RT9199 View Datasheet(PDF) - Richtek Technology
Part Name
Description
MFG CO.
'RT9199' PDF : 13 Pages View PDF
0.9V
VIN = 1.8V
VCNTL = 5V
VIN
VCNTL
RT9199
REFEN
VOUT
GND
VOUT
A
IL
COUT V
Figure 3. Current Limit for High Side, ILIM
RT9199
Power Supply
with Current Limit
VIN = 1.8V
VCNTL = 5V
0.9V
VIN
VCNTL
RT9199
REFEN
VOUT
GND
A
IL
VOUT
COUT V
Figure 4. Current Limit for Low Side, ILIM
VIN = 1.8V
0.9V
VREFEN
0.15V
0.9V
VOUT
0V
RL and COUT
Time deleay
VCNTL = 5V
VIN
VCNTL
RT9199
REFEN
VOUT
GND
VOUT
RL
COUT V
VOUT would be low if VREFEN < 0.15V
VOUT would be high if VREFEN > 0.6V
Figure 5. REFEN Pin Shutdown Threshold, VIH & VIL
DS9199-07 September 2007
www.richtek.com
3
Share Link: 
