Linear（凌力尔特）| Linear产品型号搜索
LT1121技术文档下载：
LT1121 - 典型应用图例：
LT1121 - 封装图解：
LT1121 - LT1121是具停机功能的微功率低压差稳压器
LT1121是Linear公司的一款正稳压器产品，LT1121是具停机功能的微功率低压差稳压器，本站介绍了LT1121的封装应用图解、特点和优点、功能等，并给出了与LT1121相关的凌力尔特元器件型号供参考。
LT1121 - 具停机功能的微功率低压差稳压器
LT1121 - 具停机功能的微功率低压差稳压器 - Linear Technology（凌力尔特）
功能描述
LT1121 / LT1121-3.3 / LT1121-5 是具停机功能的微功率低压差稳压器。这些器件能够在压差电压为 0.4V 的条件下提供 150mA 的输出电流。它们专为在电池供电型系统中使用而设计，低静态电流 (在工作期间为 30μA，而在停机模式中则为 16μA) 使其成为一种理想的选择。静态电流处于良好受控状态；在压差条件下，静态电流不会上升，这与许多其他的低压差 PNP 稳压器是不同的。
LT1121 / LT1121-3.3 / LT1121-5 的其他特点包括：在采用非常小输出电容器的情况下正常运作的能力。它们可在输出端上布设了仅 0.33μF 电容器的情况下实现稳定，而大多数老式器件则需要采用 1μF 至 100μF 的输出电容器来实现稳定。由于能够使用小的陶瓷电容器，因而增强了可制造性。另外，输入可以连接至地或一个反向电压，而不会产生从输出端流至输入端的反向电流。这使得 LT1121 系列非常适合于那些输出被保持于高电平和输入处于地电位或被反转的备用电源场合。在这些条件下，从输出引脚流至地的电流将仅为 16μA。
特点
应用
以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
|---|---|---|---|---|
| LT1121ACS8 | SO-8 | C | $2.50 | $1.95 |
| LT1121ACS8-3.3 | SO-8 | C | $2.50 | $1.95 |
| LT1121ACS8-3.3#PBF | SO-8 | C | $2.50 | $1.95 |
| LT1121ACS8-3.3#TR | SO-8 | C | $2.01 | |
| LT1121ACS8-3.3#TRPBF | SO-8 | C | $2.01 | |
| LT1121ACS8-5 | SO-8 | C | $2.50 | $1.95 |
| LT1121ACS8-5#PBF | SO-8 | C | $2.50 | $1.95 |
| LT1121ACS8-5#TR | SO-8 | C | $2.01 | |
| LT1121ACS8-5#TRPBF | SO-8 | C | $2.01 | |
| LT1121ACS8#PBF | SO-8 | C | $2.50 | $1.95 |
| LT1121ACS8#TR | SO-8 | C | $2.01 | |
| LT1121ACS8#TRPBF | SO-8 | C | $2.01 | |
| LT1121AHVCS8 | SO-8 | C | $2.78 | $2.35 |
| LT1121AHVCS8#PBF | SO-8 | C | $2.78 | $2.35 |
| LT1121AHVCS8#TR | SO-8 | C | $2.42 | |
| LT1121AHVCS8#TRPBF | SO-8 | C | $2.42 | |
| LT1121AHVIS8 | SO-8 | I | $3.26 | $2.75 |
| LT1121AHVIS8#PBF | SO-8 | I | $3.26 | $2.75 |
| LT1121AHVIS8#TR | SO-8 | I | $2.81 | |
| LT1121AHVIS8#TRPBF | SO-8 | I | $2.81 | |
| LT1121AIS8 | SO-8 | I | $2.92 | $2.30 |
| LT1121AIS8-3.3 | SO-8 | I | $2.92 | $2.30 |
| LT1121AIS8-3.3#PBF | SO-8 | I | $2.92 | $2.30 |
| LT1121AIS8-3.3#TR | SO-8 | I | $2.36 | |
| LT1121AIS8-3.3#TRPBF | SO-8 | I | $2.36 | |
| LT1121AIS8-5 | SO-8 | I | $2.92 | $2.30 |
| LT1121AIS8-5#PBF | SO-8 | I | $2.92 | $2.30 |
| LT1121AIS8-5#TR | SO-8 | I | $2.36 | |
| LT1121AIS8-5#TRPBF | SO-8 | I | $2.36 | |
| LT1121AIS8#PBF | SO-8 | I | $2.92 | $2.30 |
| LT1121AIS8#TR | SO-8 | I | $2.36 | |
| LT1121AIS8#TRPBF | SO-8 | I | $2.36 | |
| LT1121CN8 | N-8 | C | $1.83 | $1.50 |
| LT1121CN8-3.3 | N-8 | C | $1.83 | $1.50 |
| LT1121CN8-3.3#PBF | N-8 | C | $1.83 | $1.50 |
| LT1121CN8-5 | N-8 | C | $1.83 | $1.50 |
| LT1121CN8-5#PBF | N-8 | C | $1.83 | $1.50 |
| LT1121CN8#PBF | N-8 | C | $1.83 | $1.50 |
| LT1121CS8 | SO-8 | C | $2.00 | $1.60 |
| LT1121CS8-3.3 | SO-8 | C | $2.00 | $1.60 |
| LT1121CS8-3.3#PBF | SO-8 | C | $2.00 | $1.60 |
| LT1121CS8-3.3#TR | SO-8 | C | $1.66 | |
| LT1121CS8-3.3#TRPBF | SO-8 | C | $1.66 | |
| LT1121CS8-5 | SO-8 | C | $2.00 | $1.60 |
| LT1121CS8-5#PBF | SO-8 | C | $2.00 | $1.60 |
| LT1121CS8-5#TR | SO-8 | C | $1.66 | |
| LT1121CS8-5#TRPBF | SO-8 | C | $1.66 | |
| LT1121CS8#PBF | SO-8 | C | $2.00 | $1.60 |
| LT1121CS8#TR | SO-8 | C | $1.66 | |
| LT1121CS8#TRPBF | SO-8 | C | $1.66 | |
| LT1121CST-3.3 | SOT-223 | C | $2.17 | $1.70 |
| LT1121CST-3.3#PBF | SOT-223 | C | $2.17 | $1.70 |
| LT1121CST-3.3#TR | SOT-223 | C | $1.76 | |
| LT1121CST-3.3#TRPBF | SOT-223 | C | $1.76 | |
| LT1121CST-5 | SOT-223 | C | $2.17 | $1.70 |
| LT1121CST-5#PBF | SOT-223 | C | $2.17 | $1.70 |
| LT1121CST-5#TR | SOT-223 | C | $1.76 | |
| LT1121CST-5#TRPBF | SOT-223 | C | $1.76 | |
| LT1121CZ-3.3 | TO-92 | C | $1.58 | $1.30 |
| LT1121CZ-3.3#PBF | TO-92 | C | $1.58 | $1.30 |
| LT1121CZ-3.3#TR | TO-92 | C | $1.36 | |
| LT1121CZ-3.3#TRPBF | TO-92 | C | $1.36 | |
| LT1121CZ-5 | TO-92 | C | $1.58 | $1.30 |
| LT1121CZ-5#PBF | TO-92 | C | $1.58 | $1.30 |
| LT1121CZ-5#TR | TO-92 | C | $1.36 | |
| LT1121CZ-5#TRPBF | TO-92 | C | $1.36 | |
| LT1121HVCS8 | SO-8 | C | $2.25 | $1.90 |
| LT1121HVCS8#PBF | SO-8 | C | $2.25 | $1.90 |
| LT1121HVCS8#TR | SO-8 | C | $1.96 | |
| LT1121HVCS8#TRPBF | SO-8 | C | $1.96 | |
| LT1121HVIS8 | SO-8 | I | $2.78 | $2.35 |
| LT1121HVIS8#PBF | SO-8 | I | $2.78 | $2.35 |
| LT1121HVIS8#TR | SO-8 | I | $2.41 | |
| LT1121HVIS8#TRPBF | SO-8 | I | $2.41 | |
| LT1121IN8 | N-8 | I | $2.17 | $1.80 |
| LT1121IN8-3.3 | N-8 | I | $2.17 | $1.80 |
| LT1121IN8-3.3#PBF | N-8 | I | $2.17 | $1.80 |
| LT1121IN8-5 | N-8 | I | $2.17 | $1.80 |
| LT1121IN8-5#PBF | N-8 | I | $2.17 | $1.80 |
| LT1121IN8#PBF | N-8 | I | $2.17 | $1.80 |
| LT1121IS8 | SO-8 | I | $2.42 | $1.95 |
| LT1121IS8-3.3 | SO-8 | I | $2.42 | $1.95 |
| LT1121IS8-3.3#PBF | SO-8 | I | $2.42 | $1.95 |
| LT1121IS8-3.3#TR | SO-8 | I | $2.01 | |
| LT1121IS8-3.3#TRPBF | SO-8 | I | $2.01 | |
| LT1121IS8-5 | SO-8 | I | $2.42 | $1.95 |
| LT1121IS8-5#PBF | SO-8 | I | $2.42 | $1.95 |
| LT1121IS8-5#TR | SO-8 | I | $2.01 | |
| LT1121IS8-5#TRPBF | SO-8 | I | $2.01 | |
| LT1121IS8#PBF | SO-8 | I | $2.42 | $1.95 |
| LT1121IS8#TR | SO-8 | I | $2.01 | |
| LT1121IS8#TRPBF | SO-8 | I | $2.01 | |
| LT1121IST-3.3 | SOT-223 | I | $2.58 | $2.05 |
| LT1121IST-3.3#PBF | SOT-223 | I | $2.58 | $2.05 |
| LT1121IST-3.3#TR | SOT-223 | I | $2.11 | |
| LT1121IST-3.3#TRPBF | SOT-223 | I | $2.11 | |
| LT1121IST-5 | SOT-223 | I | $2.58 | $2.05 |
| LT1121IST-5#PBF | SOT-223 | I | $2.58 | $2.05 |
| LT1121IST-5#TR | SOT-223 | I | $2.11 | |
| LT1121IST-5#TRPBF | SOT-223 | I | $2.11 | |
| LT1121IZ-3.3 | TO-92 | I | $1.92 | $1.55 |
| LT1121IZ-3.3#PBF | TO-92 | I | $1.92 | $1.55 |
| LT1121IZ-3.3#TR | TO-92 | I | $1.61 | |
| LT1121IZ-3.3#TRPBF | TO-92 | I | $1.61 | |
| LT1121IZ-5 | TO-92 | I | $1.92 | $1.55 |
| LT1121IZ-5#PBF | TO-92 | I | $1.92 | $1.55 |
| LT1121IZ-5#TR | TO-92 | I | $1.61 | |
| LT1121IZ-5#TRPBF | TO-92 | I | $1.61 |
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