AAT3190
Positive/Negative Charge Pump for Voltage Bias
Typical Characteristics
Output Ripple
(VPOS = 12.3V; IPOS = 5mA; VNEG = 7.2V; INEG = 10mA)
VPOS
(10mV/div)
VNEG
(10mV/div)
Time (500ns/div)
Positive Output Voltage vs. Load Current
(T = 85°C)
12.4
VIN = 5.0V
12.2
12
11.8
11.6
11.4
0
10
20
30
40
IPOS (mA)
Negative Output Voltage vs. Load Current
(T = 85°C)
-6.5
VIN = 5.0V
-6.75
-7
-7.25
-7.5
-7.75
-8
0
10
20
30
40
INEG (mA)
AAT3190 Reference Under-Voltage Threshold
(120µF capacitor placed across REF to limit rate of rise
of REF for test purposes only)
SHDN
(2V/div)
0.5V
REF
(0.2V/div)
DRVN
(2V/div)
Time (500ns/div)
3190.2006.01.1.2
7