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MIC5253-3.3BC5TR PDF预览

MIC5253-3.3BC5TR

更新时间： 2024-11-23 12:58:19
品牌 Logo 应用领域
麦瑞 - MICREL 调节器光电二极管输出元件
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MIC5253-3.3BC5TR 数据手册

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MIC5253  
100mA Low Noise µCap Teeny™ LDO  
General Description  
Features  
The MIC5253 is an efficient, CMOS voltage regulator opti-  
mized for ultra-low-noise applications. It offers 1.5% initial  
accuracy, extremely low dropout voltage (165mV at 100mA),  
and low ground current (typically 95µA at full load). The  
MIC5253 provides a very low noise output, ideal for RF  
applications where a clean voltage source is required. A  
noise bypass pin is also available for further reduction of  
output noise.  
• Input voltage range: 2.7V to 5.5V  
• Teeny™ SC-70-5 package  
• Ultra-low output noise: 30µV(rms)  
• 100mA continuous output current, 150mA peak current  
• Stability with ceramic output capacitors  
• Ultralow dropout: 165mV @ 100mA  
• High output accuracy:  
1.5% initial accuracy  
3.0% over temperature  
• Low ground current: 95µA  
• TTL-Logic-controlled enable input  
• “Zero” off-mode current  
• Thermal shutdown and current limit protection  
Designed specifically for handheld and battery-powered de-  
vices, the MIC5253 provides a TTL-logic-compatible enable  
pin.Whendisabled,powerconsumptiondropsnearlytozero.  
The MIC5253 also works with low-ESR ceramic capacitors,  
reducing the amount of board space necessary for power  
applications, critical in handheld wireless devices.  
Applications  
• Cellular phones and pagers  
• Cellular accessories  
• Battery-powered equipment  
• Laptop, notebook, and palmtop computers  
• Consumer/personal electronics  
Available in the Teeny™ SC-70-5 package, the MIC5253  
offers a wide range of output voltages. Key features include  
current limit, thermal shutdown, faster transient response,  
and an active clamp to speed up device turn-off.  
Ordering Information  
Part Number  
Marking Voltage Junction Temp. Range*  
Package  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
MIC5253-1.8BC5  
MIC5253-1.85BC5  
MIC5253-2.6BC5  
MIC5253-2.9BC5  
MIC5253-3.0BC5  
MIC5253-3.3BC5  
LCN  
L71J  
LCP  
L729  
LCG  
L733  
1.8V  
1.85V  
2.6V  
2.9V  
3.0V  
3.3V  
–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  
Other voltages available. Contact Micrel for details.  
Typical Application  
MIC5253-x.xBC5  
VIN  
EN  
VOUT  
CIN = 1.0µF  
1
2
3
5
Ceramic  
COUT = 1.0µF  
Ceramic  
4
Enable  
Shutdown  
EN (pin 3) may be  
connected directly  
to IN (pin 1).  
C
BYP = 0.01µF  
Ultra-Low-Noise Regulator Application  
Teeny is a trademark of Micrel, Inc.  
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-081804  
August 2004  
1
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MIC5253-3.3BC5TR 替代型号

型号 品牌 替代类型 描述 数据表
MIC5253-3.3BC5 MICREL

完全替代

 100mA Low Noise UCap Teeny LDO
MIC5253-3.3YC5TR MICROCHIP

功能相似

 3.3V FIXED POSITIVE LDO REGULATOR, 0.3V DROPOUT, PDSO5, LEAD FREE, SC-70, 5 PIN

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