IR3899MTRPBF International Rectifier, IR3899MTRPBF Datasheet - Page 36

• 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 40: Feed Forward for Vin change from 7 to 16V
800KHz from free running 600KHz, Ch
Figure 42: External Frequency Synchronization to
Figure 44: Voltage Margining using Vref Pin,
36
and back to 7V, Ch
Ch
2
‐Vout, Ch
FEBRUARY 02, 2012 |DATA SHEET | 3.3
Ch
4
‐Rt/Sync Voltage
3
‐Vref, Ch
2
‐Vout, Ch
4
‐PGood
Single‐Input Voltage, Synchronous Buck Regulator
1
3
‐LX, Ch
‐Vin
2
‐Vout,
- 36 -
9A Highly Integrated SupIRBuck
Figure 41: Start/Stop using S‐Ctrl Pin, Ch
Figure 45: Voltage Tracking using Vp Pin,
Figure 43: Over Voltage protection,
Ch
Ch
2
2
‐Vout, Ch
‐Vout, Ch
Ch
2
‐Vout, Ch
3
3
‐Vp, Ch
‐S_Ctrl, Ch
TM
3
‐PGood
4
‐PGood
4
‐EN
IR3899
1
‐PGood,
PD‐97661