© Semiconductor Components Industries, LLC, 2016
November, 2016 − Rev. 3
1 Publication Order Number:
NCP81255/D
NCP81255
Single‐Phase Voltage
Regulator with Intel
Proprietary Interface for
Computing Applications
The NCP81255 is a high-performance, low-bias current,
single-phase regulator with integrated power MOSFETs intended to
support a wide range of computing applications. The device is able to
deliver up to 14 A TDC output current on an adjustable output with
Intel proprietary interface interface. Operating in high switching
frequency up to 1.2 MHz allows employing small size inductor and
capacitors. The controller makes 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 NCP81255 has an ultra-low offset current
monitor amplifier with programmable offset compensation for
high-accuracy current monitoring.
Features
• Auto DCM Operation in High Current Power States
• High Performance RPM Control System
• IMVP8 Intel proprietary interface Support
• Ultra Low Offset IOUT Monitor
• Dynamic VID Feed-Forward
• Programmable Droop Gain
• Zero Droop Capable
• Supports IMVP8 Intel proprietary interface Addresses
• PSYS Input Monitor
• Thermal Monitor
• UltraSonic Operation
• Digitally Controlled Operating Frequency
• QFN40 5 mm × 5 mm Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• IMVP8 Rail1, Rail3, and Rail4
MARKING DIAGRAM
www.
onsemi.com
QFN40
CASE 485DY
†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.
401
NCP81255
FAWLYYWW
G
1
NCP81255 = Specific Device Code
F = Wafer Fab
A = Assembly Location
WL = Lot ID
YY = Year
WW = Work Week
G = Pb-Free Package
Device Package Shipping
†
ORDERING INFORMATION
NCP81255MNTXG QFN40
(Pb−Free)
3000 / Tape & Ree
