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AAT1153

2A Step-Down Converter

PRODUCT DATASHEET

1153.2008.02.1.2

www .analogictech.com

AAT1153

2A Step-Down Converter

PRODUCT DATASHEET

1153.2008.02.1.2

www .analogictech.com

Typical Characteristics

P-Channel R

DS(ON) vs. Input Voltage

Input Voltage (V)

100

120

140

160

180

200

2.5

3.5

4.5

5.5

25°C

-40°C

85°C

N-Channel R

DS(ON) vs. Input Voltage

Input Voltage (V)

110

130

150

2.5

3.5

4.5

5.5

85°C

25°C

-40°C

Switching Frequency vs. Temperature

(VIN = 3.6V; VOUT = 1.8V)

Temperature (°C)

1.0

1.1

1.2

1.3

1.4

-40

-20

100

Reference Voltage vs. Temperature

(VIN = 3.6V)

Temperature (°C)

0.591

0.593

0.595

0.597

0.599

0.601

0.603

0.605

0.607

0.609

-40

-20

100

Soft Start

(VIN = 3.6V; VOUT = 1.8V; IOUT = 2A; CFF = 22pF)

Time (400µs/div)

-2

-0.2

0.2

0.6

1.0

1.4

Load Transient Response

(VIN = 3.6V; VOUT = 1.8V; L = 2.2µH; CIN = COUT = 22µF)

Time (400µs/div)

1.6

1.8

2.0

2.2

-0.2

0.2

0.6

1.0

1.4

1.8

2.2

2.6

200mA

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