All trademarks are the property of their respective owners.
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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM2931 Series Low Dropout Regulators datasheet (Rev. G) | 03 Apr 2013 | |
| Application note | AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B) | 06 May 2013 | ||
| Application note | High-Efficiency Reg has Low Drop-Out Voltage (Rev. B) | 23 Apr 2013 | ||
| Application note | TO-92 Packing Options / Ordering Instructions (Rev. A) | 23 Jun 2010 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| TO-220 (KC) | 5 | Ultra Librarian |
| TO-220 (NDE) | 3 | Ultra Librarian |
| TO-263 (KTT) | 3 | Ultra Librarian |
| TO-263 (KTT) | 5 | Ultra Librarian |
| TO-92 (LP) | 3 | Ultra Librarian |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.