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參數(shù)資料
| 型號(hào)： | LT1170M |
| 廠商： | Linear Technology Corporation |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開(kāi)關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 11/20頁(yè) |
| 文件大小： | 266K |
| 代理商： | LT1170M |
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11
LT1170/LT1171/LT1172
Negative-to-Positive Buck-Boost Converter
Driving High Voltage FET
(for Off-Line Applications, See AN25)
(Note that maximum output currents are divided by 2 for LT1171, by 4 for LT1172.)
Negative Buck Converter
External Current Limit
External Current Limit
1170/1/2 TA05
V
IN
V
SW
LT1170
GND
10V TO
20V
D1
+
D
Q1
G
1170/1/2 TA06
V
X
D1
LT1170
GND
R2
≈
2V
V
C
R1
500
C4*
100
μ
F
V
OUT
12V
2A
1170/1/2 TA07
R3
2.2k
C1
0.22
μ
F
C2
1000
μ
F
D1
Q1
V
IN
V
C
FB
V
SW
LT1170
GND
OPTIONAL
INPUT FILTER
L3
V
IN
–20V
REQUIRED IF INPUT LEADS
≥
2"
PULSE ENGINEERING 92114, COILTRONICS 50-2-52
THIS CIRCUIT IS OFTEN USED TO CONVERT –48V TO 5V. TO GUARANTEE
FULL SHORT-CIRCUIT PROTECTION, THE CURRENT LIMIT CIRCUIT SHOWN
IN AN19, FIGURE 39, SHOULD BE ADDED WITH C1 REDUCED TO 200pF.
*
**
R2
1.24k
L1**
50
μ
H
OPTIONAL
OUTPUT
FILTER
C3
L2
R1
11.3k
+
+
1170/1/2 TA08
R2
C2
V
IN
V
C
FB
V
SW
LT1170
GND
V
IN
NOTE THAT THE LT1170
GND PIN IS NO LONGER
COMMON TO V
IN–
.
R1
1k
+
–
C1
1000pF
Q1
R
S
C3*
100
μ
F
–5.2V
4.5A
1170/1/2 TA09
R3
L1**
50
μ
H
R1
4.64k
C2
1000
μ
F
D1
C1
Q1
2N3906
V
IN
V
C
FB
V
SW
LT1170
GND
OPTIONAL
INPUT FILTER
L3
V
IN
–20V
LOAD
REQUIRED IF INPUT LEADS
≥
2"
PULSE ENGINEERING 92114
COILTRONICS 50-2-52
*
**
R2
1.24k
R4
12k
L2
4
μ
H
OPTIONAL
OUTPUT
FILTER
C4
200
μ
F
+
+
+
TYPICAL APPLICATIO S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1170CK | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1170CQ | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1170CT | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1172CN8 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1172CQ | VOLT REG NEG 5V 100MA SMD TO-243 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1170MK | 制造商:LINER 制造商全稱:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
| LT1170MK/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| LT1171 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
| LT1171C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
| LT1171CK | 制造商:LINER 制造商全稱:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
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