IR3842WMTR1PBF International Rectifier, IR3842WMTR1PBF Datasheet - Page 25

• Manufacturer Part Number: IR3842WMTR1PBF
• Description: IC REG SYNC BUCK 4A 15-QFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck)r

Specifications of IR3842WMTR1PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 14.4 V
• Current - Output: 4A
• Frequency - Switching: 225kHz ~ 1.65MHz
• Voltage - Input: 1.5 ~ 16 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 15-PowerVQFN
• Power - Output: 640mW
• Primary Input Voltage: 16V
• No. Of Outputs: 1
• Output Voltage: 14.4V
• Output Current: 4A
• No. Of Pins: 15
• Operating Temperature Range: -40°C To +125°C
• Output Voltage Adjustable Max, Vout: 14.4V
• Rohs Compliant: Yes
• Part Status: Preferred
• Package: PQFN / 5 x 6
• Circuit: Single Output
• Iout (a): 4
• Switch Freq (khz): 250 - 1500
• Input Range (v): 1.5 - 16
• Output Range (v): 0.7 - 0.9*Vin
• Ocp Otp Uvlo Pre-bias Soft Start And: PGOOD + EN + SEQ + OVD
• Design Tool: Yes
• Server Storage: Yes
• Routers Switches: Yes
• Base Station Telecom: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: IR3842WMTR1PBFTR

Rev 11.0
TYPICAL OPERATING WAVEFORMS
Vin=12.0V, Vcc=5V, Vo=1.8V, Io=0-4A, Room Temperature, No Air Flow
Ch
1
:V
Fig. 19. Start up with 1.62V Pre
Bias, 0A Load, Ch
Fig. 21. Inductor node at 4A load
Fig. 17. Start up at 4A Load
in
, Ch
2
:V
o
, Ch
Ch
3
2
:V
:LX
2
ss
:V
, Ch
o
, Ch
4
:Enable
3
:V
SS
Fig. 20. Output Voltage Ripple, 4A
Fig. 22. Short (Hiccup) Recovery
Ch
1
:V
Fig. 18. Start up at 4A Load,
in
, Ch
Ch
load Ch
2
2
:V
:V
IR3842WMPbF
o
o
, Ch
, Ch
2
3
: V
3
:V
:V
ss
o
SS
, Ch
4
:V
PGood
25