RT9173B Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT9173B Datasheet PDF : 13 Pages
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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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