 English |
|
|
|
|
|
|
|
| AAT1145 Datasheet, PDF (6/16 Pages) Advanced Analogic Technologies – 1.2A Step-Down Converter | |||
| |||
| ◁ |
SwitchRegTM
Typical Characteristics
Output Voltage vs. Output Current
(VOUT = 1.5V; TA = 25°C; L = 2.2µH)
1.55
1.54
1.53
1.52
1.51
VIN = 5.0V
VIN = 4.2V
1.5
1.49
1.48
1.47
1.46
1.45
0
VIN = 2.5V
VIN = 3.6V
200
400
600
800
1000
1200
Output Current (mA)
Input Current vs. Input Voltage
(VOUT = 3.3V; L = 2.2µH)
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4
Input Voltage (V)
Start-Up Response
(VOUT = 1.8V; VIN = 3.6V; No Load;
CIN = 10µF; COUT = 22µF; L = 2.2µH)
VENABLE
(2V/div)
VOUT
(1V/div)
Time (1ms/div)
PRODUCT DATASHEET
AAT1145
1.2A Step-Down Converter
Output Voltage vs. Output Current
(VOUT = 1.2V; TA = 25°C; L = 2.2µH)
1.230
1.220
1.210
1.200
VIN = 5.0V
VIN = 3.6V
1.190
1.180
VIN = 2.5V VIN = 4.2V
1.170
1.160
0
200
400
600
800
1000
1200
Output Current (mA)
Load Transient Response
(VOUT = 1.8V, AC Coupled; VIN = 3.6V;
150mA to 1.2A; L = 2.2µH)
VOUT
(100mV/div)
IOUT
(500mA/div)
1.2A
150mA
Time (40µs/div)
VENABLE
(2V/div)
VOUT
(1V/div)
IIN
(500mA/div)
Start-Up Response
(VOUT = 1.8V; VIN = 3.6V; ILOAD = 1.2A;
CIN = 10µF; COUT = 22µF; L = 2.2µH)
Time (1ms/div)
6
www.analogictech.com
1145.2007.11.1.1
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese