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NCP81252: Single−Phase Synchronous Buck Regulator with Integrated Power MOSFETs for VR12 Embedded CPUs

Datasheet: Single-Phase Voltage Regulator w SVID Interface for Computing Apps
Rev. 1 (295kB)
Product Overview
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The NCP81252 is a single−phase synchronous buck regulator with integrated power MOSFETs to provide a high−efficiency and compact−footprint power management solution for VR12 embedded CPUs. The device is able to deliver up to 14 A TDC output current on an adjustable output with SVID interface. Operating in high switching frequency up to 1.2 MHz allows employing small size inductors and capacitors while maintaining high efficiency due to integrated solution with high performance power MOSFETs. Current−mode RPM control with feedforward from both input power supply and output voltage ensures stable operation over a wide operation condition.
Features   Benefits
     
  • 5V to 20V Input Voltage Range
 
  • Optimized for Ultrabook and notebook applications
  • Adjustable Output Voltage with SVID Interface
 
  • Programmable DVID Feed-Forward to Support Fast DVID
  • Integrated Gate Driver and Power MOSFETs
 
  • Small form-factor design
  • 500kHz ~ 1.2MHz Switching Frequency
 
  • Reduced output filter size and cost
  • Feedforward Operation for Input Supply Voltage and Output Voltage
 
  • Fast line transient response and DVID transition
  • Overcurrent, Over/Undervoltage, and Thermal protection
 
  • Protected against faults
  • 5 V to 20 V Input Voltage Range
   
  • 0.9 V/1.35 V Fixed Boot Voltage
   
  • Adjustable Output Voltage with SVID Interface
   
  • Up to 14 A TDC Output Current
   
  • 500 kHz ~ 1.2 MHz Switching Frequency
   
  • Current−Mode RPM Control
   
  • Programmable SVID Address and ICCMax
   
  • Programmable DVID Feed−Forward to Support Fast DVID
   
  • Feedforward Operation for Input Supply Voltage and Output Voltage
   
  • Output Over−Voltage and Under−Voltage Protections
   
  • External Current Limitation Programming with Inductor Current Sense
   
Applications   End Products
  • Integrated POL
 
  • Ultrabook
  • Notebook
  • Server
  • Microservers , Storage devices , Embedded CPU's
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.
NCP81252MNTXG Active
Pb-free
Halide free
NCP81252, Single-Phase Voltage Regulator w SVID Interface for Computing Apps QFN-48 485CJ 3 260 Tape and Reel 2500 $1.2666
Market Leadtime (weeks) : 8 to 12

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Phases
Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
Package Type
NCP81252MNTXG  
 $1.2666 
Pb
H
 Active   
Step-Down
1
Voltage Mode
4.75
5.75
500 - 1200
QFN-48
Case Outlines
485CJ   
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