IR3894 IRF [International Rectifier], IR3894 Datasheet - Page 34

• Manufacturer Part Number: IR3894
• Description: 12A HIGHLY INTERGRATED SUPLRBUCK
• Manufacturer: IRF [International Rectifier]

TYPICAL OPERATING WAVEFORMS
PVin = 12V, Vo = 1.2V, Iout = 0‐12A, Room Temperature, No Air flow
Figure 34: Inductor node at 12A load, Ch
Figure 32: Start up with Pre Bias Voltage,
Ch
1
34
:Vout, Ch
Figure 30: Start up at 12A Load,
AUGUST 08, 2012 | DATA SHEET | Rev 3.1
0A Load, Ch
2
:Vin, Ch
3
:P
1
Good
:V
o
Ch
4
Single‐Input Voltage, Synchronous Buck Regulator
:Enable
1
:SW node
- 34 -`
12A Highly Integrated SupIRBuck
Ch
Figure 33: Output Voltage Ripple,
Figure 35: Short Circuit Recovery,
Figure 31: Start up at 12A Load,
1
: Vout , Ch
Ch
1
‐Vout, Ch
12A Load, Ch
2
:Vin, Ch
4
:Iout (5A/Div)
1
3
:Vout
:P
Good
, Ch
IR3894
4
:V
cc
PD‐97745