The LM236-2.5, LM336-2.5, and LM336B-2.5 integrated circuits are precision 2.5-V shunt regulator diodes. These reference circuits operate as low-temperature-coefficient 2.5-V Zeners diodes with a 0.2-
dynamic impedance. A third terminal provided on the circuit allows the reference voltage and temperature coefficient to be trimmed easily.
The series is useful as precision 2.5-V low-voltage references (VZ) for digital voltmeters, power supplies, or operational-amplifier circuitry. The 2.5-V voltage reference makes it convenient to obtain a stable reference from 5-V logic supplies. Devices in this series operate as shunt regulators, and can be used as either positive or negative voltage references.
The LM236-2.5 is characterized for operation from –25°C to 85°C. The LM336-2.5 and LM336B-2.5 are characterized for operation from 0°C to 70°C.
| VO (V) | 2.49 |
| Initial accuracy (max) (%) | 4 |
| VO adj (min) (V) | 2.49 |
| VO adj (max) (V) | 2.49 |
| Iz for regulation (min) (µA) | 400 |
| Reference voltage (V) | Fixed |
| Rating | Catalog |
| Temp coeff (max) (ppm/°C) | 34 |
| Operating temperature range (°C) | 0 to 70 |
| Iout/Iz (max) (mA) | 10 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| TO-92 (LP) | 3 | 19.136 mm² 5.2 x 3.68 |
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