AAT1189 Datasheet, PDF (7/19 Pages) Advanced Analogic Technologies – High Voltage Step-Down Regulator

Typical Characteristics
Step-Down Converter Load Transient Response
(I_OUT = 1.25A to 2.5A; V_IN = 12V; V_OUT = 3.3V; C_OUT = 2x22µF)
3.0
2.5
2.5A
2.0
1.25A
1.5
1.0
3.4
3.3
3.2
Time (100µs/div)
Step-Down Converter Load Transient Response
(I_OUT = 0.25A to 2.5A; V_IN = 12V; V_OUT = 3.3V; C_OUT = 2x22µF)
3.0
2.5A
2.0
1.0
0.25A
0.0
3.5
3.4
3.3
3.2
Time (100µs/div)
Step-Down Converter Line Transient Response
(V_IN = 6V to 10V; V_OUT = 3.3V; I_OUT = 2.5A)
15
10
5
0
3.35
3.30
3.25
Time (100ms/div)
DATA SHEET
AAT1189
High Voltage Step-Down Regulator
Step-Down Converter Load Transient Response
(I_OUT = 1.25A to 2.5A; V_IN = 12V; V_OUT = 5V; C_OUT = 2x22µF)
3.0
1.25A
2.5
2.5A
2.0
1.5
1.0
5.1
5.0
4.9
Time (100µs/div)
Step-Down Converter Load Transient Response
(I_OUT = 0.25A to 2.5A; V_IN = 12V; V_OUT = 5V; C_OUT = 2x22µF)
3.0
2.5A
2.0
1.0
0.25A
0.0
5.2
5.1
5.0
4.9
4.8
Time (100µs/div)
Step-Down Converter Line Transient Response
(V_IN = 6V to 10V; V_OUT = 5V; I_OUT = 2.5A)
15
10
5
0
5.2
5.0
4.8
Time (100ms/div)
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