IR3899MTRPBF International Rectifier, IR3899MTRPBF Datasheet - Page 33

• Manufacturer Part Number: IR3899MTRPBF
• Description: 9A Highly Integrated Single-Input Voltage, Synchronous Buck Regulator in a PQFN package.
• Manufacturer: International Rectifier

Specifications of IR3899MTRPBF

• Part Status: Active and Preferred
• Package: PQFN / 4 x 5
• Circuit: Single Output
• Iout (a): 9
• Switch Freq (khz): 0 - 1500
• Input Range (v): 1.0 - 16
• Output Range (v): 0.5 - 12
• Pbf: PbF Option Available

TYPICAL OPERATING WAVEFORMS
Vin = 12V, Vo = 1.2V, Iout = 0‐9A, Room Temperature, No Air Flow
Figure 33: Inductor node at 9A load, Ch
33
Figure 31: Start up with 1V Pre Bias,
Ch
Figure 29: Start up at 9A Load,
1
:V
in
FEBRUARY 02, 2012 |DATA SHEET | 3.3
, Ch
0A Load, Ch
2
:V
o
, Ch
3
:P
Good
2
:V
Ch
o
Single‐Input Voltage, Synchronous Buck Regulator
4
:Enable
2
:LX
- 33 -
9A Highly Integrated SupIRBuck
Figure 32: Output Voltage Ripple,
Figure 34: Short Circuit Recovery,
Ch
Figure 30: Start up at 9A Load,
1
Ch2‐Vout, Ch4:Iout (5A/Div)
:V
in
, Ch
9A Load, Ch
2
:V
o
, Ch
3
TM
:Vcc, Ch
2
:Vout
4
:P
IR3899
Good
PD‐97661