LTM4633_15 Datasheet, PDF (9/32 Pages) Linear Technology – Triple 10A Step-Down DC/DC Module Regulator

Block Diagram
LTM4633
INTV_CC
12V
R1
40.2k
SS
CAP1
SGND
SGND
INTV_CC
R4
10k
4.7µF
12V
R2
40.2k
SS
CAP2
SGND INTV_CC
R5
10k
12V
R3
40.2k
SS
CAP3
SGND
MODE/PLLIN
FREQ/PLLLPF
INTERNAL
FILTER
RUN1 ^SGND
R_RUN1
10k
TK/SS1
COMP1
INTERNAL
COMP
SGND
MTOP1
MBOT1
0.36µH
CNTL_PWR
V_IN1
1µF
GND
SW1
V_OUT1
0.1µF
R_FBHI1
60.4k
GND
V_FB1
LOCATED NEAR POWER STAGES
PNP
TEMP1
C_IN1
22µF
C_IN2
22µF
V_OUT1
1.2V
+ ^10A
C_OUT1
SGND
V_FB1
R_FB1
121k
SGND
PGOOD12
INTV_CC
EXTV_CC
MTOP2
MBOT2
RUN2
TK/SS2
R_RUN2
10k
3-CHANNEL
POWER CONTROL
0.36µH
V_IN2
1µF
GND
SW2
V_OUT2
0.1µF
R_FBHI2
60.4k
GND
C_IN3
22µF
C_IN4
22µF
V_OUT2
1.5V
+ ^10A
C_OUT2
SGND
PGOOD3
COMP2
INTERNAL
COMP
SGND
RUN3
TK/SS3
R_RUN3
10k
COMP3
INTERNAL
COMP
SGND
MTOP3
MBOT3
PNP
TEMP2
V_FB2
LOCATED NEAR
POWER STAGES
1µF
0.68µH
V_IN3
GND
SW3
V_OUT3
0.1µF
R_FBHI3
60.4k
GND
SGND
2.2Ω
V_FB3
INTERNAL MODULE CONNECTION
V_FB2
R_FB2
69.8k
SGND
C_IN5
22µF
C_IN6
22µF
V_OUT3
3.3V
+ ^10A
C_OUT3
SGND
V_FB3
R_FB3
19.1k
SGND
4633 F01
V_IN
4.5V TO 16V
Figure 1. Simplified LTM4633 Block Diagram
4633f
For more information www.linear.com/LTM4633
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