The LM136-2.5/LM236-2.5 and LM336-2.5 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 allows the reference voltage and temperature coefficient to be trimmed easily.
The LM136-2.5 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 operates as a shunt regulator, it can be used as either a positive or negative voltage reference.
The LM136-2.5 is rated for operation over –55°C to +125°C while the LM236-2.5 is rated over a –25°C to +85°C temperature range.
The LM336-2.5 is rated for operation over a 0°C to +70°C temperature range. See the connection diagrams for available packages.
| Part number | Order | Reference voltage | VO (V) | VO adj (Min) (V) | VO adj (Max) (V) | Initial accuracy (Max) (%) | Temp coeff (Max) (ppm/ degree C) | Rating | Operating temperature range (C) | Iz for regulation (Min) (uA) | Iout/Iz (Max) (mA) | Package Group |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LM336-2.5-N |
|
Fixed | 2.5 | 2.5 | 2.5 |
4
2 |
20 | Catalog | 0 to 70 | 400 | 10 |
SOIC | 8
TO-92 | 3 |
| LM136-2.5-N | Samples not available | Fixed | 2.5 | 2.5 | 2.5 | 1 | 20 | Catalog |
-25 to 85
-40 to 125 -55 to 125 |
400 | 10 | TO | 3 |
