Downloading...
 
product-image
 

1ch 7.0-35V输入 2A降压 DC/DC转换器_BD9778F

罗姆的柔性降压开关稳压器是外置电阻、可自由设置工作频率、内置高耐压POWER MOSFET的开关稳压器。具有输入电压范围广(7V~35V)、工作温度范围广(-40~125°C)的优点,适用于各种应用。此外,还内置了温度保护电路(TSD)、过电流保护电路(OCP)、欠压锁定电路(UVLO)等丰富的保护电路,在各种条件下均能提供可靠的保护,实现设备的高可靠性。

型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD9778F-E2 供应中 SOP8 2500 2500 Taping Yes
 
特性:
Grade Automotive
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 7.0
Vin1(Max.)[V] 35.0
Vout1(Min.)[V] 1.0
Vout1(Max.)[V] 35.0
Iout1(Max.)[A] 2.0
SW frequency(Max.)[MHz] 0.5
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
特点:
  • ・输入电压范围广(7V to 35V)
    ・待机时耗电0μA
    ・通过外接电阻可以设定输出电压(1V to VIN)
    ・通过外接电阻可变更振荡频率(50kHz to 500kHz)
    ・内置Pch POWER MOSFET
 
 
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
BD9778HFP 1ch 7.0-35V输入 2A降压 DC/DC转换器 HRP7   购买
BD9781HFP 1ch 7.0-35V输入 4A降压 DC/DC转换器 HRP7   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.