DATA SHEET
AAT2822/2823/2824/2825
TFT-LCD DC/DC Converter with WLED Driver and VCOM Buffer
Typical Characteristics
VGH vs. Temperature
Positive Output Voltage (V)
30.5
30.4
30.3
30.2
30.5
30.4
30.3
30.2
30.1
30.0
29.9
29.8
29.7
29.6
29.5
0
2
4
6
8
10
12
14
16
18
20
VGH Load Regulation
5.0V
2.7V
VGH (V)
30.1
30.0
29.9
29.8
29.7
29.6
29.5
-40
-15
10
35
60
85
Temperature (°C)
Load Current (mA)
VGL vs. Temperature
Negative Output Voltage (V)
-29.50
-29.60
-29.70
-29.80
-29.5
-29.6
-29.7
-29.8
-29.9
-30.0
-30.1
-30.2
-30.3
-30.4
-30.5
0
2
VGL Load Regulation
VGL (V)
-29.90
-30.00
-30.10
-30.20
-30.30
-30.40
-30.50
-40
-15
10
35
60
85
5.0V
2.7V
4
6
8
10
12
14
16
18
20
Temperature (°C)
Load Current (mA)
WLED Efficiency vs. Load Current
(7S3P; V
IN
= 5V; V
L
= 12V)
90
80
WLED Operation at 300mA Load
(V
IN
= 5.0V, 3S13P)
Efficiency (%)
70
60
50
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
V
LED
(5V/div)
V
OUT
(100mV/div)
I
LED
(500mA/div)
Load Current (mA)
Time (200µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202081B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 2, 2012
9
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
