RT5047A Просмотр технического описания (PDF) - Richtek Technology

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RT5047A

Single Output LNB Supply and Control Voltage Regulator

Richtek Technology 

Over Current Protect vs. Temperature

0.70

0.65

0.60

0.55

0.50

VIN = 12V, VLNB = 13.3V

-25

0

25

50

75

100 125

Temperature (°C)

Tone Output

RT5047A

Under Voltage Lockout vs. Temperature

8.00

7.80

7.60

7.40

7.20

7.00

-50 -25

0

25 50 75

Temperature (°C)

100 125

Output Voltage Transition Rising

VLNB

(5V/Div)

VLNB_ac

(200mV/Div)

Time (50s/Div)

VIN = 12V

Output Voltage Transition Falling

VLNB

(5V/Div)

VSEL

(2V/Div)

VIN = 12V, VSEL from 3.3V to 0V,

CLNB = 1F, VLNB from 18V to 13V

Time (500s/Div)

VSEL

(2V/Div)

VIN

(10V/Div)

VBOOST

(10V/Div)

VLNB

(10V/Div)

VIN = 12V VSEL from 0V to 3.3V,

CLNB = 0.1F, VLNB from 13V to 18V

Time (500s/Div)

Power On Sequence

Time (5ms/Div)

VIN = 12V

Copyright © 2015 Richtek Technology Corporation. All rights reserved.

DS5047A-00 March 2015

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

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