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2ch 同步整流降压转换器_BD93291EFJ

The BD93291EFJ is a dual synchronous buck converter.It integrates wide input voltage range (8.0V to 26V) synchronous buck converter and low input voltage (Vout1 : 5.0V) synchronous buck converter. The IC also incorporates a new technology called H3RegTM, a Rohm proprietary control method which facilitates ultra-high transient response against changes in load. SLLM (Simple Light Load Mode) technology is also integrated to improve efficiency when powering lighter loads. For protection and ease of use, the IC also incorporates soft start. Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power transistor in HTSOP-J8 package.

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD93291EFJ-E2 供应中 HTSOP-J8 2500 2500 Taping Yes
 
特性:
Grade Standard
ch 2
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 8.0
Vin1(Max.)[V] 26.0
Vout1(Min.)[V] 4.925
Vout1(Max.)[V] 5.075
Iout1(Max.)[A] 1.7
Vin2(Min.)[V] 5.0
Vin2(Max.)[V] 5.0
Vout2(Min.)[V] 0.8
Vout2(Max.)[V] 4.0
Iout2(Max.)[A] 0.5
SW frequency(Max.)[MHz] 2.5
Light Load mode Yes
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
特点:
  • ・ Dual Synchronous Buck Converter in small package.
    ・ standby mode ( Istandby = 0uA )
    ・ High Voltage Synchronous Buck Converter(Vout1)
    - Wide input range(8.0V to 26V) *absolute voltage 30V
    - H3RegTM DC/DC Converter Controller included
    - Output Current 1.7A *1
    - FET on resistance High-side 0.175Ω/Low-side 0.175Ω
    - Internal soft-start function
    - Switching Frequency 300 to 600kHz
    (*According to input/output conditions)
    - Fixed output voltage (5.0V ± 1.5%; Normal Mode)
    ・ Low Voltage Synchronous Buck Converter(Vout2)
    - Input voltage range 5.0V(VOUT1)
    - H3RegTM DC/DC Converter Controller included
    - Output Current 0.5A *1
    - FET on resistance High-side 0.25Ω/Low-side 0.25Ω
    - Internal soft-start function
    - Switching Frequency 1.5M to 2.5MHz
    (*According to input/output conditions)
    - Feedback voltage (0.8V ± 1.5%; Normal Mode)
    ・ Protection Circuits
    Under Voltage Lockout Protection
    Thermal Shutdown
    Over Current Protection
    ・ HTSOP-J8 Package with Exposed thermal PAD.
 
 
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技术信息
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.