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LTC3738 데이터 시트보기 (PDF) - Linear Technology
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LTC3738
3-Phase Buck Controller for Intel VRM9/VRM10 with Active Voltage Positioning
Linear Technology
LTC3738 Datasheet PDF : 32 Pages
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LTC3738
W
FU CTIO AL DIAGRA
TSNS
PGOOD
0.66V
2.4V
FCB/SYNC
2.5
µ
A
+
0.6V
–
R
LP
PLLFLTR
C
LP
FCB
PHASE DET
OSCILLATOR
IN
–
IN
+
R
PRE-AVP
AVP
R
AVP
EAIN
80k
80k
–
A1
+
80k
80k
–+
–
+
–
+
+–
ADDER
SENSE1
+
SENSE1
–
SENSE2
+
SENSE2
–
SENSE3
+
SENSE3
–
V
FB
0.600V
–
EA
+
+
OV
100
µ
s
BLANKING
VID TRANSITIONS
EAIN
0.54V
V
CC
/3
INTERNAL
THERMAL
DETECTION
TCMP
–
+
MUX
VR_HOTB
CLK1
CLK2
CLK3
DUPLICATE FOR SECOND AND THIRD
CONTROLLER CHANNELS
BOOST
RS
LATCH
SQ
RQ
DROP
OUT
DET
TG
TOP
FORCED BOT
TOP ON
SW
SWITCH
LOGIC
V
CC
BG
BOT
FCB
SHDN
PGND
V
CC
V
IN
D
B
C
B
–
I
1
– +
I
2
+
3mV
V
CC
30k
SENSE
+
L
R1
8k
SLOPE
COMP
5(V
FB
)
30k
SENSE
–
R
SENSE
C
OUT
45k
45k
2.4V
V
OUT
0.660V
–
I
TH
C
C
R
C
VID
SELECTION
R2 VARIABLE
VRM9/VRM10 VID DECODER
V
CC
1.5
µ
A
6V
SHDN
RST
5(V
FB
)
SHED
RUN
SOFT-
START
0.600V
INTERNAL
SUPPLY
V
REF
V
CC
SGND
V
CC
+
C
CC
SS
+
C
IN
NO_CPU
1
µ
s
OUTEN
C
SS
100k
VID5 VID0 VID1 VID2 VID3 VID4
3738 F01
Figure 1
3738f
10
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