at1780 Aimtron Technology, at1780 Datasheet - Page 7

• Manufacturer Part Number: at1780
• Description: 640khz/1.2mhz,low-noise Step-up Current-mode Pwm Controller
• Manufacturer: Aimtron Technology

Typical Application Circuit
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] Fax: [phone]
3/24/06 REV 1.1
Vin
3.0V to 3.6V
C1
0.1UF
470PF
30K
22UF
Vin
2.6V to 5.5V
C1
0.1UF
Ccomp
Rcomp
18PF
Cin
6
3
1
4
Aimtron
Figure 2.TFT panel power supply application circuit
VIN
/SHDN
COMP
GND
Ccomp1
4.7UH
AT1780
Figure 1.Typical application circuit
6
3
1
4
FLSC
0.033UF
LX
FB
SS
Aimtron
VIN
/SHDN
COMP
GND
5
2
7
8
L1
AT1780
FLSC
LX
7
FB
SS
CRS01
0.1UF
Css
0.1UF
640kHz/1.2MHz,Low-Noise Step-Up
Preliminary Product Information
5
2
7
8
D2
D6
Current-Mode PWM Controller
D3
D7
10UF
0.1UF
D1
WWW:
Email:
1UF
4.7UF
332K
47K
Cout
http://www.aimtron.com.tw
[e-mail]
D4
VGL
-10V/10mA
10UF
R1
R2
D5
VAA
10V/150mA
Cout
AT1780
Vout
1UF
VGH
30V/5mA