APW7137 데이터 시트보기 (PDF) - Anpec Electronics

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APW7137

1MHz, High Efficiency, Step-Up Converter with Internal FET Switch

Anpec Electronics 

APW7137

Typical Operating Characteristics

(Refer to Fig 1. in the section “Typical Application Circuits”, VIN=3.6V, TA=25oC, unless otherwise specified)

Switching Current vs. Supply Voltage

1.2

Reference Voltage vs.

Junction Temperature

1.28

1.27

1

1.26

0.8

1.25

1.24

0.6

1.23

1.22

0.4

1.21

0.2

0

2.5

VFB=1.0V

3 3.5 4 4.5 5 5.5 6

Supply Voltage, VIN (V)

1.20

1.19

1.18

-50

-25 0 25 50 75 100 125

Junction Temperature, TJ (°C)

Switch ON Resistance vs.

Junction temperature

0.9

Maximum Duty Cycle vs.

Supply Voltage

100

0.8

0.7

0.6

VIN=2.7

0.5

V

0.4

VIN=3.6V

0.3

0.2

-50 -25 0

VIN=5V

25 50

75 100 125

Junction Temperature, TJ (°C)

90

80

70

60

50

40

2.5 3 3.5 4 4.5 5 5.5 6

Supply Voltage, VIN (V)

Switching Frequency vs.

Supply Voltage

1.2

1.1

1

0.9

Switching Frequency vs.

Junction Temperature

1.2

1.1

1

0.9

0.8

0.8

0.7

0.7

0.6

0.6

0.5

0.5

0.4

2.5 3 3.5 4 4.5 5 5.5 6

Supply Voltage, VIN (V)

0.4

-50

-25 0 25 50 75 100 125

Junction Temperature, TJ (°C)

Copyright © ANPEC Electronics Corp.

4

Rev. A.4 - Oct., 2008

www.anpec.com.tw

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