参数资料
| 型号： | LT1121CST-5 |
| 厂商： | Linear Technology |
| 文件页数： | 12/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V .15A SOT223-3 |
| 标准包装： | 78 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 30V |
| 电压 - 压降（标准）： | 0.42V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-261-4，TO-261AA |
| 供应商设备封装： | SOT-223 |
| 包装： | 管件 |
LT1121/LT1121-3.3/LT1121-5
APPLICATIONS INFORMATION
When the input of the LT1121 is forced to a voltage below
its nominal output voltage and its output is held high, the
reverse output current will still follow the curve in Figure
2. This condition can occur if the input of the LT1121 is
connected to a discharged (low voltage) battery and the
output is held up by either a backup battery or by a second
regulator circuit. When the input pin is forced below the
output pin or the output pin is pulled above the input pin,
the input current will typically drop to less than 2μA (see
Figure 3). The state of the shutdown pin will have no effect
on the reverse output current when the output is pulled
above the input.
5
4
3
2
1
0
0
V OUT = 3.3V (LT1121-3.3)
V OUT = 5V (LT1121-5)
1 2 3
INPUT VOLTAGE (V)
4
5
1121 F03
Figure 3. Input Current
Table 7. Fault Condition s
INPUT PIN
SHDN PIN
OUTPUT PIN
<V OUT (Nominal)
<V OUT (Nominal)
Open
Open
≤0.8V
≤0.8V
>1.5V
–30V < V IN < 30V
Open (Hi)
Grounded
Open (Hi)
Grounded
Open (Hi)
Grounded
Open (Hi)
Grounded
Forced to V OUT (Nominal)
Forced to V OUT (Nominal)
Forced to V OUT (Nominal)
Forced to V OUT (Nominal)
≤0V
≤0V
≤0V
≤0V
Reverse Output Current ≈ 15μA (See Figure 2)
Input Current ≈ 1μA (See Figure 3)
Reverse Output Current ≈ 15μA (See Figure 2)
Input Current ≈ 1μA (See Figure 3)
Reverse Output Current ≈ 15μA (See Figure 2)
Reverse Output Current ≈ 15μA (See Figure 2)
Output Current = 0
Output Current = 0
Output Current = Short-Circuit Current
Output Current = 0
1121fg
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1121CST-5#PBF | 功能描述:IC REG LDO 5V .15A SOT223-3 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:MIC5365/66 Ultra-small LDO Regulators 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:3V 输入电压:最高 5.5V 电压 - 压降（标准）:0.155V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:200mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:4-UDFN 裸露焊盘，4-TMLF? 供应商设备封装:4-TMLF?（1x1） 包装:Digi-Reel® 其它名称:576-3192-6 |
| LT1121CST-5#PBF | 制造商:Linear Technology 功能描述:Linear Voltage Regulator IC 制造商:Linear Technology 功能描述:IC, LDO VOLT REG, 5V, 150mA, SOT-223-3 |
| LT1121CST-5#TR | 功能描述:IC REG LDO 5V .15A SOT223-3 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件 |
| LT1121CST-5#TRPBF | 功能描述:IC REG LDO 5V .15A SOT223-3 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:More Information on LDOs 标准包装:50 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.3V 输入电压:最高 15V 电压 - 压降（标准）:1.1V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:800mA 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-4，D²Pak（3 引线+接片），TO-263AA 供应商设备封装:D2PAK-3 包装:管件 |
| LT1121CST-5PBF | 制造商:Linear Technology 功能描述:LDO Regulator Positive 5V 0.15A SOT223 |
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