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IC5205BM5

更新时间： 2024-09-25 21:53:55
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
12页 101K
描述
150mA Low-Noise LDO Regulator

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IC5205BM5 数据手册

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MIC5205  
150mA Low-Noise LDO Regulator  
General Description  
Features  
TheMIC5205isanefficientlinearvoltageregulatorwithultra-  
low-noise output, very low dropout voltage (typically 17mV at  
light loads and 165mV at 150mA), and very low ground  
current (600µA at 100mA output). The MIC5205 offers better  
than 1% initial accuracy.  
• Ultra-low-noise output  
• High output voltage accuracy  
• Guaranteed 150mA output  
• Low quiescent current  
• Low dropout voltage  
• Extremely tight load and line regulation  
• Very low temperature coefficient  
• Current and thermal limiting  
• Reverse-battery protection  
• “Zero” off-mode current  
Designedespeciallyforhand-held,battery-powereddevices,  
the MIC5205 includes a CMOS or TTL compatible enable/  
shutdown control input. When shutdown, power consump-  
tion drops nearly to zero. Regulator ground current increases  
only slightly in dropout, further prolonging battery life.  
• Logic-controlled electronic enable  
Key MIC5205 features include a reference bypass pin to  
improve its already excellent low-noise performance, re-  
versed-battery protection, current limiting, and  
overtemperature shutdown.  
Applications  
• Cellular telephones  
• Laptop, notebook, and palmtop computers  
• Battery-powered equipment  
The MIC5205 is available in fixed and adjustable output  
voltage versions in a small SOT-23-5 package.  
• PCMCIA V and V regulation/switching  
CC  
PP  
• Consumer/personal electronics  
• SMPS post-regulator/dc-to-dc modules  
• High-efficiency linear power supplies  
For low-dropout regulators that are stable with ceramic  
output capacitors, see the µCap MIC5245/6/7 family.  
Ordering Information  
Part Number  
Marking Voltage  
Accuracy  
1%  
Junction Temp. Range*  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
Package  
MIC5205BM5  
LBAA  
LB25  
LB27  
LB28  
LB2J  
LB29  
LB30  
LB33  
LB36  
LB38  
LB40  
LB50  
Adj  
2.5V  
2.7V  
2.8V  
2.85V  
2.9V  
3.0V  
3.3V  
3.6V  
3.8V  
4.0V  
5.0V  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
SOT-23-5  
MIC5205-2.5BM5  
MIC5205-2.7BM5  
MIC5205-2.8BM5  
MIC5205-2.85BM5  
MIC5205-2.9BM5  
MIC5205-3.0BM5  
MIC5205-3.3BM5  
MIC5205-3.6BM5  
MIC5205-3.8BM5  
MIC5205-4.0BM5  
MIC5205-5.0BM5  
1%  
1%  
1%  
1%  
1%  
1%  
1%  
1%  
1%  
1%  
1%  
Other voltages available. Contact Micrel for details.  
Typical Application  
MIC5205-x.xBM5  
VIN  
VOUT  
1
2
3
5
COUT = 2.2µF  
tantalum  
4
Enable  
Shutdown  
Low-Noise Operation:  
BYP = 470pF, COUT ≥ 2.2µF  
EN  
EN (pin 3) may be  
connected directly  
to IN (pin 1).  
CBYP  
C
Basic Operation:  
CBYP = not used, COUT ≥ 1µF  
Ultra-Low-Noise Regulator Application  
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com  
June 2000  
1
MIC5205  
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