LTC3882-1
105
Rev A
Figure 55. High Density 1.5V/45A 650kHz Converter Using Dual Power Block
LTC3882-1
SCL
RUN1
RUN0
I
SENSE0
+
I
SENSE0
–
V
SENSE0
+
V
SENSE0
–
V
SENSE1
–
FAUL
T0
FAUL
T1
SHARE_CLK
SYNC
FB0
COMP0
TSNS0
R30 60.4k
C26 180pF
TSNS1
TSNS0
TSNS1
GND
38821 F55
I
AVG_GND
PWM0
PGOOD0
V
SENSE1
+
I
SENSE1
–
I
SENSE1
+
PWM1
PGOOD1
FB1
V
DD33
PWM0
V
IN
7V TO 13.2V
V
SENSE
+
V
SENSE
–
PWM1
D12S1R845A
SCL
SDA
RUN
ALER
T
SDA
ALER
T
C27 18pF
R29 4.12k
C25 470pF
C119 0.22µF
C130 0.22µF
C129 1.0µF
C124 1.0µF
C117 100µF
×
2
C120 470µF
×
3
C107 2.2µF
COMP1
+CSB
–CSB
C110 47µF
R21 100k
C111 22µF
V
INB
V
INA
+7V
4
V
IN
V
CC
V
DD25
V
DD25
V
DD33
V
DD25
V
DD33
VINSNS
–CSA
+CSA
PWMA
PWM0
PWMB
PWM1
V
OUT
1.5V 45A
GND
V
OUT
A
V
OUTB
TEMP
A
TEMPB
TSNS1
V
SENSE
–
V
SENSE
+
TSNS0
POWER BLOCK: DEL
TA D12S1R845A
GND
GND
GND
11
2
6
V
OUT0_CFG
ASEL1
ASEL0
V
OUT1_CFG
FREQ_CFG
PHAS_CFG
I
AVG1
I
AVG0
12
10
3
5
15
16
8
7
9
13
1
14
+
41
5
27
26
31
32
33
29
28
3
2
1
40
35
34
36
37
38
6
7
30
39
21
20
19
18
17
16
23
8
15
14
13
12
11
10
9
25
22
24
4
R20 4.99k
R19 4.99k
R18 10k
R17 10k
R15 10k
C18 4.7µF
+3.3V INPUT SUPPL
Y
+7V INPUT SUPPL
Y
C17 1µ
F
C16 0.1
µF
C8 100nF
R5 1Ω
R14 4.22k
R35 5.76k
R34 24.9k
C35 100pF
V
DD33
TYPICAL APPLICATIONS
