0.2鈩?/div>
D
ynamic Impedance
鹵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. LM336-
2.5/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
漏2002 Fairchild Semiconductor Corporation