IR3899MPBF IRF [International Rectifier], IR3899MPBF Datasheet - Page 8

• Manufacturer Part Number: IR3899MPBF
• Description: USER GUIDE FOR IR3899 EVALUATION BOARD
• Manufacturer: IRF [International Rectifier]

TYPICAL OPERATING WAVEFORMS
Vin=12.0V, Vo=1.2V, Io=0-9A, Room Temperature, no airflow
12/8/2011
Fig. 9: Start up with 1V Pre Bias , 0A Load,
Ch
Fig. 11: Inductor node at 9A load
1
:V
Fig. 7: Start up at 9A Load
in
, Ch
2
:V
o
Ch
, Ch
Ch
3
:LX
2
3
:V
:P
o
Good
Ch
4
:Enable
Fig. 10: Output Voltage Ripple, 9A load
Fig. 12: Short circuit (Hiccup) Recovery
Ch
1
:V
Fig. 8: Start up at 9A Load,
in
, Ch
Ch
IRDC3899-P1V2
2
2
Ch
:V
:V
o
2
out
, Ch
: V
, Ch4:Iout
out ,
3
:Vcc, Ch
4
:P
Good
8