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参数资料
| 型号： | LT1107IS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST INV ADJ 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 输入电压： | 2 V ~ 30 V |
| 频率 - 开关： | 63kHz |
| 电流 - 输出： | 400mA |
| 同步整流器： | 无 |
| 工作温度： | -45°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
LT1107
TYPICAL PERFOR A CE C HARA C TERISTICS
100
Minimum/Maximum Frequency
vs ON Time, Step-Down Mode
100
Minimum/Maximum Frequency
vs ON Time, Step-Up Mode
70
Duty Cycle
Step-Down Mode
90
90
0 ° C ≤ T A ≤ 70 ° C
65
80
70
60
0 ° C ≤ T A ≤ 70 ° C
80
70
60
60
55
50
50
50
T A = 25 ° C
45
40
–55 ° C ≤ T A ≤ 125 ° C
40
–55 ° C ≤ T A ≤ 125 ° C
40
30
4
5
6
7
8
9
10 11 12 13 14
30
6
7
8
9
10 11 12 13 14 15 16
35
–55 –35 –15
5
25
45
65
85 105 125
5.3
5.2
5.1
5.0
4.9
4.8
4.7
ON TIME ( μ s)
LT1107-5
Output Voltage
1107 G11
12.20
12.15
12.10
12.05
12.00
11.95
11.90
11.85
11.80
ON TIME ( μ s)
LT1107-12
Output Voltage
1107 G12
1.30
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
TEMPERATURE ( ° C)
LT1107
Feedback Voltage
1107 G13
–55 –35 –15
5
25
45
65
85 105 125
–55 –35 –15
5
25
45
65
85 105 125
–55 –35 –15
5
25
45
65
85 105 125
TEMPERATURE ( ° C)
PI FU C TI
S
1107 G16
TEMPERATURE ( ° C)
1107 G17
TEMPERATURE ( ° C)
1107 G18
I LIM (Pin 1): Connect this pin to V IN for normal use. Where
lower current limit is desired, connect a resistor between
I LIM and V IN . A 220 ? resistor will limit the switch current
to approximately 400mA.
V IN (Pin 2): Input Supply Voltage.
SW1 (Pin 3): Collector of Power Transistor. For step-up
mode connect to inductor/diode. For step-down mode
connect to V IN .
SW2 (Pin 4): Emitter of Power Transistor. For step-up
mode connect to ground. For step-down mode connect to
GND (Pin 5): Ground.
AO (Pin 6): Auxiliary Gain Block (GB) Output. Open collector,
can sink 300 μ A.
SET (Pin 7): GB Input. GB is an op amp with positive input
connected to SET pin and negative input connected to
1.25V reference.
FB/SENSE (Pin 8): On the LT1107 (adjustable), this pin
goes to the comparator input. On the LT1107-5 and
LT1107-12, this pin goes to the internal application resistor
that sets output voltage.
inductor/diode. This pin must never be allowed to go more
than a Schottky diode drop below ground.
1107fa
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1107M | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107MJ8 | 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 2V to 30V 8-Pin CDIP |
| LT1107MJ8-12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1107MJ8-5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
| LT1108 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower DC/DC Converter Adjustable and Fixed 5V, 12V |
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