IP1837TRPBF International Rectifier, IP1837TRPBF Datasheet - Page 26

• Manufacturer Part Number: IP1837TRPBF
• Description: IC DC-DC REG SYNC BUCK LGA
• Manufacturer: International Rectifier
• Series: iPOWIR™r
• Type: Step-Down (Buck), PWM - Voltage Moder

Specifications of IP1837TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 V ~ 12 V
• Current - Output: 35A
• Frequency - Switching: 250kHz ~ 1.5MHz
• Voltage - Input: 1.5 V ~ 16 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Package / Case: *
• Package: LGA - 7.7 x 7.7
• Circuit: Single Output
• Iout (a): 35
• Switch Freq (khz): 250 - 1500
• Input Range (v): 1.5 - 16
• Output Range (v): 0.6 - 0.75*Vin
• Internal Bias Ldo: Yes
• Ocp Otp Uvlo Pre-bias Soft Start And: Remote Sense + Body Tracking + Temp Comp OCP
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL OPERATING WAVEFORMS
Vin=12.0V, Vcc=3.3V, Vo=1.8V, Io=0A ‐ 35A, Room Temperature, no airflow
Figure 22 : Start up with 1V Pre Bias , 0A Load, Ch
Figure 24 : Inductor node at 35A load
26
Ch
Figure 20: Start up at 35A Load
1
:V
in
March 3, 2011 | V1.24
, Ch
2
:V
o
Ch
, Ch
2
:LX
3
:V
ss
, Ch
4
:Enable
Highly Integrated 35A Single‐input Voltage,
2
:V
o
, Ch
3
:V
SS
Synchronous Buck Regulator
Figure 21Error! No sequence specified.: Start up at 35A Load
Figure 23: Output Voltage Ripple, 35A load Ch
Figure 25: Short (Hiccup) Recovery
Ch
1
:V
in
, Ch
Ch
2
2
:V
:V
o
out
, Ch
, Ch
3
:V
3
ss
:V
, Ch
ss
4
:V
PGood
iP1837
2
: V
97600
out