IR3894MTR1PBF International Rectifier, IR3894MTR1PBF Datasheet - Page 33

• Manufacturer Part Number: IR3894MTR1PBF
• Description: 12A Highly Integrated Single-Input Voltage, Synchronous Buck Regulator in a PQFN package.
• Manufacturer: International Rectifier

Specifications of IR3894MTR1PBF

• Part Status: Active and Preferred
• Package: PQFN / 5 x 6
• Circuit: Single Output
• Iout (a): 12
• Switch Freq (khz): 0 - 1500
• Input Range (v): 1.0 - 16
• Output Range (v): 0.5 - 12
• Pbf: PbF Option Available

TYPICAL OPERATING WAVEFORMS
PVin = 12V, Vo = 1.2V, Iout = 0‐12A, Room Temperature, No Air flow
Figure 33: Inductor node at 12A load, Ch
Figure 31: Start up with Pre Bias Voltage,
Ch
1
33
:Vout, Ch
Figure 29: Start up at 12A Load,
FEBRUARY 01, 2012 | DATA SHEET | Rev 3.0
0A Load, Ch
2
:Vin, Ch
3
:P
1
Good
:V
o
Ch
4
Single‐Input Voltage, Synchronous Buck Regulator
:Enable
1
:SW node
- 33 -`
12A Highly Integrated SupIRBuck
Ch
Figure 32: Output Voltage Ripple,
Figure 34: Short Circuit Recovery,
Figure 30: 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