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NCP61510091MNR2G

Description
Dual Output 4 Phase 1/0 Phase Controller
File Size572KB,34 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
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NCP61510091MNR2G Overview

Dual Output 4 Phase 1/0 Phase Controller

NCP6151/NCP6151A
Dual Output 4 Phase +1/0 Phase
Controller with single SVID Interface
for Desktop and Notebook CPU
Applications
The NCP6151/NCP6151A dual output four plus one
phase buck solution is optimized for Intel VR12
compatible CPUs. 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 and reduced system cost. It also
sheds to single phase during light load operation and
can auto frequency scale in light load while maintaining
excellent transient performance.
Dual high performance operational error amplifiers are
provided to simplify compensation of the system.
Patented Dynamic Reference Injection further simplifies
loop compensation by eliminating the need to
compromise between closed-loop transient response
and Dynamic VID performance. Patented Total Current
Summing provides highly accurate current monitoring for
droop and digital current monitoring.
NCP6151A support coupled inductor operation. It
operates with 2 phases versus NCP6151 operating with
single phase during PS1 mode.
Features
Meets Intel VR12/IMVP7 Specifications
Current Mode Dual Edge Modulation for Fastest
Initial Response to Transient Loading
Dual High Performance Operational Error Amplifier
One Digital Soft Start Ramp for Both Rails
Dynamic Reference Injection
®
(Patent
#US07057381)
Accurate Total Summing Current Amplifier(Patent
#US006683441)
DAC with Droop Feed-forward Injection(Patent
Pending)
Dual High Impedance Differential Voltage and Total
Current Sense Amplifiers
Phase-to-Phase Dynamic Current Balancing
“Lossless” DCR Current Sensing for Current
Balancing
Summed Thermally Compensated Inductor Current
Sensing for Droop
True Differential Current Balancing Sense Amplifiers
for Each Phase
Adaptive Voltage Positioning (AVP)
DIF FOUT
VSN
http://onsemi.com
DROOP
CSCOMP
CSSUM
FB
TRBST
CSREF
IOU T
42
43
COMP
52
51
50
49
48
47
46
45
44
VSP
TSENSE
VR_HOT#
SD IO
SC LK
ALERT#
VR_RDY
VR_RDYA
ENABLE
ROSC
VCC
VR MP
TSEN SEA
CSN4
CSP4
40
41
39
ILIM
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
16
17
18
19
20
21
22
23
24
25
26
38
CSN2
CSP2
CSN3
CSP3
CSN1
CSP1
DRVON
PWM1/ADDR
PWM3 /IMAX
PWM2/VBOOT
PWM4
PWMA/IMAXA
VBOOTA
PIN 1
INDIC ATOR
37
36
35
NCP6151
34
33
32
31
Top View
(not to scale)
30
29
28
27
VSNA
DIFFOU TA
F BA
TRBSTA
VSPA
COMPA
ILI MA
DROOPA
CSCOM PA
CSSUMA
IOU TA
QFN52 Dual Row Pin Package
Device
NCP6151D52MNR2G
NCP6151AD52MNR2G
NCP61510091MNR2G
Package
QFN52
Dual Row
QFN52
Dual Row
QFN52
Dual Row
Shipping
CSPA
CSNA
2500/Tape &
Reel
2500/Tape &
Reel
2500/Tape &
Reel
* Pb-free and Halide-free packages are available
Switching Frequency Range of 200KHz –
1.0MHz
Startup into Pre-Charged Loads While
Avoiding False OVP
Power Saving Phase Shedding
Vin Feed Forward Ramp Slope
Pin Programming for Internal SVID
parameters
Over Voltage Protection (OVP) & Under
Voltage Protection (UVP)
Over Current Protection (OCP)
Dual Power Good Output with Internal Delays
NCP6151A support coupled inductor operation
Applications
Desktop & Notebook Processors
Rev1, 032012 
Page 1 

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