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3.6-35V 2ch Boost / Inverting / Buck converter(controller)_BA9741F

该IC根据脉冲幅调整方式,内置双电路开关稳压器控制器。2个电路都能实现降压、升压、负电压工作。此外,小型的封装最适合用作小型便携设备电源。

* 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
BA9741F-E2 供应中 SOP16 2500 2500 Taping Yes
 
特性:
Grade Standard
ch 2
Integrated FET / Controller Controller
Buck / Boost / Buck-Boost / Inverting Buck / Boost / Inverting
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 3.6
Vin1(Max.)[V] 35.0
Iout1(Max.)[A] 0.1
Vin2(Min.)[V] 3.6
Vin2(Max.)[V] 35.0
SW frequency(Max.)[MHz] 0.8
Light Load mode No
EN No
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
特点:
  • ・内置Timer Latch 式短路保护电路
    ・内置输入电压时误动作防止电路
    ・内置基准电压(2.5V),附有输出端子
    ・全Duty范围内可以调整休止期间
    ・输入范围广3.6V to 35V
 
 
应用:
引脚配置图:
Pin Configration
 
 
相关产品
相关新产品/产品更新电源管理
PART NUMBER Product Name Package Datasheet Distribution Inventory
BA9741FS 3.6-35V 2ch Boost / Inverting / Buck converter(controller) SSOP-A16   购买
BA9743AFV 3.6-35V 2ch Boost / Inverting / Buck converter(controller) SSOP-B16   购买
BA9744FV 2.5-35V 2ch Boost / Inverting / Buck converter(controller) SSOP-B16   购买
New Products:
 
 
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.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

PCB Layout Techniques of Buck Converter

Major problems that arise from in appropriate layout may cause increase in noise superposed by output and switching signal, the deterioration of regulator, and also lack of stability...

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

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

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.