BD9G341AEFJ
1ch Buck Converter Integrated FET

The BD9G341AEFJ is a buck switching regulator with integrated 150mΩ power MOSFET. Current mode architecture provides fast transient response and a simple phase compensation setup. The operating frequency is programmable from 50kHz to 750kHz. Additional protection features are included such as Over Current Protection, Thermal shutdown and Under voltage lockout. The under voltage lockout and hysteresis can be set by external resistor.

Data Sheet Buy * Sample *
* This is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

 
Part Number | BD9G341AEFJ-E2
Status | Recommended
Package | HTSOP-J8
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Non-synchronous

Vin1(Min.)[V]

12.0

Vin1(Max.)[V]

76.0

Vout1(Min.)[V]

1.0

Vout1(Max.)[V]

76.0

Iout1(Max.)[A]

3.0

SW frequency(Max.)[MHz]

0.75

EN

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

4.9x6 (t=1)

Features:

  • Wide input voltage range from 12V to 76V.
  • Integrated 80V/3.5A/150mΩ NchFET.
  • Current mode.
  • Variable frequency from 50kHz to 750kHz.
  • Accurate reference voltage (1.0V ±1.5%).
  • Precision EN threshold (±3%).
  • Soft-start function
  • 0µA Standby current
  • Over Current Protection (OCP), Under Voltage Lockout (UVLO), Thermal-Shutdown TSD), Over Voltage Protection (OVP) Thermally enhanced HTSOP-J8 package

Evaluation
Board

 
    • Evaluation Board
    • BD9G341AEFJ-EVK-101
    • This evaluation board has been developed for ROHM’s non-synchronous buck DC/DC converter customers evaluating BD9G341AEFJ. While the BD9G341AEFJ accepts a power supply input range of 12V to 76V, and generates output voltages from 1V to Vcc, this evaluation board is setup for the same input voltage range and a fixed output of 5V can be produced.

  • User's Guide Design Data Buy

Design Resources

 

Technical Articles

Tools

Calculation Tools

This Calculation Sheet supports the application circuit design of switching regulators. The sheet has formulas necessary for determining peripheral parts. You can easily determine the circuit parameters that meet the desired characteristics by setting the values according to the guidance.
  • Calculation-sheet for the circuit theoretical formula - BD9G341AEFJ

Models

  • BD9G341AEFJ SPICE Model
  • Unencrypted SPICE Model (Inquiry Form)

2D/3D/CAD

  • HTSOP-J8 Footprint / Symbol
  • HTSOP-J8 3D STEP Data