RT9270PF 데이터 시트보기 (PDF) - Richtek Technology

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RT9270PF

High Performance, Low Noise Boost Converter

Richtek Technology 

Preliminary

RT9270

VFB vs. VIN

1.26

1.25

1.24

1.23

1.22

1.21

Ambient Temperature = 25°C

1.20

2 2.5 3 3.5 4 4.5 5 5.5 6

VIN (V)

Output Voltage vs. Output Current

12.1

12.05

12

11.95

11.9

11.85

11.8

11.75

11.7

VIN = 3.3V

11.65

0

30 60

90 120 150 180 210

Output Current (mA)

1600

1400

1200

Maximum Output Current vs. VIN

TA = 25°C,fosc = 670kHz

VOUT = 7.2V

1000

800

VOUT = 12V

600

400

200

0

3

3.5

4

4.5

5

5.5

6

VIN (V)

DS9270-09 March 2007

VFB vs. Temperature

1.26

1.25

1.24

1.23

1.22

1.21

VIN = 3.3V

1.20

-60 -40 -20

0 20 40 60

Temperature (° C)

80 100

No Load Supply Current vs. VIN

0.5

0.45

fosc = 1.3 MHz

0.4

fosc = 670kHz

0.35

0.3

0.25

0.2

2 2.5 3 3.5 4 4.5 5 5.5 6

VIN (V)

Maximum Output Current vs. VIN

1600

TA = 25°C,fosc = 1.3MHz

1400

1200

1000

800

VOUT = 7.2V

600

VOUT = 12V

400

200

0

3

3.5

4

4.5

5

5.5

6

VIN (V)

www.richtek.com

7

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