LTC3604 Linear Technology, LTC3604 Datasheet - Page 8
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LTC3604
Manufacturer Part Number
LTC3604
Description
2.5A 15V Monolithic Synchronous Step-Down Regulator
Manufacturer
Linear Technology
Datasheet
1.LTC3604.pdf
(24 pages)
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LTC3604
FUNCTIONAL BLOCK DIAGRAM
8
R
RT
MODE/SYNC
RT
0.6V
REF
CONTROLLER
PLL-SYNC
SOFT-START
OSC
OSC
INTERNAL
V
I
ON
IN
I
THB
Q1
180k
+ +
EA
I
ON
Q2
t
ON
–
I
CMP
Q4
=
V
0.72V
I
+
–
VON
ION
Q6
V
ON
V
ON
15k
6V
ITH
0.48V
R
–
C
FOLDBACK
SS
R
S
C
AT START-UP
C1
FOLDBACK
DISABLED
+
–
Q
+
+
–
I
REV
0.3V
1.25V
–
RUN
RUN
ON
+
RUN
THROUGH
SWITCH
SHOOT
LOGIC
ANTI-
INT
AND
VCC
TRACK/SS
1.4μA
UV
OV
SENSE
–
+
+
–
SENSE
C
SS
+
3.3V
REG
TG
0.648V
–
BG
3604 BD
0.552V
INTV
V
IN
CC
C
IN
INTV
PGOOD
BOOST
M1
M2
SGND
PGND
www.DataSheet4U.com
V
SW
FB
CC
IN
C
BOOST
L1
C
VCC
R2
R1
C
OUT
3604f