RT9173BPS Просмотр технического описания (PDF) - Richtek Technology

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RT9173BPS

2A Bus Termination Regulator

Richtek Technology 

1.25V

3.3V

2.5V

VCNTL

VIN

RT9173B

REFEN

VOUT

GND

VOUT

A

IL

COUT V

Figure 3. Current Limit for High Side, ΙCLHIGH

1.25V

3.3V

Power Supply

with Current Limit

2.5V

VCNTL

VIN

RT9173B

REFEN

VOUT

GND

A

IL

VOUT

COUT V

RT9173B

Figure 4. Current Limit for Low Side, ΙCLLOW

3.3V

2.5V

1.25V

VREFEN

0.2V

1.25V

VOUT

0V

RL and COUT

Time deleay

VCNTL

VIN

RT9173B

REFEN

VOUT

GND

RL

VOUT would be low if VREFEN < 0.2V

VOUT would be high if VREFEN > 0.6V

VOUT

COUT V

Figure 5. REFEN Pin Shutdown Threshold, VTRIGGER

DS9173B-09 March 2007

www.richtek.com

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