RT8284GSP 查看數據表（PDF） - Richtek Technology

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RT8284GSP

2A, 23V, 340kHz Synchronous Step-Down Converter

Richtek Technology 

RT8284

Typical Operating Characteristics

Efficiency vs. Output Current

100

90

80

VIN = 4.5V

70

VIN = 12V

60

VIN = 23V

50

40

30

20

10

VOUT = 3.3V

0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Output Current (A)

Reference Voltage vs. Temperature

0.940

0.935

0.930

0.925

0.920

0.915

0.910

0.905

0.900

-50 -25

VIN = 12V, VOUT = 3.3V

0

25 50 75

Temperature (°C)

100 125

380

370

360

350

340

330

320

310

300

4

Frequency vs. Input Voltage

VOUT = 3.3V, IOUT = 0A

6 8 10 12 14 16 18 20 22 24

Input Voltage (V)

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6

Reference Voltage vs. Input Voltage

0.940

0.935

0.930

0.925

0.920

0.915

0.910

0.905

0.900

VIN = 4.5V to 23V, VOUT = 3.3V, IOUT = 0A

4 6 8 10 12 14 16 18 20 22 24

Input Voltage (V)

Output Voltage vs. Output Current

3.36

3.35

3.34

3.33

3.32

3.31

3.30

3.29

3.28

3.27

VIN = 4.5V

VIN = 12V

VIN = 23V

3.26

3.25

3.24

VOUT = 3.3V

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Output Current (A)

380

370

360

350

340

330

320

310

300

-50

Frequency vs. Temperature

VIN = 12V, VOUT = 3.3V, IOUT = 0A

-25

0

25 50 75 100 125

Temperature (°C)

DS8284-01 March 2011

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