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參數(shù)資料
| 型號(hào)： | LT1070CT |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | Dual 1-of-4 Data Selectors/Multiplexers 16-PDIP 0 to 70 |
| 中文描述： | 11 A SWITCHING REGULATOR, 47 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封裝： | PLASTIC, TO-220, 5 PIN |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大小： | 314K |
| 代理商： | LT1070CT |
9
LT1070/LT1071
TYPICAL APPLICATIO
N
S
(Note that maximum output currents are divided by 2 for the LT1071)
Positive Current Boosted Buck Converter
R3
680
C1
0.33
μ
F
200pF
*REQUIRED IF INPUT LEADS
≥
2"
R4
1.24k
C2
5000
μ
F
V
OUT
5V
10A
V
IN
28V
R1
5k
V
SW
V
IN
C3
0.47
μ
F
C6
0.002
μ
F
D2
470
2W
1:N
N
≈
0.25
LT1070
GND
V
C
FB
1070/71 TA19
R6
470
–
+
COMP
LM308
V
IN
R2
1k
R7
1.24k
R5
5k
V
–
7
D1
2
3
8
4
6
V
+
+
C5*
100
μ
F
+
Positive to Negative Buck/Boost Converter
+
R1
11.3k
1070/71 TA05
V
12V
2A
V
IN
–12V
R3
2.2k
C1
0.22
μ
F
R2
1.24k
*
**
REQUIRED IF INPUT LEADS
≥
2"
PULSE ENGINEERING 92113
C2
1000
μ
F
+
C4*
100
μ
F
L1**
150
μ
H
Q1
D1
V
SW
V
C
V
IN
LT1070
GND
FB
C3
L2
OPTIONAL
OUTPUT
FILTER
L3
OPTIONAL
INPUT
FILTER
+
R6
470
1070/71 TA09
V
10V TO 30V
*
**
REQUIRED IF INPUT LEADS
≥
2"
PULSE ENGINEERING 92113
TO AVOID START-UP
PROBLEMS FOR INPUT
VOLTAGES BELOW 10V,
CONNECT ANODE OF D3
TO V
AND REMOVE R5.
C1 MAY BE REDUCED FOR
LOWER OUTPUT CURRENTS.
C1
≈
(500
μ
F)(I
) FOR 5V
OUTPUTS, REDUCE R3 TO
1.5k, INCREASE C2 TO 0.3
μ
F
AND REDUCE R6 TO 100
.
V
–12V
2A
R3
5k
R2
1.24k
C1
0.1
μ
F
C5*
100
μ
F
C3
2
μ
F
+
C4
5
μ
F
+
C1
1000
μ
F
L1**
200
μ
H
V
SW
V
C
V
IN
LT1070
R5
470
1W
D3
1N4001
R1
10.7k
R4
47
D2
1N914
D1
GND
FB
Negative to Positive Buck/Boost Converter
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