AAT3190
Positive/Negative Charge Pump for Voltage Bias
Typical Characteristics
Positive Output Efficiency vs. Load Current
(VIN = 5.0V)
Negative Output Efficiency vs. Load Current
(VIN = 5.0V)
80
80
25°C
VPOS = 12.3V
85°C
70
70
85°C
25°C
60
50
40
30
20
60
50
40
30
VNEG = -7.3V
20
0
10
20
30
40
0
10
20
30
40
IPOS (mA)
INEG (mA)
VPOS Load Transient
VNEG Load Transient
250
200
150
100
50
20
250
20
10
200
150
100
50
10
0
0
-10
-20
-30
-40
-50
-60
-10
-20
-30
-40
-50
-60
0
0
-50
-50
-100
-150
-100
-150
50µµs/div
50µµs/div
AAT 3190 Power-Up Sequence
AAT3190-1 Power-Up Sequence
20
4
20
16
12
8
4
Enable
Enable
16
12
8
2
2
0
0
-2
-4
-6
-8
-10
-12
-2
-4
-6
-8
VPOS
VPOS
4
4
0
0
VNEG
VNEG
-4
-8
-12
-4
-8
-12
-10
-12
500µsec/div
500µsec/div
6
3190.2005.03.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
