RT9173/ACS Просмотр технического описания (PDF) - Richtek Technology

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RT9173/ACS

1.5A/3A Bus Termination Regulator

Richtek Technology 

Typical Operating Characteristics

Sourcing Current (Peak) vs. Temp.

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

-40 -20

VCNTL = 3.3V

VIN = 2.5V

VOUT = 1.25V

0 20 40 60 80 100 120

Temperature ( °C)

Turn-On Threshold vs. Temp.

700

650

600

550

500

450

400

-40 -20

VCNTL = 3.3V

VIN = 2.5V

0 20 40 60 80 100 120

Temperature (°C)

Transient Response

100

VIN = 2.5V

50 VREFEN = 1.25V

VCNTL = 3.3V

Swing Frequency = 1KHz

0

-50

≈

≈

2

1

0

-1

-2

Time (250µS/Div)

RT9173/A

Sinking Current (Peak) vs. Temp.

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

-40 -20

VCNTL = 3.3V

VIN = 2.5V

VOUT = 1.25V

0 20 40 60 80 100 120

Temperature ( °C)

Turn-On Threshold vs. Temp.

700

650

600

550

500

450

400

-40 -20

VCNTL = 5.0V

VIN = 2.5V

0 20 40 60 80 100 120

Temperature ( °C)

12

VIN = 2.5V

10

VCNTL = 3.3V

8

VREFEN = 1.25V

6

4

2

0

-2

Force the output shorted to ground

-4

Time (5mS/Div)

DS9173/A-06 March 2002

www.richtek-ic.com.tw

5

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