Rainbow Electronics MAX1531 - Manual (Page 15)

MAX1530/MAX1531
Multiple-Output Power-Supply Controllers for
LCD Monitors
______________________________________________________________________________________ 15
MAX1530
N1-A
N1-B
V IN = 12V
VL
ONL2
ONL3
N.C.
N.C.
N.C.
N.C.
FREQ
SEQ
RESET
EN IN
BST
DH
LX
DL
PGND
DRV1
FBL1
FB
COMP
DRV3
FBL3
ILIM
FBL2
DRV2
RSTIN
30
28
26
25
12
16
17
5
6
7
8
N.C.
N.C.
N.C.
N.C.
9
10
19
18
1
2
15
4
3
13
14
11
31
32
20
21
22
23
27
24
29
AGND
C3
4.7 µF
25V
R4
20.0k Ω
1%
D1
C1
1
µF
C5
0.1 µF
C4
1 µF
C10
470pF
C9
10
µF
6.3V
C7
22
µF
6.3V
C22
2.2
µF
R11
100k Ω
R9
10k Ω
1%
R8
6.8k Ω
R10
10k
Ω
1%
R14
121k Ω
1%
R17
6.8k Ω
R18
68.1k Ω
1%
R19
10k
Ω
1%
C11
0.1 µF
C20
0.1 µF
C12
0.47
µF
R22
75k Ω
1%
R23
10.7k Ω
1%
C13
4.7
µF
C21
2.2
µF
Q4
R24
6.8k Ω
R13
150k
Ω
R12
300k
Ω
R2
10.7k
Ω
1%
R1
17.8k
Ω
1%
L1
10 µH
R7
100k Ω
R3
124k
Ω
1%
R12
1 Ω
C2, OPEN
Q2
Q1
VL
V IN
V OUT
3.3V/1.5A
V L
5V/30mA
V LOGIC
2.5V/500mA
V SOURCE
10V/500mA
V GAMMA
9.7V/50mA
IN
V IN
*
OPTIONAL
R5*
10 Ω
R6*
10 Ω
D2*
C23
150pF
Figure 2. MAX1530 Standard Application Circuit