Product Overview
NCP81111: 3 Phase VR12.5-6 High Speed Digital Controller with SVID and I2C
Interfaces
For complete documentation, see the data sheet.
The NCP81111 is a high performance digital single output three phase VR12.5-6 compatible buck solution optimized to operate at
frequencies up to 5 MHz for Intel CPU applications. The NCP81111 and can also work as a general purpose I2C controlled
multiphase voltage regulator. The NCP81111 is designed to support the
NCP81163 digital phase doubler IC which expands the capability of the part to 6 phases for high current handling. The controller
includes true differential voltage sensing, differential current sensing, digital input voltage feed-forward, DAC feed forward, and
adaptive voltage positioning.
Features
• Meets Intel®’s VR12.5 Specifications
• On Board EEPROM for User Configuration
• High Performance Digital Architecture
• Dynamic Reference Injection
• Fully Differential Voltage Current Sense Amplifiers
• “Lossless” DCR Current Sensing for Current Balancing
• Thermally Compensated Inductor Current Sensing for Droop
• User Adjustable Internal Compensation
Applications End Products
• Multi-phase voltage regulator for Intel processors • Desktop PC
• General Purpose I2C Controlled Multiphase Regulators • Notebook PC
• Servers
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
NCP81111MNDFTXG
Pb-free
Halide free
Active Step-Down 1/2/3 Voltage
Mode
4.75 5.25 1000 - 5000 QFN-32
NCP81111MNI0TXG
Pb-free
Halide free
Active Step-Down 1/2/3 Voltage
Mode
4.75 5.25 1000 - 5000 QFN-32
NCP81111MNI2TXG
Pb-free
Halide free
Active Step-Down 1/2/3 Voltage
Mode
4.75 5.25 1000 - 5000 QFN-32
NCP81111MNI3TXG
Pb-free
Halide free
Active Step-Down 1/2/3 Voltage
Mode
4.75 5.25 1000 - 5000 QFN-32
NCP81111MNTXG
Pb-free
Halide free
Active Step-Down 1/2/3 Voltage
Mode
4.75 5.25 1000 - 5000 QFN-32
NCP81111MNVQTXG
Pb-free
Halide free
Active Step-Down 1/2/3 Voltage
Mode
4.75 5.25 1000 - 5000 QFN-32
For more information please contact your local sales support at www.onsemi.com.
Created on: 8/19/2018
