RT8020 查看數據表（PDF） - Richtek Technology

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RT8020

Dual High-Efficiency PWM Step-Down DC-DC Converter

Richtek Technology 

RT8020

Output Voltage vs. Loading Current

1.230

1.225

1.220

1.215

1.210

VIN = 5.0V

1.205

1.200

VIN = 3.6V

1.195

1.190

1.185

1.180

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

Loading Current (A)

Switching Frequency vs. Input Voltage

1.60

1.55

1.50

1.45

1.40

1.35

1.30

1.25

1.20

VIN = 3.6V, VOUT = 1.2V, IOUT = 300mA

2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5

Input Voltage (V)

Output Current Limit vs. Input Voltage

2.4

2.3

2.2

2.1

2.0

1.9

1.8

1.7

1.6

1.5

1.4

1.3

2.5 2.8 3.1 3.4 3.7

VOUT = 1.2V @ TA = 25°C

4 4.3 4.6 4.9 5.2 5.5

Input Voltage (V)

DS8020-03 August 2007

Output Voltage vs. Temperature

1.25

1.24

1.23

1.22

1.21

1.20

1.19

1.18

1.17

1.16

1.15

-40 -25 -10

VIN = 3.6V, IOUT = 0A

5 20 35 50 65 80 95 110 125

Temperature (°C)

Switching Frequency vs. Temperature

1.6

1.55

1.5

1.45

1.4

1.35

1.3

1.25

1.2

-40 -25 -10

VIN = 3.6V, VOUT = 1.2V, IOUT = 300mA

5 20 35 50 65 80 95 110 125

Temperature (°C)

Output Current Limit vs. Temperature

2.4

VOUT = 1.2V

2.3

VIN = 5.0V

2.2

2.1

VIN = 3.6V

2.0

1.9

1.8

VIN = 3.3V

1.7

1.6

1.5

1.4

-40 -25 -10 5 20 35 50 65 80 95 110 125

Temperature (°C)

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7

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