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4.2V to 18V, 2A 1ch Synchronous Buck Converter Integrated FET - BD9328EFJ-LB

This is the product guarantees long time support in Industrial market. The BD9328EFJ-LB is a synchronous step-down switching regulator that integrates 2 low resistance N-channel MOSFETs. It achieves 2A continuous output current over a wide input supply range. Current mode operation provides fast transient response and easy phase compensation.
ROHM recommends BD9C301FJ-LB for new design.
Please refer to Buck DC/DC Converter IC Replacement Guide for more information.

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Part number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD9328EFJ-LBE2 Active(Inquiry) HTSOP-J8 2500 2500 Taping Yes
 
Specifications:
Grade Industrial
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 4.2
Vin1(Max.)[V] 18.0
Vout1(Min.)[V] 0.9
Vout1(Max.)[V] 12.6
Iout1(Max.)[A] 2.0
SW frequency(Max.)[MHz] 0.38
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Features:
  • ・Long Life Cycle Product
    For Industrial Applications.
    ・Low ESR Output Ceramic Capacitors are
    Available
    ・Low Standby Current during Shutdown Mode
    ・380 kHz Fixed Operating Frequency
    ・Feedback voltage
    ・ 0.9V ± 1.5%(Ta=25℃),
    ・ 0.9V ± 2.0%(Ta=-25℃ to 85℃)
    ・Protection Circuits
    ・ Under Voltage Lockout Protection
    ・ Thermal Shutdown
    ・ Over Current Protection
 
 
Technical Data
Application Note

Capacitor Calculation for Buck converter IC

Application Note

Inductor Calculation for Buck converter IC

Application Note

Resistor Value Table to set Output Voltage of Buck Converter IC

Application Note

Thermal Resistance

Application Note

PCB Layout Techniques of Buck Converter

Application Note

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Application Note

Calculation of Power Loss (Synchronous)

Application Note

Considerations for Power Inductors Used for Buck Converters

Application Note

Snubber Circuit for Buck Converter IC

Application Note

Efficiency of Buck Converter

Application Note

Buck DC/DC Converter Recommended Inductor List