AAT1184 Datasheet, PDF (7/19 Pages) Advanced Analogic Technologies – High Voltage Step-Down Regulator

SwitchReg^TM
Typical Characteristics
Step-Down Converter Load Transient Response
(I_OUT = 0.6A to 1.2A; V_IN = 12V; V_OUT = 3.3V; C_OUT = 2x22µF)
1.5
1.2A
1.0
0.6A
0.5
0.0
3.5
3.4
3.3
3.2
3.1
Time (100µs/div)
Step-Down Converter Load Transient Response
(I_OUT = 0.6A to 1.2A; V_IN = 12V; V_OUT = 3.3V; C_OUT = 2x22µF)
1.5
1.2A
1.0
0.9A
0.5
0.0
3.5
3.4
3.3
3.2
3.1
Time (100µs/div)
Step-Down Converter Line Transient Response
(V_IN = 6V to 10V; V_OUT = 3.3V; I_OUT = 1.2A)
15
10
5
0
3.35
3.30
3.25
Time (100ms/div)
PRODUCT DATASHEET
AAT1184
High Voltage Step-Down Regulator
Step-Down Converter Load Transient Response
(I_OUT = 0.6A to 1.2A; V_IN = 12V; V_OUT = 5V; C_OUT = 2x22µF)
1.5
1.2A
1.0
0.6A
0.5
0.0
5.1
5.0
4.9
Time (100µs/div)
Step-Down Converter Load Transient Response
(I_OUT = 0.9A to 1.2A; V_IN = 12V; V_OUT = 5V; C_OUT = 2x22µF)
1.5
1.2A
1.0
0.9A
0.5
0.0
-0.5
5.1
5.0
4.9
Time (100µs/div)
Step-Down Converter Line Transient Response
(V_IN = 6V to 10V; V_OUT = 5V; I_OUT = 1.2A)
15
10
5
0
5.2
5.0
4.8
4.6
Time (100ms/div)
1184.2008.07.1.0
www.analogictech.com
7