The LM136-2.5-N/LM236-2.5-N and LM336-2.5-N integrated circuits are precision 2.5V shunt regulator diodes. These monolithic IC voltage references operate as a low-temperature-coefficient 2.5V zener with 0.2Ω dynamic impedance. A third terminal on the LM136-2.5-N allows the reference voltage and temperature coefficient to be trimmed easily.
The LM136-2.5-N series is useful as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp circuitry. The 2.5V make it convenient to obtain a stable reference from 5V logic supplies. Further, since the LM136-2.5-N operates as a shunt regulator, it can be used as either a positive or negative voltage reference.
The LM136-2.5-N is rated for operation over −55°C to +125°C while the LM236-2.5-N is rated over a −25°C to +85°C temperature range.
The LM336-2.5-N is rated for operation over a 0°C to +70°C temperature range. See the connection diagrams for available packages.
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| VO (V) | 2.5 |
| Initial accuracy (max) (%) | 1 |
| VO adj (min) (V) | 2.5 |
| VO adj (max) (V) | 2.5 |
| Iz for regulation (min) (µA) | 400 |
| Reference voltage (V) | Fixed |
| Rating | Military |
| Temp coeff (max) (ppm/°C) | 20 |
| Operating temperature range (°C) | -55 to 125 |
| Iout/Iz (max) (mA) | 10 |
| TO-CAN (NDV) | 3 | 34.8704 mm² 6.41 x 5.44 |