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MIC4690YM PDF预览

MIC4690YM

更新时间: 2024-02-27 22:06:14
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
12页 276K
描述
500kHz 1A SuperSwitcher Buck Regulator

MIC4690YM 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Transferred零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.31
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:34 V
最小输入电压:4 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e4
长度:4.9 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.879 mm表面贴装:YES
切换器配置:BUCK最大切换频率:550 kHz
温度等级:AUTOMOTIVE端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3.9 mm

MIC4690YM 数据手册

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MIC4690  
500kHz 1A SuperSwitcher™ Buck Regulator  
General Description  
Features  
The MIC4690 SuperSwitcher™ is an easy-to-use, 500kHz  
step-down PWM voltage regulator. The MIC4690 achieves  
over1Aofcontinuousoutputcurrentoverawideinputvoltage  
range in an 8-lead SO (small outline) package.  
• SO-8 package with over 1A output current  
• Fixed 500kHz operation  
• Wide 4V to 34Vinput voltage range  
• Output voltage adjustable to 1.23V  
• All surface mount solution  
• Internally compensated with fast transient response  
• Up to 85% efficiency  
• Overcurrent protection  
The high switching frequency of the MIC4690 allows the  
smallest surface-mount inductors and capacitors to be used.  
Internal compensation ensures fast transient response and a  
minimum amount of external components.  
• Frequency foldback short-circuit protection  
• Thermal shutdown  
The MIC4690 features a power SO-8 package with a special  
lead frame that allows over 1A of continuous current. The  
MIC4690, housedinanSO-8, canreplacelargerTO-220and  
TO-263 packages in many applications.  
Applications  
• Simple 1A step-down (buck) regulator  
• Replacement of TO-220 and TO-263 designs  
• 12V to 5V/3.3V/2.5V/1.8V/1.5V conversion  
• 5V to 2.5V/1.8V/1.5V conversion  
• On-card switching regulators  
• Hard disk drives  
The MIC4690 allows for a high degree of safety. It has a wide  
input voltage range of 4V to 34V, allowing for it to be used in  
applications where input voltage transients may be present.  
Built-in safety features include over-current protection, fre-  
quency foldback protection, and thermal shutdown.  
• Cable modems  
The MIC4690 is available in an 8-lead SO package with a  
• Positive-to-negative converters  
• Simple battery chargers  
junction temperature range of –40°C to +125°C.  
Typical Application  
Power  
SOP-8  
2.5V Adjustable Converter  
µ
Power  
SOP-8  
µ
µ
1.8V Adjustable Converter  
SuperSwitcher is a trademark of Micrel, Inc.  
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
April 2005  
1
MIC4690  

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