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© Semiconductor Components Industries, LLC, 2014
May, 2014 − Rev. 0
1 Publication Order Number:
NCP81109C/D
NCP81109C
Single-Phase Voltage
Regulator with SVID
Interface for Computing
Applications
High Switching Frequency, High
Efficiency, Integrated Power MOSFETs
The NCP81109C, a single−phase synchronous buck regulator,
integrates power MOSFETs to provide a high−efficiency and
compact−footprint power management solution for new generation
computing 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 wide
operation condition. The NCP81109C is in a QFN48 6 x 6 mm
package.
Features
• Meets Intel® Server Specifications
• 5 V to 20 V Input Voltage Range
• 0.9 V/1.35 V Fixed Boot Voltage
• Adjustable Output Voltage with SVID Interface
• Integrated Gate Driver and Power MOSFETs
• 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
• QFN48, 6 x 6 mm, 0.4 mm Pitch Package
• This is a Pb−Free Device
Typical Applications
• Server Applications
Device Package Shipping
†
ORDERING INFORMATION
NCP81109CMNTXG QFN48
(Pb−Free)
2500 / Tape &
Reel
QFN48
CASE 485CJ
MARKING
DIAGRAM
http://onsemi.com
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
481
NCP81109C
AWLYYWWG
1
NCP81109C= Specific Device Code
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
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