Product Overview
NCP81140: Multiple-Phase Controller with SVID Interface
For complete documentation, see the data sheet.
The NCP81140 Multi-Phase buck solution is optimized for Intel VR12.5 compatible CPUs with user configurations of 4/3/2/1 phases.
The controller combines true differential voltage sensing, differential inductor DCR current sensing, input voltage feed-forward, and
adaptive voltage positioning to provide accurately regulated power for both Desktop and Notebook applications. The control system
is based on Dual-Edge pulse-width modulation (PWM) combined with DCR current sensing providing the fastest initial response to
dynamic load events at reduced system cost. It has the capability to shed to single phase during light load operation and can auto
frequency scale in light load conditions while maintaining excellent transient performance.
Applications
• Industrial CPU based applications
End Products
• Infotainment, Mobile, Automation, Medical and Security
Part Electrical Specifications
Product
NCP81140MNTXG
Compliance
Pb-free
Halide free
Status
Active
Topology
Step-Down
Phases
Control
Mode
Voltage
Mode
V
CC
Min (V)
4.75
V
CC
Max (V)
5.25
f
SW
Typ
(kHz)
600
t
res
Typ (ns)
Package
Type
QFN-32
For more information please contact your local sales support at www.onsemi.com.
Created on: 10/28/2018
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