Fairchild Semiconductor LM336Z25
The LM336Z25 integrated circuit is a precision 2.5 V shunt regulator. The monolithic IC voltage reference operates as a low temperature coefficient 2.5 V Zener with 0.2 Ω dynamic impedance. LM336Z25 is useful as a precision 2.5 V low-voltage reference for digital voltmeters, power supplies, or OP-AMP circuitry.FEATURES
● Low-Temperature Coefficient● Guaranteed Temperature Stability: 4 mV (Typical)
● 0.2 Ω Dynamic Impedance
● 1.0% Initial Tolerance Available
● Easily Trimmed for Minimum Temperature Drift
DESCRIPTION
A third terminal on the LM336Z25 allows the reference voltage and temperature coefficient to be trimmed. The 2.5 V makes it convenient to obtain a stable reference from low-voltage supplies. Further, since the LM336Z25 operates as a shunt regulator, it can be used as either a positive or negative voltage reference. TO-92 1 1. Adj 2.+ 3. - Ordering Information Part Number LM336Z25 LM336Z25X Operating Temperature Range 0 ~ +70°C Top Mark LM336Z25 LM336Z25 Package TO-92 TO-92 Packing Method Bulk Tape and Reel © 1999 Fairchild Semiconductor Corporation LM336Z25 Rev. 1.1.0 1 LM336Z25 — Programmable Shunt Regulator Block Diagram + Adj - Schematic Diagram Figure1. Block Diagram 2+ R1 Q9 C2 R4 Q7 Q8 C1 Q2 Q10 Q11 Q4 Q6 Q12 Q1 Q13 Q3 Q5 R2 Q17 R5 R6 R7 Q16 R8 Q15 R9 R10 Q14 Q18 1 Adj R3 3_ Figure 2.