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1.0A输出 FET内置型 高效率降压开关稳压器_BU90004GWZ

BU9000xGWZ是以最大6MHz的开关频率工作的小型、高效率降压开关稳压器。支持最大1.0A(VIN=3.0~5.5V时)的输出电流,最适用于电池驱动的便携设备。根据MODE引脚的逻辑,可自动切换强制PWM模式或PWM/PFM模式。在PFM模式时可减小自消耗电流,提高轻负载时的效率。

* 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
BU90004GWZ-E2 供应中 UCSP35L1 3000 3000 Taping Yes
 
特性:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 2.3
Vin1(Max.)[V] 5.5
Vout1(Min.)[V] 1.8
Vout1(Max.)[V] 1.8
Iout1(Max.)[A] 1.0
SW frequency(Max.)[MHz] 6.0
Light Load mode Yes
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
特点:
  • ・Fast transient response
    ・Automatic PFM/PWM operation
    ・Forced PWM operation
    ・Internal Soft Start
    ・Under voltage lockout
    ・Over current protection
    ・Thermal shutdown
 
 
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BU90008GWZ 1.0A输出 FET内置型 高效率降压开关稳压器 UCSP35L1   购买
BU90009GWZ 1.0A输出 FET内置型 高效率降压开关稳压器 UCSP35L1   购买
BU90002GWZ 1.0A输出 FET内置型 高效率降压开关稳压器 UCSP35L1   购买
BU90003GWZ 1.0A输出 FET内置型 高效率降压开关稳压器 UCSP35L1   购买
BU90005GWZ 1.0A输出 FET内置型 高效率降压开关稳压器 UCSP35L1   购买
BU90006GWZ 1.0A输出 FET内置型 高效率降压开关稳压器 UCSP35L1   购买
New Products:
 
 
技术信息
Evaluation Board User's Guide

Evaluation Board for ROHM's BU90004GWZ Synchronous Buck Converter with Integrated FET

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.

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.

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.

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...

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.

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.

Considerations for Power Inductors Used for Buck Converters

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

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.

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.

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.