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自动控制升降压开关稳压器_BD9035AEFV-C

BD9035AEFV-C是可在宽输入范围(VIN=3.8~30V)内使用的高耐压升降压开关控制器,可由1个电感线圈生成升降压输出。本IC的开关频率在所有工作温度范围(Ta=-40°C+125°C)内实现了±7%的高精度。此外,采用升降压自动控制方式,与以往的Sepic方式、H桥方式的开关稳压器相比,实现了高效电源。

型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD9035AEFV-CE2 供应中 HTSSOP-B24 2000 2000 Taping Yes
 
特性:
Grade Automotive
ch 1
Integrated FET / Controller Controller
Buck / Boost / Buck-Boost / Inverting Buck-Boost
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 3.8
Vin1(Max.)[V] 30.0
Vout1(Min.)[V] 3.3
Vout1(Max.)[V] 3.7
SW frequency(Max.)[MHz] 0.6
EN Yes
PGOOD Yes
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
特点:
  • · Power supply voltage: 40V(maximum rating)
    · Automatically controlled buck-boost system.
    · ±7% High accuracy switching frequency (Ta=-40°C~+125°C).
    · PLL circuit for external synchronization: 100kHz~600kHz
    · Two-stage overcurrent protection through one external resistor.
    · Various protection functions
    · Undervoltage, overvoltage output detection circuit & constant output monitor pin (PGOOD)
    · AEC-Q100 Qualified
 
 
应用:
 
 
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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.

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.