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| 型号： | LT1761IS5-2.0#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 19/22页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2V .1A TSOT23-5 |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2V |
| 输入电压： | 最高 20V |
| 电压 - 压降（标准）： | 0.3V @ 100mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 100mA |
| 电流 - 限制（最小）： | 110mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-5 细型，TSOT-23-5 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1328 (CN2011-ZH PDF) |
| 其它名称： | LT1761IS5-2.0#TRMPBFDKR |
LT1761 Series
APPLICATIONS INFORMATION
In situations where the ADJ pin is connected to a resistor
divider that would pull the ADJ pin above its 7V clamp volt-
age if the output is pulled high, the ADJ pin input current
must be limited to less than 5mA. For example, a resistor
divider is used to provide a regulated 1.5V output from the
1.22V reference when the output is forced to 20V. The top
resistor of the resistor divider must be chosen to limit the
current into the ADJ pin to less than 5mA when the ADJ
pin is at 7V. The 13V difference between output and ADJ
pin divided by the 5mA maximum current into the ADJ pin
yields a minimum top resistor value of 2.6k.
In circuits where a backup battery is required, several
different input/output conditions can occur. The output
voltage may be held up while the input is either pulled
to ground, pulled to some intermediate voltage or is left
open circuit. Current ?ow back into the output will follow
the curve shown in Figure 6.
When the IN pin of the LT1761-X is forced below the OUT
pin or the OUT pin is pulled above the IN pin, input cur-
rent will typically drop to less than 2μA. This can happen
if the input of the device is connected to a discharged
(low voltage) battery and the output is held up by either
a backup battery or a second regulator circuit. The state
of the SHDN pin will have no effect on the reverse output
current when the output is pulled above the input.
100
T J = 25°C
LT1761-BYP
90 V IN = 0V
LT1761-SD
70 V OUT = V ADJ
CURRENT FLOWS
80 INTO OUTPUT PIN
LT1761-1.2
(LT1761-BYP, -SD)
60
50
40
30
20
10
0
LT1761-1.5
LT1761-1.8
LT1761-2
LT1761-2.5
LT1761-2.8
LT1761-3
LT1761-5
LT1761-3.3
0
1
2
3
4
5
6 7 8
9
10
OUTPUT VOLTAGE (V)
1761 F06
Figure 6. Reverse Output Current
1761sff
19
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1761IS5-2-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:100mA, Low Noise, LDO Micropower Regulators in TSOT-23 |
| LT1761IS5-2-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:100mA, Low Noise, LDO Micropower Regulators in TSOT-23 |
| LT1761IS5-2-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:100mA, Low Noise, LDO Micropower Regulators in TSOT-23 |
| LT1761IS5-3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:100mA, Low Noise, LDO Micropower Regulators in TSOT-23 |
| LT1761IS5-3#PBF | 制造商:Linear Technology 功能描述:LDO FIXED 3V 100MA TSOT-23-5 制造商:Linear Technology 功能描述:LDO, FIXED, 3V, 100MA, TSOT-23-5, Input Voltage Min:1.8V, Input Voltage Max:20V, 制造商:Linear Technology 功能描述:LDO, FIXED, 3V, 100MA, TSOT-23-5, Input Voltage Min:1.8V, Input Voltage Max:20V, Output Current:100mA, Dropout Voltage Vdo:300mV, No. of Pins:5, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:- , RoHS Compliant: Yes |
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