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MIC2238-SSYMLTR PDF预览

MIC2238-SSYMLTR

更新时间： 2024-09-29 13:02:31
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
16页 787K
描述
1.8A DUAL SWITCHING CONTROLLER, 2875kHz SWITCHING FREQ-MAX, PDSO12, 3 X 3 MM, GREEN, MLF-12

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MIC2238-SSYMLTR 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON,
针数：12Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.64其他特性：ALSO HAS PFM CTRL TECHNIQUE
模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：2.5 V标称输入电压：3.6 V
JESD-30 代码：S-PDSO-N12JESD-609代码：e4
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：12
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：1.8 A标称输出电压：3.3 V
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：Not Qualified座面最大高度：0.9 mm
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：2875 kHz温度等级：AUTOMOTIVE
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
宽度：3 mmBase Number Matches：1

MIC2238-SSYMLTR 数据手册

 浏览型号MIC2238-SSYMLTR的Datasheet PDF文件第2页浏览型号MIC2238-SSYMLTR的Datasheet PDF文件第3页浏览型号MIC2238-SSYMLTR的Datasheet PDF文件第4页浏览型号MIC2238-SSYMLTR的Datasheet PDF文件第5页浏览型号MIC2238-SSYMLTR的Datasheet PDF文件第6页浏览型号MIC2238-SSYMLTR的Datasheet PDF文件第7页 
MIC2238  
Dual Synchronous 800mA/800mA  
Step-Down DC/DC Regulator  
General Description  
Features  
The MIC2238 is dual output, High-efficiency synchronous  
step-down DC/DC converter. The MIC2238 is ideally  
suited for portable systems which demand high power  
conversion efficiencies while offered in a very small  
package. The MIC2238 offers an ultra-low quiescent  
current in light load mode assuring minimum current draw  
from battery powered applications in standby modes. The  
MIC2238 was designed for use of miniature 2.2µH  
inductors and 2.2µF ceramic capacitors.  
• High Efficiency: Up to 95%  
• Ultra-low quiescent current: Only 28µA  
• Ultra-low shutdown current less than 1µA  
• 2.5MHz PWM operation  
• High output current capability per channel: 800mA  
• No Schottky Diodes Required  
• Stable with 2.2µH inductor, 2.2µF ceramic capacitor  
• Adjustable output voltage down to 0.8V  
• Built-in soft-start circuitry  
The MIC2238 features a selectable mode that allows the  
user to trade-off lowest noise performance for low power  
efficiency. Trickle mode operation provides ultra-high  
efficiency at light loads, while PWM operation provides  
very low ripple noise performance. To maximize battery life  
in low-dropout conditions, MIC2238 can operate with a  
maximum duty cycle of 100%.  
• Current limit protection  
• Automatic switching into light load mode operation  
• /FPWM pin allows low noise all-PWM mode operation  
• Power good output with internal 5µA current source  
allows sequencing with programmable delay time  
The MIC2238 is available in a space-saving 3mm × 3mm  
MLF®-12L package with a junction temperature range from  
–40°C to +125°C.  
• Small Thermally Enhanced 3mm × 3mm MLF® package  
Applications  
Data sheets and support documentation can be found on  
Micrel’s web site at www.micrel.com.  
• Cellular phones  
• PDAs  
• Digital Cameras  
• MP3 Players  
• PC Cards  
• Wireless and DSL Modems  
___________________________________________________________________________________________________________  
Typical Application  
MLF and MicroLead Frame are registered trademarks of Amkor Technologies  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-071307  
July 2007  
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