Rainbow Electronics MAX17480 - Manual (Page 23)

MAX17480
AMD 2-/3-Output Mobile Serial
VID Controller
______________________________________________________________________________________ 23
MAX17480
N L1 D L1
N H1
39
OSC
13
V DDIO
12
SVC
11
SVD
40
TIME
27
BST1
29
DH1
28
LX1
26
DL1
32
V CC
25
V DD
C LX1
C DCR1
CSP1
R ILIM2
R OSC
1
ILIM12
R VCC
10 Ω
R CSP1
CSP1
+5V
CSN1
R CSN1
2x 100k Ω
R NTC
R ILIM1
R LX1 R DCR1
C VCC
2.2 µ F
C BST1
0.22 µ F
33
CSP1
34
CSN1
C CS1
C VDD
1 µ F
C CSN1
AGND
C IN1
C OUT
3x330 µ F
6m Ω
PWR
V IN
4V TO 26V
L1
0.45 µ H
L2
0.45 µ H
PWR
PWR
PWR
CSN1
V CORE /36A TDC
R FBAC1
2k Ω
R FBDC1
2k Ω
36
FBAC1
35
FBDC1
C FB1
2200pF
N L2 D L2
N H2
23
BST2
21
DH2
22
LX2
24
DL2
C LX2
C DCR2
CSP2
R LX2 R DCR2
C BST2
0.22 µ F
C IN2
PWR
V IN
4.5V TO 28V
PWR
PWR
PWR
PWR
PWR
CSN2
R CSP2
CSP2
CSN2
CORE0 SENSE_H
R CSN2
18
CSP2
17
CSN2
C CS2
C CSN2
AGND
AGND
1.5V OR 1.8V
19
PGD_IN SYSTEM POWER-GOOD
3, 4
IN3
5, 6
LX3
7
BST3
V IN_NB
2.7V TO 5.5V
2
ILIM3 V CC
+3.3V
V CC
V OUT3 /4A
8
SHDN
20
PWRGD
30
VRHOT
31
THRM
AGND
38
OPTION
SERIAL INPUT
CORE0 SENSE_L
100 Ω
37
GNDS1
4700pF
AGND
4700pF
AGND
36A
CORE
REGULATOR
100 Ω
R FBAC2
2k Ω
R FBDC2
2k Ω
15
FBAC2
16
FBDC2
C FB2
2200pF
V CORE
POWER GROUND
ANALOG GROUND
V DDIO
14
GNDS2
4700pF
AGND
100 Ω
EP = PGND
ON OFF
OFFSET OPTION
BIT1 (VDD0)
BIT2 (VDD1)
BIT1 (VDD0)
BIT2 (VDD1) 0
0
1
1 V CC
OPEN
REF
GND
BIT2 (VDD1)
BIT1 (VDD0)
BIT2 (VDD1)
BIT1 (VDD0)
SMPS1
ADDR
SMPS2
ADDR
I LX3_PK (A) ILIM3
+12.50
+12.50
4-LEVEL
ILIM3
5.25
4.25 V CC
GND
SMPS3
OFFSET (mV)
R THRM
NB SENSE_H
9
OUT3
10
AGND
100 Ω
C IN_NB
4700pF
C BST3
0.1 µ F
C OUT3
220 µ F
6m Ω
L3
1.5 µ H
AGND
AGND
INTERNAL
4A NB
REGULATOR
CONNECT GNDS2 TO V DDIO
FOR UNIFIED CORE OPERATION
Figure 3. Caspian/Tigris Standard Application Circuit