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

202005A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 24, 2012

6

AAT2120

500mA Low-Noise, Step-Down Converter

DATA SHEET

Typical Characteristics

Soft Start

Time (100µs/div)

-4

-3

-2

-1

0

1

2

3

4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

Line Regulation

Input Voltage (V)

-0.30

-0.20

-0.10

0.00

0.10

0.20

0.30

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

Output Voltage Error vs. Temperature

Temperature (°C)

-3.0

-2.0

-1.0

0.0

1.0

2.0

3.0

-40

-20

0

20

40

60

80

100

Frequency Variation vs. Input Voltage

Input Voltage (V)

-4

-3

-2

-1

0

1

2

3

4

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

Switching Frequency Variation vs. Temperature

Temperature (°C)

-10

-8

-6

-4

-2

0

2

4

6

8

10

-40

-20

0

20

40

60

80

100

No Load Quiescent Current vs. Input Voltage

Input Voltage (V)

20

25

30

35

40

45

50

55

60

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

85°C

25°C

-40°C