AT1780
Preliminary Product Information
640kHz/1.2MHz,Low-Noise Step-Up
Current-Mode PWM Controller
Typical Application Circuit
Vin
2.6V to 5.5V
Cin
L1
D1
Vout
Cout
Aimtron
VIN
/SHDN
COMP
GND
R1
Cout
AT1780
LX
FB
FLSC
SS
5
2
7
8
6
3
C1
0.1UF
1
4
R2
Rcomp
Css
Ccomp1
Ccomp
Figure 1.Typical application circuit
Vin
3.0V to 3.6V
4.7UH
CRS01
VAA
10V/150mA
10UF
332K
10UF
22UF
6
3
Aimtron
VIN
/SHDN
COMP
GND
AT1780
LX
FB
FLSC
SS
5
2
7
8
47K
D2
0.1UF
0.1UF
D5
D3
D4
VGH
30V/5mA
1UF
C1
0.1UF
1
4
30K
18PF
470PF
0.033UF
1UF
0.1UF
D7
VGL
-10V/10mA
4.7UF
D6
Figure 2.TFT panel power supply application circuit
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
3/24/06 REV 1.1
Email:
service@aimtron.com.tw
7
AIMTRON [ AIMTRON TECHNOLOGY ]
