TLV431_10 Datasheet, PDF (15/36 Pages) Texas Instruments – LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR

TLV431, TLV431A, TLV431B
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139T − JULY 1996 − REVISED JUNE 2007
PARAMETER MEASUREMENT INFORMATION
SMALL-SIGNAL VOLTAGE GAIN/PHASE MARGIN
vs
FREQUENCY
80
0°
I_K = 10 mA
70
T_A = 25°C
36°
60
72°
50
108°
40
144°
30
180°
20
10
0
− 10
− 20
100
1k
10k
100k
1M
f − Frequency − Hz
Figure 13
6.8 kΩ
10 µF
4.3 kΩ
Output
I_K
180 Ω
5V
GND
TEST CIRCUIT FOR VOLTAGE GAIN
AND PHASE MARGIN
REFERENCE IMPEDANCE
vs
FREQUENCY
100
I_K = 0.1 mA to 15 mA
T_A = 25°C
10
100 Ω
Output
I_K
1
100 Ω
−
+
0.1
GND
0.01
1k
10k
100k
1M
f − Frequency − Hz
10M
Figure 14
TEST CIRCUIT FOR REFERENCE IMPEDANCE
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