Product Overview
NCP81149: Single-Phase Voltage Regulator with SVID Interface for
Computing Applications
For complete documentation, see the data sheet
The NCP81149, 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 14A TDC output
current on an adjustable output with SVID interface. Operating in high switching frequency up to 1.2MHz 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 NCP81149 is in a QFN48 6x6mm package.
Features Benefits
• 4.5V to 25V Input Voltage Range • Optimized for Ultrabook and notebook applications
• Support 11.5W and 15W ULT Platforms • Meets Intel VR12.6 and VR12.6+ Specifications
• 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
Applications End Products
• Industrial Applications • Ultrabook
• Ultrabook Applications • Notebook
• Notebook Applications • Server
• Integrated POL
Part Electrical Specifications
Product Compliance Status Topology Phases Control
Mode
V
CC
Min (V) V
CC
Max (V) f
SW
Typ
(kHz)
t
res
Typ (ns) Package
Type
NCP81149MNTXG
Pb-free
Halide free
Active Step-Down 1 Current
Mode
4.5 25 500 - 1200 QFN-48
For more information please contact your local sales support at www.onsemi.com
Created on: 4/29/2017
