ncp5381a ON Semiconductor, ncp5381a Datasheet - Page 5

• Manufacturer Part Number: ncp5381a
• Description: 2/3/4 Phase Buck Controller For Vr10 And Vr11 Pentium Iv Processor Applications
• Manufacturer: ON Semiconductor

VID_SEL
VR_RDY
VR_HOT
VR_FAN
VR_EN
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VTT
RISO1
VCCP
VSSP
680 W PULLUPS
CFB1
CD1
CF
RFB
RDRP
RT2
CH
RT2 LOCATED NEAR OUTPUT INDUCTORS
RFB1
RD1
RF
RISO2
10
37
40
39
16
15
17
19
20
18
2
3
4
5
6
7
8
9
1
RVCC
U1
Figure 3. Application Schematic for Three Phases
VID0
VID1
VID2
VID3
VID4
VID5
VID6
VID7
VR10/11
EN
VR_RDY
VR_HOT
VR_FAN
VS−
VS+
DIFFOUT
VFB
VDRP
COMP
ILIM
13
RLIM1
RLIM2
NCP5381A
+12 V
36
VCC
ROSC
CVCC1
12
DRVON
SS
DGND
AGND
VREF
CS1N
CS2N
CS3N
CS4N
NTC
CS1
CS2
CS3
CS4
11
CSS
G1
G2
G3
G4
35
29
14
34 RNTC1
38
30
22
21
31
24
23
32
26
25
33
28
27
http://onsemi.com
5
RNTC2
RT1
12 V_FILTER
12 V_FILTER
12 V_FILTER
4
3
2
4
3
2
4
3
2
C1
VCC
OD
IN
VCC
OD
IN
NCP3418B
VCC
OD
IN
DRVH
PGND
DRVH
PGND
DRVL
DRVL
DRVH
PGND
BAT54HT1
DRVL
BST
BST
BST
SW
SW
SW
D1
NTD85N02RT4
1
8
7
5
1
8
7
5
6
6
1
8
7
5
6
C3
12 V_FILTER
12 V_FILTER
R2
12 V_FILTER
C2
NTD60N02RT4
RS1
C4
+
CS1
L1
CPU GND