IRDC3820A International Rectifier, IRDC3820A Datasheet - Page 8

• Manufacturer Part Number: IRDC3820A
• Description: BOARD EVAL SYNC BUCK CONVERTER
• Manufacturer: International Rectifier

TYPICAL OPERATING WAVEFORMS
Vin=Vcc=12.0V, Vo=1.8V, Io=0- 14A, Room Temperature, No Air Flow
Rev 0.0
01/07/2008
Fig. 11: Inductor node voltage at 14A load
Fig. 9: Pre-Bias Start up, 0A Load
Ch
Fig.7: Start up into 14A Load
Ch
1
:V
1
in
:V
, Ch
in
Ch
, Ch
1
2
:LX, Ch
:V
2
SS
:V
, Ch
SS
, Ch
3
4
:V
:I
3
out
out
:V
, Ch
out
4
:I
out
Fig. 12: Shorted Hiccup Condition Recovery
Fig. 10: Output Voltage Ripple, 14A load
Ch
1
Fig. 8: Start up into 14A Load,
:V
in
, Ch
Ch
Ch
2
:V
2
3
:V
: V
SS
SS
, Ch
out ,
, Ch
Ch
3
:V
4
IRDC3820A
3
: I
:V
out
out
out
,
Ch
4
:V
PGood
8