NCP5314 PDF даташит
Спецификация NCP5314 изготовлена «ON Semiconductor» и имеет функцию, называемую «Two/Three/Four-Phase Buck CPU Controller». |
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Детали детали
Номер произв | NCP5314 |
Описание | Two/Three/Four-Phase Buck CPU Controller |
Производители | ON Semiconductor |
логотип |
28 Pages
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NCP5314
Two/Three/Four−Phase
Buck CPU Controller
The NCP5314 provides full−featured and flexible control for the
latest high−performance CPUs. The IC can be programmed as a two−,
three− or four−phase buck controller, and the per−phase switching
frequency can be as high as 1.2 MHz. Combined with external gate
drivers and power components, the controller implements a compact,
highly integrated multi−phase buck converter.
Enhanced V2™ control inherently compensates for variations in
both line and load, and achieves current sharing between phases. This
control scheme provides the industry’s fastest transient response,
reducing the need for large banks of output capacitors and higher
switching frequency.
The controller meets VR(M)10.x specifications with all the required
functions and protection features.
Features
• Switching Regulator Controller
♦ Programmable 2/3/4 Phase Operation
♦ Lossless Current Sensing
♦ Enhanced V2 Control Method Provides Fast Transient Response
♦ Programmable Up to 1.2 MHz Switching Frequency Per Phase
♦ 0 to 100% Adjustment of Duty Cycle
♦ Programmable Adaptive Voltage Positioning Reduces Output
Capacitor Requirements
♦ Programmable Soft−Start
• Current Sharing
♦ Differential Current Sense Pins for Each Phase
♦ Current Sharing Within 10% Between Phases
• Protection Features
♦ Programmable Pulse−by−Pulse Current Limit for Each Phase
♦ “111110” and “111111” DAC Code Fault
♦ Latching Off Overvoltage Protection
♦ Programmable Latching Overcurrent Protection
♦ Undervoltage Lockout
♦ External Enable Control
♦ Three−State MOSFET Driver Control through Driver−On Signal
• System Power Management
♦ 6−Bit DAC with 0.5% Tolerance Compatible with VR(M)10.x
Specification
♦ Programmable Lower Power Good Threshold
♦ Power Good Output
© Semiconductor Components Industries, LLC, 2004
September, 2004 − Rev. 9
1
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MARKING DIAGRAMS
32
1
32 PIN QFN
MN SUFFIX
CASE 485J
(Bottom View)
NCP5314
AWLYYWW
LQFP−32
FTB SUFFIX
CASE 873A
NCP5314
AWLYYWW
32
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
Text orientation may vary.
PIN CONNECTIONS
VID2
VID3
VID4
PWRLS
VFFB
SS
PWRGD
DRVON
32 31 30 29 28 27 26 25
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 10 11 12 13 14 15 16
ILIM
ROSC
VCC
GATE1
GATE2
GATE3
GATE4
GND
ORDERING INFORMATION
Device
Package
Shipping†
NCP5314MNR2 32 Pin QFN 2000 Tape & Reel
NCP5314FTR2 LQFP−32 2000 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.
Publication Order Number
NCP5314/D
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ATX 12 V
12 V
3.3 V
ENABLE
VID5
VID0
VID1
1.5 k Typ
RCS1
CCS1
CCS2
RCS2
VID2
VID3
VID4
3.3 V
1.5 k Typ
PWRGD
1 VID2
2 VID3
3 VID4
4 PWRLS
5 VFFB
6 SS
7 PWRGD
8 DRVON
NCP5314
ILIM 24
ROSC 23
VCC 22
GATE1 21
GATE2 20
GATE3 19
GATE4 18
GND 17
R1 R2
SGND Near
Socket
VFFB
Connection
Rfb
CCS3
RCS3
CCS4
RCS4
LIN
+
CIN
6
4
VS
CO
BST 3
TG 2
5 EN DRN 1
8 PGND BG 7
NCP5355
6
4
VS
CO
BST 3
TG 2
5 EN DRN 1
8 PGND BG 7
NCP5355
L01
VCORE
+
GND
COUT
L02
6
4
VS
CO
BST 3
TG 2
5 EN DRN 1
8 PGND BG 7
NCP5355
L03
6
4
VS
CO
BST 3
TG 2
5 EN DRN 1
8 PGND BG 7
NCP5355
L04
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NCP5314
MAXIMUM RATINGS
Rating
Value
Unit
Operating Junction Temperature
150 °C
Lead Temperature Soldering, Reflow (Note 1)
230 peak
°C
Storage Temperature Range
−65 to 150
°C
ESD Susceptibility: Human Body Model
2.0 kV
JEDEC Moisture Sensitivity Level (MSL): LQFP
QFN
1−
2−
Package Thermal Resistance: RθJA
LQFP
QFN, Pad Soldered to PCB
52 °C/W
34
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. 60 second maximum above 183°C.
MAXIMUM RATINGS
Pin Number
Pin Symbol
1−3, 30−32
4
VID0−VID5
PWRGDS
5 VFFB
6 SS
7 PWRGD
8 DRVON
9 SGND
10 VDRP
11 VFB
12 COMP
13 CS4N
14 CS4P
15 CS3N
16 CS3P
17 GND
18−21
GATE4−GATE1
22 VCC
23 ROSC
24 ILIM
25 CS1P
26 CS1N
27 CS2P
28 CS2N
29 ENABLE
VMAX
18 V
7.0 V
7.0 V
7.0 V
18 V
7.0 V
1.0 V
7.0 V
7.0 V
7.0 V
18 V
18 V
18 V
18 V
−
18 V
18 V
7.0 V
7.0 V
18 V
18 V
18 V
18 V
18 V
VMIN
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−1.0 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
−0.3 V
ISOURCE
1.0 mA
ISINK
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
20 mA
1.0 mA
1.0 mA
1.0 mA
−
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
0.4 A, 1.0 ms, 100 mA DC
−
0.1 A, 1.0 ms, 25 mA DC 0.1 A, 1.0 ms, 25 mA DC
− 0.4 A, 1.0 ms, 100 mA DC
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
1.0 mA
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