AAT1155(2004) Ver la hoja de datos (PDF) - Analog Technology Inc

Número de pieza

componentes Descripción

Fabricante

AAT1155
(Rev.:2004)

1MHz 2.5A Buck DC/DC Converter

Analog Technology Inc 

Typical Characteristics

Line Regulation

VOUT = 3.3V

1

0

IO = 0.3A

-1

-2

-3

-4

IO = 3.0A

-5

3.4

3.7

4

4.3

4.6

4.9

5.2

5.5

Input Voltage (V)

AAT1155

1MHz 2.5A Buck DC/DC Converter

AAT1155 Evaluation Board Over Temp

Current vs. Input Voltage, VOUT = 3.3V

3.6

3.4

3.2 55°C

3

2.8 70°C

2.6

2.4

2.2 85°C

2

1.8 100°C

1.6

3.5 3.75

4

4.25 4.5 4.75

5

5.25 5.5

Input Voltage (V)

0.0%

-1.0%

-2.0%

-3.0%

-4.0%

-5.0%

-6.0%

-7.0%

-8.0%

-9.0%

-10.0%

0.01

Load Regulation

VIN = 5.0V, VOUT = 3.3V

0.10

1.00

Load Current (A)

10.00

Non-Switching Operating Current vs.

Temperature, FB = 0V

750

700

650 2.7V 3.6V 4.2V

600

550

5.0V 5.5V

500

450

-20

0

20

40

60

80

100

120

Temperature (°C)

Over Temp Shutdown Current vs. Temperature

VOUT = 3.3V, VIN = 5.0V

5

4.5

4

3.5

3

2.5

2

-20 -10 0 10 20 30 40 50 60 70 80 90 100

Temperature (°C)

Inrush and Output Overshoot Characteristic

8

14

6

12

4

10

2

8

0

6

-2

4

-4

2

-6

0

-8

-2

0

0.4

0.8

1.2

1.6

2

Time (millisec)

6

1155.2004.08.1.2

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