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 Zener diodes with a 0.2-Ω 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.
The LM236-2.5, LM336-2.5, and LM336B-2.5 are precision 2.5‑V shunt reference diodes that can be used as low‑temperature‑coefficient voltage references for digital voltmeters, power supplies, and op‑amp circuitry. They operate as shunt regulators and can be trimmed for minimum temperature drift.
The document includes electrical characteristics, absolute maximum ratings, recommended operating conditions, ordering and packaging details, mechanical drawings, and an important notice about product availability and warranty. Ordering options cover SOIC and TO‑92 packages with various tape‑and‑reel or bulk quantities.
| Dynamic Impedance | 0.27 Ω |
|---|---|
| Operating Temperature Range (LM236‑2.5) | -25 °C to 85 °C |
The LM236‑2.5 is specified to operate from –25 °C to 85 °C.