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LT3667 Datasheet(PDF) 14 Page - Linear Technology

Part # LT3667
Description  40V 400mA Step-Down Switching Regulator with Dual Fault Protected LDOs
PDF  34 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3667 Datasheet(HTML) 14 Page - Linear Technology

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LT3667
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3667fb
For more information www.linear.com/LT3667
BLOCK DIAGRAM (QFN)
ERROR
AMPLIFIER
0.88V
0.72V
OUT3
EN3/
ILIM3
1V
0.4V
0.4V
1V
80
80
LDO
DISABLE
LDO
DISABLE
OUT2
PG
IN2
FB2
FB3
VOUT2
C4
VIN1
C1
C5
VOUT3
0.72V
ERROR
AMPLIFIER
R3
R4
R6
R5
CURRENT LIMIT
AMPLIFIER
CURRENT LIMIT
AMPLIFIER
+ –
LDO
DRIVER
+
–
ERROR
AMPLIFIER
+
–
14
13
8
IN3
6
15
EN2/
ILIM2
16
18
7
BD
5
B00ST
1
SW
3667 BD QFN
24
DA
23
2
17
+
–
+
–
LDO
DRIVER
PG2
11
PG3
12
PG1
9
0.8V
INTERNAL REF
SLOPE COMP
Burst Mode
DETECT
OSCILLATOR
250kHz TO 2.2MHz
1.2V
IN1
20
UVLO1
EN
1.32V
VC
4M
RT
SYNC
4
RT
1.08V
+
–
19
3
R
S
Q
BOOST
DIODE
CATCH DIODE
CURRENT LIMIT
C2
VOUT1
C3
L1
D1
+
–
10
FB1
R2
R1
25
GND



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