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Step-down Switching Regulators with Built-in Power MOSFET - BD9G101G

Internal high-side 42V Power MOSFET. It provides 0.5A DC output with small SOT23 package. Operating frequency is fixed 1.5MHz, allowing the use of small inductor and ceramic capacitor. Phase compensation components is built in. The BD9G101G is available in SOT-23-6(SSOP6) package.

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD9G101G-TR Active SSOP6 3000 3000 Taping Yes
 
Specifications:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 6.0
Vin1(Max.)[V] 42.0
Vout1(Min.)[V] 1.0
Vout1(Max.)[V] 29.4
Iout1(Max.)[A] 0.5
SW frequency(Max.)[MHz] 1.7
EN Yes
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
Features:
  • ・ High and Wide Input Range (VCC=6V~42V)
    ・ 45V/800mΩ Internal Power MOSFET
    ・ 1.5MHz Fixed Operating Frequency
    ・ Feedback Pin Voltage 0.75V±1.5%
    ・ Internal compensated
    ・ Internal Over Current protection, Under Voltage Locked Out, Thermal shutdown
    ・ 0μA Shutdown Supply Current
    ・ 6-Lead SOT-23 package(SSOP6)
 
 
Technical Data
Reference Circuits and Bomlist

Reference Circuits and Bomlist

Evaluation Board User's Guide

Evaluation Board for ROHM's BD9G101G Buck Converter with Built-In Power FET

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