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MIC5219-2.85YM5 PDF预览

MIC5219-2.85YM5

更新时间： 2024-11-26 10:56:55
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器调节器光电二极管输出元件
页数 文件大小 规格书
14页 385K
描述
500mA-Peak Output LDO Regulator

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MIC5219-2.85YM5 数据手册

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MIC5219  
500mA-Peak Output LDO Regulator  
General Description  
Features  
The MIC5219 is an efficient linear voltage regulator with high  
peak output current capability, very-low-dropout voltage, and  
better than 1% output voltage accuracy. Dropout is typically  
10mV at light loads and less than 500mV at full load.  
• 500mA output current capability  
SOT-23-5 package - 500mA peak  
®
2mm×2mm MLF package - 500mA continuous  
®
2mm×2mm Thin MLF package - 500mA  
continuous  
TheMIC5219isdesignedtoprovideapeakoutputcurrentfor  
start-upconditionswherehigherinrushcurrentisdemanded.  
It features a 500mA peak output rating. Continuous output  
current is limited only by package and layout.  
MSOP-8 package - 500mA continuous  
• Low 500mV maximum dropout voltage at full load  
• Extremely tight load and line regulation  
• Tiny SOT-23-5 and MM8™ power MSOP-8 package  
• Ultra-low-noise output  
• Low temperature coefficient  
• Current and thermal limiting  
• Reversed-battery protection  
• CMOS/TTL-compatible enable/shutdown control  
• Near-zero shutdown current  
The MIC5219 can be enabled or shut down by a CMOS or  
TTL compatible signal. When disabled, power consumption  
drops nearly to zero. Dropout ground current is minimized to  
helpprolongbatterylife.Otherkeyfeaturesincludereversed-  
batteryprotection,currentlimiting,overtemperatureshutdown,  
and low noise performance with an ultra-low-noise option.  
The MIC5219 is available in adjustable or fixed output volt-  
®
Applications  
• Laptop, notebook, and palmtop computers  
• Cellular telephones and battery-powered equipment  
• Consumer and personal electronics  
ages in the space-saving 6-pin (2mm × 2mm) MLF , 6-pin  
®
®
(2mm × 2mm) Thin MLF SOT-23-5 and MM8 8-pin power  
MSOP packages. For higher power requirements see the  
MIC5209 or MIC5237.  
• PC Card V and V regulation and switching  
• SMPS post-regulator/DC-to-DC modules  
• High-efficiency linear power supplies  
All support documentation can be found on Micrel’s web site  
at www.micrel.com.  
CC  
PP  
Typical Applications  
MIC5219-5.0BMM  
1
2
3
4
8
7
6
5
ENABLE  
SHUTDOWN  
MIC5219-3.3BM5  
VIN 6V  
VOUT5V  
1
2
3
5
VIN 4V  
VOUT3.3V  
2.2µF  
tantalum  
4
ENABLE  
SHUTDOWN  
2.2µF  
tantalum  
470pF  
470pF  
5V Ultra-Low-Noise Regulator  
3.3V Ultra-Low-Noise Regulator  
VOUT  
VOUT  
COUT  
VIN  
EN  
VIN  
EN  
MIC5219YMT  
MIC5219-x.xYML  
+
ENABLE  
SHUTDOWN  
ENABLE  
SHUTDOWN  
R1  
R2  
6
1
6
5
4
1
2
3
CBYP  
(optional)  
2.2µF  
5
4
2
3
470pF  
Ultra-Low-Noise Regulator (Adjustable)  
Ultra-Low-Noise Regulator (Fixed)  
MM8 is a registered trademark of Micrel, Inc.  
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, 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  
June 2009  
1
M0371-061809  
1234567...14

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