RT8020 datasheet(7/14 Pages) RICHTEK

Part #	RT8020

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

Download	14 Pages

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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7 / 14 page

RT8020

7

DS8020-03 August 2007

www.richtek.com

Output Current Limit vs. Temperature

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

-40 -25 -10

5

20

35

50

65

80

95 110 125

Temperature (

°C)

VOUT = 1.2V

VIN = 5.0V

VIN = 3.6V

VIN = 3.3V

Switching Frequency vs. Temperature

1.2

1.25

1.3

1.35

1.4

1.45

1.5

1.55

1.6

-40 -25 -10

5

20

35

50

65

80

95 110 125

Temperature

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

(

°C)

Output Voltage vs. Loading Current

1.180

1.185

1.190

1.195

1.200

1.205

1.210

1.215

1.220

1.225

1.230

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.91

Loading Current (A)

VIN = 5.0V

VIN = 3.6V

Output Voltage vs. Temperature

1.15

1.16

1.17

1.18

1.19

1.20

1.21

1.22

1.23

1.24

1.25

-40 -25 -10

5

20

35

50

65

80

95 110 125

Temperature

VIN = 3.6V, IOUT = 0A

(

°C)

Switching Frequency vs. Input Voltage

1.20

1.25

1.30

1.35

1.40

1.45

1.50

1.55

1.60

2.5

2.8

3.1

3.4

3.74

4.3

4.6

4.9

5.2

5.5

Input Voltage (V)

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

Output Current Limit vs. Input Voltage

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.8

3.1

3.4

3.7

4

4.3

4.6

4.9

5.2

5.5

Input Voltage (V)

VOUT = 1.2V @ TA = 25

°C

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