LM2931-N
- Very Low Quiescent Current
- Output Current in Excess of 100 mA
- Input-output Differential Less than 0.6V
- Reverse Battery Protection
- 60V Load Dump Protection
- −50V Reverse Transient Protection
- Short Circuit Protection
- Internal Thermal Overload Protection
- Mirror-image Insertion Protection
- Available in TO-220, TO-92, TO-263, or SOIC-8 Packages
- Available as Adjustable with TTL Compatible Switch
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The LM2931-N positive voltage regulator features a very low quiescent current of 1mA or less when supplying 10mA loads. This unique characteristic and the extremely low input-output differential required for proper regulation (0.2V for output currents of 10mA) make the LM2931-N the ideal regulator for standby power systems. Applications include memory standby circuits, CMOS and other low power processor power supplies as well as systems demanding as much as 100mA of output current.
Designed originally for automotive applications, the LM2931-N and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients, such as a load dump (60V) when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The LM2931-N cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.
The LM2931-N family includes a fixed 5V output (±3.8% tolerance for A grade) or an adjustable output with ON/OFF pin. Both versions are available in a TO-220 power package, DDPAK/TO-263 surface mount package, and an 8-lead SOIC package. The fixed output version is also available in the TO-92 plastic package.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LM2931 Series Low Dropout Regulators 数据表 (Rev. G) | 2013-4-3 | |||
| 应用手册 | AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) | 2013-5-6 | ||||
| 应用手册 | High-Efficiency Reg has Low Drop-Out Voltage (Rev. B) | 2013-4-23 | ||||
| 应用手册 | TO-92 Packing Options / Ordering Instructions (Rev. A) | 2010-6-23 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| TO-220 (KC) | 5 | Ultra Librarian |
| TO-263 (KTT) | 3 | Ultra Librarian |
| TO-220 (NDE) | 3 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |
| TO-263 (KTT) | 5 | Ultra Librarian |
订购和质量
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