RT8509

5

DS8509-01 March 2012

www.richtek.com

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Copyright 2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Boost Reference Voltage vs. Input Voltage

1

1.1

1.2

1.3

1.4

1.5

2

4

6

8

101214

Input Voltage (V)

Boost Current Limit vs. Input Voltage

2

3

4

5

6

7

2468

10

12

14

Input Voltage (V)

Typical Operating Characteristics

Boost Efficiency vs. Load Current

50

60

70

80

90

100

0

0.3

0.6

0.9

1.2

1.5

Load Current (A)

Boost Efficiency vs. Load Current

50

60

70

80

90

100

0

0.1

0.2

0.3

0.4

0.5

Load Current (A)

Boost Reference Voltage vs. Temperature

1

1.1

1.2

1.3

1.4

1.5

-50

-25

0

25

50

75

100

125

Temperature (°C)

Boost Frequency vs. Temperature

900

1000

1100

1200

1300

1400

-50

-25

0

25

50

75

100

125

Temperature (°C)