 
Pb
H
 Active   
Step-Down
1/2
Voltage Mode
4.75
5.25
300 - 750
QFN-52
Case Outlines
485BE   
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