LM336-2.5

www.fairchildsemi.com LM336-2.5/LM336B-2.5 Programmable Shunt Regulator Features Low Temperature Coefficient Guaranteed Temperature Stability 4mV Typical 0.2Ω Dynamic Impedance ±1.0% Initial Tolerance Available Easily Trimmed for Minimum Temperature Drift Description The LM336-2.5/LM336B-2.5 integrated circuits are precision 2.5V shunt regulators. The monolithic IC voltage reference operates as a low temperature coefficient 2.5V zener with 0.2W dynamic impedance. A third terminal on the LM336-2.5/LM336B-2.5 allows the reference voltage and temperature coefficient to be trimmed easily. LM3362.5/LM336B-2.5 are useful as a precision 2.5V low voltage reference for digital voltmeters, power supplies or OP-AMP circuitry. The 2.5V makes it convenient to obtain a stable reference from low voltage supplies. Further, since the LM336-2.5/LM336B-2.5 operate as shunt regulators, they can be used as either a positive or negative voltage reference. TO-92 1 1. Adj 2. + 3. - Internal Block Diagram 2 + R1 Q9 R5 Q8 C2 R4 Q7 C1 Q16 R8 Q2 Q10 Q11 Q15 R9 Q4 Q1 Q3 Q5 Q6 Q12 Q14 Q18 R10 R6 R7 Q17 1 ADJUST Q13 R2 R3 3 _ Rev. 1.0.1 ©2002 Fairchild Semiconductor Corporation LM336-2.5/LM336B-2.5 Absolute Maximum Ratings Parameter Reverse Current Forward Current Operating Temperature Range LM336-2.5/LM336B-2.5 Storage Temperature Range Symbol IR IF TOPR TSTG Value 15 10 0 ~ +70 - 60 ~ +150 Unit mA mA °C °C Electrical Characteristics (0°C < TA < +70°C, unless otherwise specified) ...