DATA SHEET
AAT2822/2823/2824/2825
TFT-LCD DC/DC Converter with WLED Driver and VCOM Buffer
Typical Characteristics
Oscillator Frequency vs. Temperature
Power Up Sequencing
(VAVDD→VGH→VGL; VIN = 5.0V)
1.285
1.280
1.275
1.270
1.265
1.260
1.255
1.250
1.245
1.240
1.235
EN/SET
(5V/div)
VAVDD
(5V/div)
VGH
(20V/div)
VGL
(20V/div)
-40
-15
10
35
60
85
Temperature (°C)
Time (500µs/div)
Power Up Sequencing
Main Boost Efficiency
(VAVDD->VGL->VGH; VIN = 5.0V)
(VOUT = 12V)
100
90
80
70
60
50
40
30
20
10
EN/SET
(2V/div)
VAVDD
(2V/div)
VGH
(10V/div)
VGL
(10V/div)
0
0
50
100
150 200
250 300
350 400
450 500
Output Current (mA)
Time (1ms/div)
Main Boost Load Transient
Line Regulation
(VIN = 5.0V)
12.25
12.20
12.15
12.10
12.05
12.00
11.95
11.90
11.85
11.80
VOUT
(100mV/div)
100mA
10mA
IOUT
(50mA/div)
IOUT = 1mA
OUT = 10mA
I
IOUT = 100mA
11.75
2.7
3.2
3.7
4.2
4.7 5.2
Input Voltage (V)
Time (500µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
8
202081B
• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 2, 2012
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
