TYPICAL PERFORMANCE CHARACTERISTICS
VS
RS IQ + IL
VR
IL
VOUT
IQ
1M
2+
7
6
LM4250C
3_
8
4
22M
VIN = 15V
10V
150pF 3.5M
IQ
SPX4040
Figure 11. SPX4040 Fixed Shunt Regulator Application
SPX4040-2.5
1.17M
IQ ≅ 2µA standby current
Figure 12. Micropower 10V Reference
*
IOUT
=
5.0V
R2
30V
SPX4040-2.5
R1
100k
IOUT*
2.5V to 27V
2–
7
LM312
3
+
4
C1
150pF
6
R2
Figure 13. Precision 1µA to mA Current Source
VIN = 3.3V to 30V
LM334
4.3k
2.5V
SPX4040-2.5
3.0V
3k
2.5V
SPX4040-2.5
Figure 14. Reference from 3.0V Battery
Figure 15. Wide Input Range Reference
Date: 1/19/05
SPX4040 Micropower 2.5V Shunt Voltage Reference
5
© Copyright 2005 Sipex Corporation