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LTM4644 Datasheet(PDF) 9 Page - Linear Technology

Part # LTM4644
Description  Triple Output 5A/5A/4A Step-Down DC/DC 關Module짰 Regulator
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4644 Datasheet(HTML) 9 Page - Linear Technology

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LTM4634
9
4634f
For more information www.linear.com/LTM4634
block DiagraM
Figure 1. Simplified LTM4634 Block Diagram
+
MTOP1
1.5µH
0.1µF
1µF
RFB1
19.1k
SGND
SGND
MBOT1
MTOP2
MBOT2
VOUT1
VFB1
COUT1
VFB1
VOUT1
3.3V
5A
VIN1
CNTL_PWR
SW1
GND
GND
TEMP1
LOCATED NEAR POWER STAGES
INTERNAL BLOCK DIAGRAM
CIN1
4.7µF
50V
PNP
+
1.5µH
0.1µF
1µF
RFBHI2
60.4k
RFBHI1
60.4k
2
24V
1µF
50V
SGND
VOUT2
VFB2
VIN2
COUT2
VFB2
VOUT2
5V
5A
SW2
GND
GND
TEMP2
LOCATED NEAR
POWER STAGES
RFB2
11.5k
SGND
CIN3
4.7µF
50V
100µF
50V
PNP
MTOP3
MBOT3
+
3.3µH
0.1µF
SS
CAP3
1µF
RFBHI3
60.4k
RRUN3
10k
R5
10k
RFB3
4.32k
SGND
SGND
SGND
SGND
2.2
COMP3
VOUT3
TK/SS3
RUN3
COMP2
VFB3
VIN3
COUT3
VFB3
4634 F01
VOUT3
12V
4A
SW3
GND
GND
RRUN2
10k
RUN2
PGOOD3
EXTVCC
INTVCC
INTVCC
INTVCC
R4
10k
PGOOD12
SGND
INTVCC
24V
R3
150k
24V
R2
150k
24V
RRUN1
10k
RUN1
FREQ/PLLLPF
MODE/PLLIN
R1
150k
CIN5
4.7µF
50V
3-CHANNEL
POWER CONTROL
SGND
SS
CAP2
TK/SS2
SGND
INTERNAL
COMP
SGND
INTERNAL
COMP
COMP1
SGND
5V
INTERNAL
COMP
SS
CAP1
TK/SS1
SGND
SGND
4.7µF
INTERNAL
FILTER
(R1 + 10k)1.3V
10k
VIN(UVLO) =
+



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