RT8272 데이터 시트보기 (PDF) - Richtek Technology

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RT8272

3A, 24V, 1.2MHz Step-Down Converter

Richtek Technology 

Typical Operating Characteristics

100

90

80

70

60

50

40

30

20

10

0

0

Efficiency vs. Output Current

VIN = 12V

VIN = 24V

VOUT = 3.3V

0.5

1

1.5

2

2.5

3

Output Current (A)

Reference Voltage vs. Temperature

0.94

0.935

0.93

0.925

0.92

0.915

0.91

0.905

0.9

-50 -25

VIN = 12V

0

25 50 75

Temperature (°C)

100 125

Frequency vs. Input Voltage

1.23

1.22

1.21

1.20

1.19

1.18

1.17

VOUT = 3.3V, IOUT = 0.3A

4 6 8 10 12 14 16 18 20 22 24

Input Voltage (V)

DS8272-02 March 2011

RT8272

Reference Voltage vs. Input Voltage

0.925

0.924

0.923

0.922

0.921

0.920

0.919

0.918

0.917

0.916

0.915

4 6 8 10 12 14 16 18 20 22 24

Input Voltage (V)

3.350

3.345

3.340

3.335

3.330

3.325

3.320

3.315

3.310

3.305

3.300

0

Output Voltage vs. Output Current

0.5

1

1.5

2

Output Current (A)

VIN = 12V

2.5

3

Frequency vs. Temperature

1.30

1.25

1.20

1.15

1.10

1.05

1.00

-50 -25

VIN = 12V, VOUT = 3.3V, IOUT = 0.3A

0

25 50 75 100 125

Temperature (°C)

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5

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