Datasheet > AAT1145

AAT1145

更新时间： 2022-06-19 19:41:31

品牌	Logo	应用领域
思佳讯 - SKYWORKS		转换器
页数	文件大小	规格书
18页	1404K
描述
1.5A Step-Down Converter

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AAT1145 数据手册

DATA SHEET

AAT1145

1.5A Step-Down Converter

Typical Characteristics

DC Regulation

(V_OUT= 1.5V; T_A= 25°C; L = 2.2µH; C_OUT= 22µF)

DC Regulation

(V_OUT= 1.2V; T_A= 25°C; L = 2.2µH; C_OUT= 22µF)

1.236

1.224

1.212

1.200

1.188

1.176

1.164

1.545

V_IN= 5.5V

1.530

1.515

1.500

1.485

1.470

1.455

V_IN= 5V

V_IN= 4.2V

V_IN= 3.6V

V_IN= 2.5V

V_IN= 5V

V_IN= 4.2V

V_IN= 3.6V

V_IN= 2.5V

300

600

900

1200

1500

300

600

900

1200

1500

Output Current (mA)

Input Current vs. Input Voltage

(V_OUT= 3.3V; L = 2.2µH)

Load Transient Response

(V_IN= 3.6V; V_OUT= 1.8V; C_OUT= 22µF; C_FF= 22pF)

2.2

0.50

0.40

0.30

0.20

0.10

0.00

2.0

1.8

1.6

2.2

1.5A

1.8

1.4

1.0

0.6

0.2

-0.2

0.2A

3.6

4.0

4.4

4.8

5.2

Input Voltage (V)

Time (200µs/div)

Start-Up Response

(V_OUT= 1.8V; V_IN= 3.6V; No Load;

C_IN= 10µF; C_OUT= 22µF; L = 2.2µH)

Soft Start

(V_IN= 3.6V; V_OUT= 1.8V; I_OUT= 1.5A; C_FF= 100pF)

V_ENABLE

(2V/div)

-2

1.8

1.3

0.8

0.3

-0.2

V_OUT

(1V/div)

Time (400µs/div)

Time (1ms/div)

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

201984B

• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013

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