RT8020EPQW データシートの表示（PDF） - Richtek Technology

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RT8020EPQW

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

Richtek Technology 

RT8020E

EN Pin Threshold vs. Input Voltage

2.0

1.8

1.6

1.4

1.2

Rising

1.0

0.8

Falling

0.6

0.4

VOUT = 1.2V, L = 4.7μH,

0.2

COUT = 10μF, IOUT = 0A

0.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Input Voltage (V)

Switching Frequency vs. Input Voltage

1600

1550

1500

1450

1400

1350

1300

2.5

VOUT = 1.8V, L = 4.7μH,

COUT = 10μF, IOUT = 300mA

3

3.5

4

4.5

5

Input Voltage (V)

CH1 Output Voltage vs. Temperature

1.22

1.21

1.20

1.19

1.18

VIN = 2.5V

VIN = 3.7V

VIN = 4.5V

1.17

1.16

1.15

1.14

-50 -25

VOUT = 1.2V, L = 4.7μH,

COUT = 10μF, IOUT = 300mA

0

25 50 75

Temperature (°C)

100 125

DS8020E-02 March 2011

EN Pin Threshold vs. Temperature

2.0

1.8

1.6

1.4

1.2

Rising

1.0

0.8

Falling

0.6

0.4

0.2

0.0

-50 -25

VOUT = 1.2V, L = 4.7μH,

COUT = 10μF, IOUT = 0A

0

25 50 75

Temperature (°C)

100 125

Switching Frequency vs. Temperature

1600

1550

1500

1450

1400

1350

1300

-50 -25

VIN = 3.7V, VOUT = 1.8V, L = 4.7μH,

COUT = 10μF, IOUT = 300mA

0

25 50 75

Temperature (°C)

100 125

CH2 Output Voltage vs. Temperature

1.83

1.82

1.81

1.80

1.79

1.78

1.77

VIN = 2.5V

VIN = 3.7V

VIN = 4.5V

1.76

1.75

1.74

-50 -25

VOUT = 1.8V, L = 4.7μH,

COUT = 10μF, IOUT = 300mA

0

25 50 75

Temperature (°C)

100 125

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