AAT1184 Datasheet, PDF (6/19 Pages) Advanced Analogic Technologies – High Voltage Step-Down Regulator

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Typical Characteristics
Step-Down Converter Output Ripple
(V_IN = 12V; V_OUT = 3.3V; I_OUT = 1mA)
12V
0V
0.2
0.1
0.0
3.31
3.30
3.29
Time (2µs/div)
Step-Down Converter Output Ripple
(V_IN = 12V; V_OUT = 3.3V; I_OUT = 1.2A)
12V
0V
2
1
0
3.31
3.30
3.29
Time (1µs/div)
Step-Down Converter Load Transient Response
(I_OUT = 0.12A to 1.2A; V_IN = 12V; V_OUT = 3.3V; C_OUT = 2x22µF)
1.5
1.2A
1.0
0.5
0.12A
0.0
3.7
3.5
3.3
3.1
2.9
Time (100µs/div)
PRODUCT DATASHEET
AAT1184
High Voltage Step-Down Regulator
Step-Down Converter Output Ripple
(V_IN = 12V; V_OUT = 5V; I_OUT = 1mA)
12V
0V
0.2
0.1
0.0
5.02
5.00
4.98
Time (2µs/div)
Step-Down Converter Output Ripple
(V_IN = 12V; V_OUT = 5V; I_OUT = 1.2mA)
5.0
12V
4.0
0V
3.0
2.0
1.0
0.0
5.02
5.00
4.98
Time (1µs/div)
Step-Down Converter Load Transient Response
(I_OUT = 0.12A to 1.2A; V_IN = 12V; V_OUT = 5V; C_OUT = 2x22µF)
1.5
1.2A
1.0
0.5
0.12A
0.0
5.2
5.0
4.8
4.6
Time (100µs/div)
6
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1184.2008.07.1.0