BD9327EFJ-E2 by Rohm

4.75-18V 4A 1ch Buck converter

Status: Active
Series: -
RoHS: Compliant
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The BD9327EFJ is step-down regulators that integrate a low resistance high side N-channel achieves 4A continuous output current over a wide input supply range. Current mode operation provides fast transient response and easy phase compensation.

Prices starting from US$0.59


Distributor Starting From Stock
Logo for CoreStaff CoreStaff US$0.93
2,490
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Logo for Chip One Stop Chip One Stop US$0.59
795
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Logo for Avnet America Avnet America US$1.31
-
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Logo for Avnet Asia Avnet Asia -
-
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Features

Wide operating INPUT Range 4.75V to 18V
Selectable 4A Output Current
Selectable 0.1Ω / 0.15Ω Internal MOSFET Switch
Low ESR Output Ceramic Capacitors are Available
Low Standby Current during Shutdown Mode
380kHz Operating Frequency
Feedback voltage 0.9V ±1.5% Accuracy
Protection circuit : Undervoltage lockout protection circuit
Thermal shutdown circuit
Overcurrent protection circuit

Specifications

ch 1
Integrated FET / Controller Integrated FET
Topology Buck
Synchronous / Nonsynchronous Non-synchronous
Vin1(Min.)[V] 4.75
Vin1(Max.)[V] 18
Vout1(Min.)[V] 0.9
Vout1(Max.)[V] 14.4
Iout1(Max.)[A] 4
SW frequency(Max.)[MHz] 0.38
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Package Size [mm] 4.9x6 (t=1)

Resources




Schematic Design & Verification
Calculation of Power Dissipation in Switching Circuit
Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
Method for Monitoring Switching Waveform
Phase Compensation Design for Current Mode Buck Converter
Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter
Power Supply Sequence Circuit with General Purpose Power Supply IC
Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
Diode Selection Method for Asynchronous Converter
PCB Layout Techniques of Buck Converter
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
Usage of SPICE Macromodel for DC/DC
Snubber Circuit for Buck Converter IC
Efficiency of Buck Converter
Calculation of Power Loss (Synchronous)
Inductor Calculation for Buck converter IC
Considerations for Power Inductors Used for Buck Converters
Capacitor Calculation for Buck converter IC
The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
Resistor Value Table to set Output Voltage of Buck Converter IC
Importance of Probe Calibration When Measuring Power: Deskew
Impedance Characteristics of Bypass Capacitor



Manufacturing Data
Factory Information



Alternative Descriptions

IC, SW REG, STEP DOWN, HTSOP-J8 | Farnell
Conv DC-DC Single Step Down 4.75V to 18V 8-Pin SOP-J T/R | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD9327EFJ-E2?

Additional datasheets, footprints and schematics for BD9327EFJ-E2 are listed on our Part Details page. You can also find images and similar parts to BD9327EFJ-E2 on this page.

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Is the BD9327EFJ-E2 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ROHM Semiconductor.

Which authorised distributors for BD9327EFJ-E2 have stock available?

Authorised distributors including CoreStaff, Chip One Stop, Farnell, Avnet America and Avnet Asia have stock available or on a lead time for BD9327EFJ-E2.

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