LTC3425 Linear Technology, LTC3425 Datasheet - Page 10
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LTC3425
Manufacturer Part Number
LTC3425
Description
5A 8MHz 4-Phase Synchronous Step-Up DC/DC Converter
Manufacturer
Linear Technology
Datasheet
1.LTC3425.pdf
(24 pages)
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LTC3425
BLOCK DIAGRA
OFF ON REFOUT
10
SYNC
OFF ON
26
28
30
25
31
15
9
CCM
R
SYNCIN
SYNCOUT
THERMAL SHDN
SHDN
REFEN
REFOUT
0.8V
T
FB
SHUTDOWN
+
–
4-PHASE
DIVIDER
GEN
OSC
MODE CONTROL
1
GNDA
W
4
4
29
ENABLE
IOSC
2
CLK
V
PMOS
IN
+
–
V
7
1 OF 4
GNDB
REF
8
SLEEP
MODE
1.22V
V
REF
17
+
PWM LOGIC
GNDC
ANTIRING
DRIVERS
AND
1V TO 4.5V
18
Burst Mode
CONTROL
SLOPE
23
GNDD
SWA
3
24
UV
OV
BURST
COMP
SGND
6
11
SWB
N
+
–
–
–
+
+
–
33
SWC
I/2000
19
+
–
+
–3%
3%
–
+
0.94V
SWD
22
P
ZERO
4
14
+
BURST
4
THERMAL REG
+
+
4
SOFT-START
START-UP,
ERROR
AND
32
AMP
1.086/
SS
1.116
+
–
+
–
I
LIMIT
27
I
LIM
1.22V
PGOOD
www.DataSheet4U.com
V
V
V
V
V
COMP
OUTA
OUTB
OUTC
OUTD
OUTS
FB
20
21
10
16
12
13
4
5
V
2.5V TO 5.25V
OUT
3425f