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LT1943EFE Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LT1943EFE
High Current Quad Output Regulator for TFT LCD Panels
Linear Technology
LT1943EFE Datasheet PDF : 20 Pages
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LT1943
U
OPERATIO
PLACE VIAS UNDER
GROUND PAD TO
GROUND PLANE FOR
GOOD THERMAL
CONDUCTIVITY
GND
V
LOGIC
AV
DD
V
IN
V
OFF
GND
1943 F05
Figure 5. Top Side PCB Layout
TYPICAL APPLICATIO S
V
OFF
–5.5V
50mA
2.2
µ
F
10V
X5R
10.0k
V
LOGIC
3.3V
2A
ZHCS400
8V to 20V Input, Quad Output TFT-LCD Power Supply
V
IN
8V TO 20V
10
µ
H
1
µ
F
25V
X5R
B240A
44.2k
ZHCS400
0.47
µ
F
16V
X5R
10pF
10
µ
H
CMDSH-3
0.22
µ
F
10V X5R
16.2k
4.7
µ
H
B230A
10.0k
22
µ
F
6.3V
X5R
18k
100pF
2.2nF
10
µ
F
25V
X5R
33
µ
H
SW4
NFB4
FB4
BIAS
BOOST
SW1
FB1
V
C1
V
IN
SW3
SW2
FB2
RUN-SS
SS-234
LT1943
C
T
PGOOD
V
ON
E3
FB3
GND
SGND
V
C2
V
C3
V
C4
6.8k
100pF
2.2nF
27k
100pF
680pF
10
µ
H
88.7k
10.0k
0.015
µ
F
0.015
µ
F
0.047
µ
F
PGOOD
274k
10.0k
13k
100pF
2.2nF
2.2
µ
F
50V
X5R
AV
DD
12.2V
500mA
10
µ
F
16V
X5R
V
ON
35V
30mA
0.47
µ
F
50V
X5R
1943 TA02
18
1943fa
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