IRDCIP1827 International Rectifier, IRDCIP1827 Datasheet - Page 5

• Manufacturer Part Number: IRDCIP1827
• Description: Reference Design kit for the iP1827 a 600kHz, 25A SupIRBuck Synchronous Buck Converter
• Manufacturer: International Rectifier

Specifications of IRDCIP1827

• Package: Design Kit
• Featured Part: iP1827
• Input Voltage (v): 12V
• Output Voltage (v): 1.05V
• Switching Frequency (khz): 600kHz

TYPICAL OPERATING WAVEFORMS
Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=0A-25A, Room Temperature, no airflow
1/11/2011
Ch
Fig. 4: Start up with 1V Pre Bias , 0A
1
Fig. 6: Inductor node at 25A load
:V
Fig. 2: Start up at 25A Load
in
, Ch
Load, Ch
2
:V
o
, Ch
Ch
2
:V
3
2
:V
:LX
o
, Ch
ss
, Ch
3
:V
4
SS
:Enable
Fig. 5: Output Voltage Ripple, 25A load
Ch
Fig. 7: Short (Hiccup) Recovery
1
:V
Fig. 3: Start up at 25A Load,
in
, Ch
Ch
2
2
:V
:V
Ch
out
o
2
, Ch
: V
, Ch
out ,
IRDCiP1827
3
:V
3
:V
ss
ss
, Ch
4
:V
PGood
5