IR3897MTRPBF International Rectifier, IR3897MTRPBF Datasheet - Page 36
IR3897MTRPBF
Manufacturer Part Number
IR3897MTRPBF
Description
4A Highly Integrated Single-Input Voltage, Synchronous Buck Regulator in a PQFN package.
Manufacturer
International Rectifier
Datasheet
1.IR3897MTR1PBF.pdf
(42 pages)
Specifications of IR3897MTRPBF
Part Status
Active and Preferred
Package
PQFN / 4 x 5
Circuit
Single Output
Iout (a)
4
Switch Freq (khz)
0 - 1500
Input Range (v)
1.0 - 16
Output Range (v)
0.5 - 12
Pbf
PbF Option Available
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
IR3897MTRPBF
Manufacturer:
INFINEON
Quantity:
2 140
TYPICAL OPERATING WAVEFORMS
Vin = 12V, Vo = 1.2V, Iout = 0‐4A, Room Temperature, No Air Flow
800KHz from free running 600KHz , Ch
Figure 40: Feed Forward for Vin change from 7 to16V
and back to 7V, Ch
Figure 42: External Frequency Synchronization to
Figure 44: Voltage Margining using Vref pin
Ch2‐Vo,Ch3‐Vref,Ch4‐PGood
36
FEBRUARY 02, 2012 |DATA SHEET | Rev 3.2
2
:V
o
, Ch
1
:LX, Ch
Single‐Input Voltage, Synchronous Buck Regulator
4
:Vin
2
:Vo,Ch4‐Rt/Sync Ch2‐Vo,Ch3‐PGood
- 36 -
4A Highly Integrated SupIRBuck
Figure 41: Start/Stop using S‐Ctrl pin,
Ch
45: Voltage tracking using Vp pin
Ch2‐Vo,Ch3‐Vp,Ch4‐PGood
Figure 43: Over Voltage protection,
1
:Enable, Ch
2
:V
o
, Ch
TM
3
:pGood, Ch
IR3897
4
:S‐Ctrl
PD‐97663