APW7137 Ver la hoja de datos (PDF) - Anpec Electronics
Número de pieza
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Fabricante
APW7137 Datasheet PDF : 18 Pages
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APW7137
Typical Application Circuits
Fig 1. Typical 5V to 12V Supply
VIN
L1
5V
C1
4.7µF
10µH
5 VIN
LX 1
ON
OFF
2 GND
APW7137
4 EN
FB 3
Fig 2. Standard 3.3V to 5V Supply
VIN
L1
3.3V
C1
4.7µF
4.7µH
5 VIN
LX 1
ON
OFF
2 GND
APW7137
4 EN
FB 3
R1
1.2MΩ
VOUT
12V
C2
4.7µF
R2
137kΩ
R1
430kΩ
VOUT
5V
C2
10µF
R2
140kΩ
Fig 3. Brightness control using a PWM signal apply to EN
VIN
C1
4.7µF
100Hz~300Hz
Duty=100%, ILED=20mA
Duty=0%, LED off
L1
22µH
5 VIN
LX 1
2 GND
APW7137
4 EN
FB 3
VOUT
C2
1µF Up to 8
WLEDs
R1
62Ω
Fig 4. Multiple Output for TFT-LCD Power Supply
+13V
C6
0.47µF
+9V
C5
0.1µF
C3
C9
0.1µF
C7
C4
0.47µF
0.1µF
0.1µF
VIN
C1
4.7µF
ON
OFF
L1
4.7µH
5 VIN
LX 1
2 GND
APW7137
4 EN
FB 3
R1
430kΩ
C2
10µF
R2
140kΩ
C8
0.47µF
-8V
C10
0.47µF
-4V
VOUT
5V
Copyright © ANPEC Electronics Corp.
11
Rev. A.4 - Oct., 2008
www.anpec.com.tw
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