Datasheet

MAX17014
Low-Cost Multiple-Output
Power Supply for LCD TVs
16 ______________________________________________________________________________________
LX2
REF
FB1
LX1
LX1
GND
COMP
V
IN
12V
OUT
3.3V
2A
AV
DD
16V
1.5A
FSEL
FB2
OUT
STEP-DOWN,
NEGATIVE CHARGE
PUMP ON/OFF
VL
V
IN
V
IN
GON
35V
50mA
OVIN
OGND
VL
REF
BST
GON
DRN
CTL
SWI
GON CONTROL
DRVN
FBN
REF
DRVP
FBP
SUP
CPGND
SRC
GND1
GND1
NEG2
OUT2
VCOM1
L1
4.7μH
C3
10μF
0.1μF
L2
2.6μH
C12
1μF
C13
0.1μF
C6
0.1μF
DEL2
DEL1
EN1
EN2
N.C.
NEG1
OUT1
SWI
SWO
SUI
POS1
C14
0.1μF
THR
POS2
DLP
MODE
C1
10μF
C2
10μF
D1
35
36
37
38
39
40
42
41
31
AV
DD
43
47
VCOM2
45
1
3
48
2
44
46
5
R9
1kΩ
7
SWI
8
13
9
SRC
12
C20
0.1μF
C21
0.1μF
C22
0.1μF
AV
DD
10
11
49
16
14
D3
IN2
IN2
26
25
C4
0.1μF
D2
LX2
22
23
24
20
21
27
30
28
4
17
15
29
18
33
32
6
19
STEP-UP, POSITIVE
CHARGE PUMP ON/OFF
GOFF
-6V
100mA
MAX17014
C7
1μF
C8
0.22μF
C9
0.1μF
C10
0.15μF
C11
0.15μF
C5
22μF
C23
1μF
C18
0.1μF
C17
330pF
R5
82kΩ
R7
13.3kΩ
R6
20kΩ
R8
2.2kΩ
R16
367kΩ
R17
13.3kΩ
R3
158kΩ
R4
13.3kΩ
R1
150kΩ
R2
23kΩ
D4
D5
EP
C19
0.1μF
C16
10μF
C15
10μF
C24
10μF
Figure 1. Typical Operating Circuit