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参数资料
| 型号： | LT1171ITTR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 5.5 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封装： | PLASTIC, TO-220, 5 PIN |
| 文件页数： | 4/20页 |
| 文件大小： | 278K |
| 代理商： | LT1171ITTR |
12
LT1170/LT1171/LT1172
117012ff
Negative-to-Positive Buck-Boost Converter
(Note that maximum output currents are divided by 2 for LT1171, by 4 for LT1172.)
Negative Buck Converter
External Current Limit
C4*
100
F
VOUT
12V
2A
1170/1/2 TA07
R3
2.2k
C2
1000
F
D1
C1
0.22
F
Q1
VIN
VC
FB
VSW
LT1170
GND
OPTIONAL
INPUT FILTER
L3
VIN
–20V
REQUIRED IF INPUT LEADS
≥ 2"
PULSE ENGINEERING 92114, COILTRONICS 50-2-52
*
**
R2
1.24k
L1**
50
H
OPTIONAL
OUTPUT
FILTER
C3
L2
R1
11.3k
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.
+
1170/1/2 TA08
R2
C2
VIN
VC
FB
VSW
LT1170
GND
VIN
NOTE THAT THE LT1170
GND PIN IS NO LONGER
COMMON TO VIN
–.
R1
1k
+
–
C1
1000pF
Q1
RS
C3*
100
F
–5.2V
4.5A
1170/1/2 TA09
R3
L1**
50
H
R1
4.64k
C2
1000
F
D1
C1
Q1
2N3906
VIN
VC
FB
VSW
LT1170
GND
OPTIONAL
INPUT FILTER
L3
VIN
–20V
LOAD
REQUIRED IF INPUT LEADS
≥ 2"
PULSE ENGINEERING 92114
COILTRONICS 50-2-52
*
**
R2
1.24k
R4
12k
L2
4
H
OPTIONAL
OUTPUT
FILTER
C4
200
F
+
TYPICAL APPLICATIO S
U
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PDF描述 |
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| LT1170CT#PBF06 | 11 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PZFM5 |
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| 5962-9207901MPA | 1.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, CDIP8 |
| 5962-9207901MPX | 1.25 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, CDIP8 |
| LT1172HVIQ#TRPBF | 3.5 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PSSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1171M | 制造商:LINER 制造商全称:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
| LT1171MK | 制造商:LINER 制造商全称:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
| LT1171MK/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Current-Mode SMPS Controller |
| LT1172 | 制造商:LINER 制造商全称:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
| LT1172C | 制造商:LINER 制造商全称:Linear Technology 功能描述:100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators |
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