参数资料
| 型号： | LT1120IS8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 125MA 8SOIC |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 2.5 V ~ 35.15 V |
| 输入电压： | 4.5 V ~ 36 V |
| 电压 - 压降（标准）： | 0.4V @ 125mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 125mA（最小） |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
LT1120
Micropower Regulator with
Comparator and Shutdown
FEATURES
DESCRIPTIO
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40 μ A Supply Current
125mA Output Current
2.5V Reference Voltage
Reference Output Sources 2mA and Sinks 2mA
Open Collector Comparator Sinks 10mA
Logic Shutdown
0.2V Dropout Voltage
Thermal Limiting
Available in 8-Lead DIP and SO Packages
The LT ? 1120 is a combination micropower positive regu-
lator and free collector comparator on a single monolithic
chip. With only 40 μ A supply current, the LT1120 can
supply over 125mA of output current. Input voltage range
is from 4.5V to 36V and dropout voltage is 0.6V at 125mA.
Dropout voltage decreases with lower load currents. Also
included on the chip is a class B output 2.5V reference that
can either source or sink current. A shutdown pin allows
logic shutdown of the output.
APPLICATIO S
The comparator can be used for system or battery moni-
toring. For example, the comparator can be used to warn
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Battery Systems
Battery-Backup System
Portable Terminals
Portable Instruments
Memory Keep-Alive
of low system voltage. Frequency compensation of the
comparator for amplifier applications can be obtained by
adding external output capacitance.
The 2.5V reference will source or sink current. This allows
it to be used as a supply splitter or auxiliary output.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
Dropout Voltage and Supply Current
5V Regulator
1.00
10
V IN > 5.2V
I Q = 40 μ A
5
V IN
V OUT
4
5V
+
10 μ F
LT1120
FB
2
0.001 μ F
1M
+
25 μ F
0.10
1
SHDN
GND
3
1
1M
SHUTDOWN
1120 TA01
0.01
0.1
0.1
1
10 100
1000
OUTPUT CURRENT (mA)
1120 TA02
1120fd
1
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相关代理商/技术参数 |
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| LT1120MH/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Positive Adjustable Voltage Regulator |
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| LT1121_07 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
| LT1121_12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
| LT1121-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
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