7

AAT1143

1MHz 400mA Step-Down Converter

DATA SHEET

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201983B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 25, 2013

Typical Characteristics

Load Transient Response

μμF)

Time (25

μs/div)

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

-0.2

300mA

30mA

Line Transient

Time (25

μμs/div)

1.50

1.55

1.60

1.65

1.70

1.75

1.80

1.85

1.90

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

Line Regulation

Input Voltage (V)

-0.35

-0.3

-0.25

-0.2

-0.15

-0.1

-0.05

0

0.05

0.1

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

Soft Start

Time (250

μμs/div)

-4.0

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

4.0

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5