PRODUCT DATASHEET
AAT1184
TM
SwitchReg
High Voltage Step-Down Regulator
Typical Characteristics
Step-Down Converter Load Transient Response
Step-Down Converter Load Transient Response
(IOUT = 0.6A to 1.2A; VIN = 12V; VOUT = 3.3V; COUT = 2x22µF)
(IOUT = 0.6A to 1.2A; VIN = 12V; VOUT = 5V; COUT = 2x22µF)
1.5
1.5
1.2A
1.0
0.5
0.0
1.2A
1.0
0.5
0.0
0.6A
0.6A
3.5
3.4
3.3
3.2
3.1
5.1
5.0
4.9
Time (100µs/div)
Time (100µs/div)
Step-Down Converter Load Transient Response
Step-Down Converter Load Transient Response
(IOUT = 0.6A to 1.2A; VIN = 12V; VOUT = 3.3V; COUT = 2x22µF)
(IOUT = 0.9A to 1.2A; VIN = 12V; VOUT = 5V; COUT = 2x22µF)
1.5
1.5
1.2A
1.2A
1.0
0.5
1.0
0.5
0.9A
0.9A
0.0
0.0
3.5
3.4
3.3
3.2
3.1
-0.5
5.1
5.0
4.9
Time (100µs/div)
Time (100µs/div)
Step-Down Converter Line Transient Response
Step-Down Converter Line Transient Response
(VIN = 6V to 10V; VOUT = 3.3V; IOUT = 1.2A)
(VIN = 6V to 10V; VOUT = 5V; IOUT = 1.2A)
15
15
10
5
10
5
0
0
5.2
5.0
4.8
4.6
3.35
3.30
3.25
Time (100ms/div)
Time (100ms/div)
w w w . a n a l o g i c t e c h . c o m
1184.2008.07.1.0
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
