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NCP81610 Datasheet

8/7/6/5/4/3/2/1 Multi-Phase Buck Controller

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NCP81610
8/7/6/5/4/3/2/1 Multi-Phase
Buck Controller with
PWM_VID and I2C Interface
Description
The NCP81610 is a multiphase synchronous controller optimized
for new generation computing and graphics processors. The device is
capable of driving up to 8 phases and incorporates differential voltage
and phase current sensing, adaptive voltage positioning and
PWM_VID interface to provide and accurately regulated power for
computer or graphic controllers. The integrated power saving
interface (PSI) allows for the processors to set the controller in one of
three modes, i.e. all phases on, dynamic phases shedding or fixed low
phase count mode, to obtain high efficiency in lightload conditions.
The dual edge PWM multiphase architecture ensures fast transient
response and good dynamic current balance.
Features
Compliant with NVIDIA OVR4i+ Specifications
Supports up to 8 Phases
2.8 V to 20 V Supply Voltage Range:
250 kHz to 1.2 MHz Switching Frequency (8 Phase)
Power Good Output
Under Voltage Protection (UVP)
Over Voltage Protection (OVP)
Per Phase Over Current Limiting (OCL)
System Over Current Protection (OCP)
Startup into PreCharged Loads while Avoiding False OVP
Configurable Load Line
High Performance Operational Error Amplifier
True Differential Current Balancing Sense Amplifiers for Each Phase
PhasetoPhase Dynamic Current Balancing
Current Mode Dual Edge Modulation for Fast Initial Response to
Transient Loading
Power Saving Interface (PSI)
Automatic Phase Shedding with User Settable Thresholds
PWM_VID and I2C Control Interface
Compact 40 Pin QFN Package (5 x 5 mm Body, 0.4 mm Pitch)
These Devices are PbFree and are RoHS Compliant
Typical Applications
GPU and CPU Power
Graphic Cards
Desktop and Notebook Applications
Docking Stations
Power Banks
www.onsemi.com
1 40
QFN40 5x5, 0.4P
CASE 485CR
MARKING DIAGRAM
1
NCP81610
\A/(WLYYWW)
NCP81610 = Device Code
A = Assembly Site
WL = Wafer Lot Number
YY = Year of Production, Last Two Numbers
WW = Work Week Number
PIN CONNECTIONS
ORDERING INFORMATION
Device
NCP81610MNTXG
Package
QFN40
(PbFree)
Shipping
5000 / Tape
& Reel
†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.
© Semiconductor Components Industries, LLC, 2016
April, 2019 Rev. 2
1
Publication Order Number:
NCP81610/D


  ON Semiconductor Electronic Components Datasheet  

NCP81610 Datasheet

8/7/6/5/4/3/2/1 Multi-Phase Buck Controller

No Preview Available !

NCP81610
.
Figure 1. Typical Controller Application Circuit
www.onsemi.com
2


Part Number NCP81610
Description 8/7/6/5/4/3/2/1 Multi-Phase Buck Controller
Maker ON Semiconductor
Total Page 30 Pages
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