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3433EFE 데이터 시트보기 (PDF) - Linear Technology
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3433EFE
High Voltage Step-Up/Step-Down DC/DC Converter
Linear Technology
3433EFE Datasheet PDF : 16 Pages
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LT3433
TYPICAL APPLICATIO S
8V-60V to 12V Converter
V
IN
8V TO 60V
D
S1
B160A
L1
200
µ
H
TDK SLF12565T-221M1R0
C6
2.2
µ
F
100V
D2
1N4148
C7
0.47
µ
F
20V
V
BST
SW_L
SW_H PWRGND
C3 330pF
(BURST)
LT3433
V
IN
V
OUT
BURST_EN V
BIAS
R1 68k
V
C
SHDN
C2 1nF
R2
20k
1%
R3
174k
1%
V
FB
SS
SGND
(NO BURST)
D
S2
B120A
V
OUT
12V
+
C5
47
µ
F
8V < V
IN
< 18V: 125mA
18V < V
IN
< 60V: 380mA
25V
C4
0.01
µ
F
D1
1N4148
C6
0.1
µ
F
20V
3433 TA04a
MODE SWITCH:
V
IN
H-L: 16.6V
V
IN
L-H: 17V
Efficiency
100
V
IN
= 20V
90
80
70
V
IN
= 20V
(BURST)
60
V
IN
= 8V
50
V
IN
= 8V
40
(BURST)
30
20
0.1
1
10
100
OUTPUT CURRENT (mA)
1000
3433 TA04b
Minimum Output Current vs V
IN
500
BRIDGED
400
300
200
BUCK
100
0
0 10 20 30 40 50 60
V
IN
(V)
3433 TA04c
3433f
14
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