PRODUCT DATASHEET
AAT2861
TM
ChargePump
Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
OUT
C4
4.7µF
DC+
IN
C1
1.0µF
R5
0
DF1
D7
DF2
C2
1.0µF
U1
24
23
22
21
20
AAT2861-X
D2 D1
D3
D5 D4
D6
C1+ IN C1- C2- PGND
1
2
3
4
5
6
7
19
18
17
16
15
14
13
OUT
FL1
C8
C2+
BL7/FL2
BL6
2.2µF
EN/SET
FL_EN
EN_LDOA
EN_LDOB/C
AGND
BL5
BL4
FLASH
BL3
5
4 1
3 2
BL2
R4
10K
DC+
LDOC IN
LDOB LDOA BL1
8
9
10
11
12
C3
2.2µF
C6
2.2µF
C5
4.7µF
C7
2.2µF
DC+
R7
10K
DC+
R1 R2 R3
1K 1K 1K
U3
R6
1
2
3
4
8
7
6
5
5
SW1
SW2
SW3
VDD
VSS
GP0
GP1
GP2
C9
1µF
330
4
3
1
2
GP5
GP4
GP3
LED7
RED
5
5
4
3
1
2
PIC12F675
4
3
1
2
Figure 2: AAT2861 Evaluation Board Schematic.
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2861.2009.02.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
