LTC3773EG-PBF LINER [Linear Technology], LTC3773EG-PBF Datasheet - Page 12
LTC3773EG-PBF
Manufacturer Part Number
LTC3773EG-PBF
Description
Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking
Manufacturer
LINER [Linear Technology]
Datasheet
1.LTC3773EG-PBF.pdf
(32 pages)
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FUNCTIONAL DIAGRAM
LTC3773
12
PGOOD
TRACK
R1
V
R2
FB
V
0.54V
DR
SHDN
+ –
DRV
V
CC
V
100 s
DELAY
CC
V
CC
CH1 PBAD
0.6225V
CLKOUT
+ –
–
+
EA
0.66V
I
TH
R
CH3 PBAD
CH2 PBAD
0.6V
C
C
C
PHASEMD
–
+
2.4V
OV
+ –
SHDN
CH3
SDB3
1.8V
SLOPE
COMP
+ –
+
SHDN
CLK3
CLK2
CH2
SDB2
+
CLK1
5.3 x V
DUPLICATE FOR CH2 AND CH3
0.645V
+
1.2V
+ –
SHDN
OSCILLATOR
PHASE DET
CH1
FB
SDB1
Figure 1. Functional Diagram
–
S
R
LATCH
RS
SLOPE
COMP
1.8V
I
MASTER
BOT
1
Q
Q
0.5V
SHDN
–
+
–
SDB2
DROP
+
–
+
OUT
DET
+
54k
3mV
V
CC
–
FORCE CONT
FORCE BOT
SDB3
SHDN
54k
TOP ON
SLEEP
–
+
2.4V
I
2
+
–
RESET
3V
SWITCH
LOGIC
UV
INTERNAL
1V
SUPPLY
+
–
–
+
V
CC
TOP
BOT
3.94V
ENABLE
BURST
PLLIN/FC
36k
36k
PLLFLTR
R
LP
BOOST
TG
SW
V
BG
PGND
SENSE
SENSE
0.6V
V
DR
REF
F
IN
+
–
SGND
C
V
C
LP
CC
R
VCC
SENSE
V
DR
+
V
V
CC
D
OUT
C
B
B
L
V
IN
C
OUT
3773 F01
+
3773fb
C
IN
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