RT5047B datasheet(8/17 Pages) RICHTEK

Part #	RT5047B

Description	Single Output LNB Supply and Control Voltage Regulator

Download	17 Pages

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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8 / 17 page

RT5047B

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS5047B-00

November

2017

8

Typical Operating Characteristics

Boost Efficiency vs. Output Current

60

65

70

75

80

85

90

95

100

0.00

0.10

0.20

0.30

0.40

0.50

0.60

Output Current (A)

VIN = 12V, VBOOST = 14.3V

System Efficiency vs. Output Current

60

65

70

75

80

85

90

95

100

0.00

0.10

0.20

0.30

0.40

0.50

0.60

Output Current (A)

VIN = 12V, VBOOST = 14.3V, VLNB = 13.3V

Tone Amplitude vs. Temperature

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

-50

-25

0

25

50

75

100

125

Temperature (°C)

VIN = 12V, VLNB = 13.3V, TONE enable

Tone Amplitude vs. Output Current

0.55

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0

0.1

0.2

0.3

0.4

0.5

0.6

Output Current (A)

VIN = 12V, VLNB = 13.3V, TONE enable

Output Voltage v.s Temperature

12

13

14

15

16

17

18

19

-50

-25

0

25

50

75

100

125

Temperature (°C)

VIN = 12V

VLNB_18.3

VLNB_13.3

Output Voltage vs. Output Current

12

13

14

15

16

17

18

19

0.00

0.10

0.20

0.30

0.40

0.50

0.60

Output Current (A)

VLNB_13.3V

VIN = 12V

VLNB_ 18.3V

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