AAT3190
Positive/Negative Charge Pump for Voltage Bias
VIN
A3
A4
BAT54SDW
C8
BAT54SDW
0.1µF
C9
0.1µF
R5
R3
U1
205K
1
2
3
4
5
6
12
11
10
9
56.2k
VIN DRVP
C7
C21
0.1µF
C20
1µF
FBN GND
REF GND
1µF
C10
0.1µF
VOP
R2
EN
GND
24.1k
8
C19
FBP GND
N/C DRVN
C1
1µF
VON
4.7µF
7
C2
0.1µF
R1
139k
R4
AAT3190ITP
C22
6.02k
1µF
GND
EN
GND
C19, C20, C21, C22 Murata GRM39X5R105K16 1µF 16V X5R 0603
C7, C8, C9, C10 Taiyo Yuden EMK107BJ104MA 0.1µF 16V X7R 0603
C1 Taiyo Yuden JMK212BJ475MG 4.7µF 6.3V X5R 0805
Figure 3: AAT3190 Evaluation Board Schematic (shown with two stages)
VOP = 12V, VON = -7V.
Figure 4: AAT3190 Evaluation Board Top Side.
Figure 5: AAT3190 Evaluation Board Bottom Side.
3190.2006.01.1.2
13
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