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Número de pieza | NCP81119 | |
Descripción | Multiple-Phase Controller | |
Fabricantes | ON Semiconductor | |
Logotipo | ||
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No Preview Available ! NCP81119
Multiple-Phase Controller
with SVID Interface for
Desktop and Notebook CPU
Applications
The NCP81119 Multi−Phase buck solution is optimized for
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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
MARKING
DIAGRAM
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
1
QFN32
CASE 510AT
NCP
81119
ALYWG
G
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.
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
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
to compromise between closed−loop transient response and Dynamic
VID performance. Patented Total Current Summing provides highly
accurate digital current monitoring.
Features
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 26 of this data sheet.
• Meets Intel VR12.5 Specifications
• Current Mode Dual Edge Modulation for Fastest Initial Response to
Transient Loading
• High Performance Operational Error Amplifier
• Digital Soft Start Ramp
• Dynamic Reference Injection
• Accurate Total Summing Current Amplifier
• Dual High Impedance Differential Voltage and Total
• Vin Feed Forward Ramp Slope
Current Sense Amplifiers
• Phase−to−Phase Dynamic Current Balancing
• “Lossless” DCR Current Sensing for Current Balancing
• Pin Programming for Internal SVID parameters
• Over Voltage Protection (OVP) & Under Voltage
Protection (UVP)
• True Differential Current Balancing Sense Amplifiers
• Over Current Protection (OCP)
for Each Phase
• Adaptive Voltage Positioning (AVP)
• Switching Frequency Range of 280 kHz – 600 kHz
• Startup into Pre−Charged Loads While Avoiding False
OVP
• VR−RDY Output with Internal Delays
• These are Pb−Free Devices
Applications
• Desktop and Notebook Processors
• Power Saving Phase Shedding
© Semiconductor Components Industries, LLC, 2013
August, 2013 − Rev. 1
1
Publication Order Number:
NCP81119/D
1 page NCP81119
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL INFORMATION
Pin Symbol
COMP
VMAX
VCC + 0.3 V
CSCOMP
VCC + 0.3 V
VSN
GND + 300 mV
DIFFOUT
VCC + 0.3 V
VR_RDY
VCC + 0.3 V
VCC
6.5 V
IOUT
2.0 V
VRMP
+25 V
All Other Pins
VCC + 0.3 V
*All signals referenced to GND unless noted otherwise.
THERMAL INFORMATION
Description
Thermal Characteristic
QFN Package (Note 1)
Operating Junction Temperature Range (Note 2)
Operating Ambient Temperature Range
Maximum Storage Temperature Range
Max Power Dissipation
Moisture Sensitivity Level
QFN Package
*The maximum package power dissipation must be observed.
1. JESD 51−5 (1S2P Direct−Attach Method) with 0 LFM
2. JESD 51−7 (1S2P Direct−Attach Method) with 0 LFM
Symbol
RqJA
TJ
TSTG
Pd
MSL
VMIN
−0.3 V
−0.3 V
GND – 300 mV
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
Typ
68
−10 to 125
−10 to 100
−40 to +150
110 to 131
1
Unit
_C/W
_C
_C
_C
mW
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5
5 Page Table 1. VR12.5 VID CODES
VID7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID6
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID5
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NCP81119
VID4
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VID3
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
VID2
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
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11
VID1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Voltage
(V)
1.02
1.03
1.04
1.05
1.06
1.07
1.08
1.09
1.1
1.11
1.12
1.13
1.14
1.15
1.16
1.17
1.18
1.19
1.2
1.21
1.22
1.23
1.24
1.25
1.26
1.27
1.28
1.29
1.3
1.31
1.32
1.33
1.34
1.35
1.36
1.37
1.38
1.39
1.4
1.41
1.42
HEX
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
11 Page |
Páginas | Total 27 Páginas | |
PDF Descargar | [ Datasheet NCP81119.PDF ] |
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