IR3840WMTR1PBF International Rectifier, IR3840WMTR1PBF Datasheet - Page 30

• Manufacturer Part Number: IR3840WMTR1PBF
• Description: IC REG SYNC BUCK 12A 15-QFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck)r

Specifications of IR3840WMTR1PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 14.4 V
• Current - Output: 12A
• 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: 2.5W
• Primary Input Voltage: 16V
• No. Of Outputs: 1
• Output Voltage: 14.4V
• Output Current: 12A
• No. Of Pins: 15
• Operating Temperature Range: -40°C To +125°C
• Output Voltage Adjustable Max, Vout: 14.4V
• Rohs Compliant: Yes
• Dc To Dc Converter Type: Step Down
• Pin Count: 15
• Input Voltage: 16V
• Switching Freq: 225 TO 1650KHz
• Package Type: Power QFN EP
• Output Type: Adjustable
• Switching Regulator: Yes
• Mounting: Surface Mount
• Input Voltage (min): 1.5V
• Operating Temperature Classification: Automotive
• Part Status: Preferred
• Package: PQFN / 5 x 6
• Circuit: Single Output
• Iout (a): 12
• 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: IR3840WMTR1PBFTR

Rev 9.0
Single point
connection between
AGND & PGND,
should be close to
the SupIRBuck, kept
away from noise
sources.
Feedback
trace should
be kept
away form
noise
sources
Analog
Ground
plane
Fig. 26c. IRDC3840W demoboard layout
considerations – Mid Layer 1
Fig. 26b. IRDC3840W demoboard layout
considerations – Bottom Layer
Fig. 26d. IRDC3840W demoboard layout
considerations – Mid Layer 2
IR3840WMPbF
Use separate traces
for connecting Boot
cap and Rocset to the
switch node and with
the minimum length
traces. Avoid big
loops.
AGnd
Power
Ground
Plane
PGnd
Vin
30