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器件描述：Dual UCap LDO in 3mm 】 3mm MLF⑩
器件厂商：MICREL [Micrel Semiconductor]
厂商主页：http://www.micrel.com/
文件大小：197.14KB
文件页数：9
PDF阅读：MIC2211-2.5/2.8BML.pdf (点击阅读器件资料)
摘要：
August 2004 1 M9999-080204
MIC2211 Micrel
MIC2211
Dual ?Cap LDO in 3mm × 3mm MLF?
General Description
The MIC2211 is a dual ?Cap, low dropout regulator. The first
regulator is capable of sourcing 150mA, while the second
regulator can source up to 300mA.
Ideal for battery operated applications, the MIC2211 offers
1% accuracy, extremely low dropout voltage (80mV @
100mA), and extremely low ground current, only 48?A total.
Equipped with TTL logic compatible enable pins, the MIC2211
can be put into a zero-off-mode current state, drawing no
current when disabled. Separate enable pins allow individual
control of each output voltage.
The MIC2211 is a ?Cap design, operating with very small
ceramic output capacitors for stability, reducing required
board space and component cost.
The MIC2211 is available in fixed output voltages in the
10-pin 3mm × 3mm MLF? leadless package.
Typical Application
VIN
EN1
OFF ON
OFF ON
EN2
CBYP
Baseband
?Processor
VOUT1 V
I/O
VOUT2
0.01?F
1?F
Ceramic 1?F
V
CORE
GND
MIC2211-xxBML
MIC2211 Typical Cell Phone Application
Features
? Input voltage range: 2.25V to 5.5V
? Stable with ceramic output capacitor
? 2 LDO outputs
? Output 1 - 150mA output current
? Output 2 - 300mA output current
? Low dropout voltage of 80mV @ 100mA
? Ultra-low quiescent current of 48?A total (24?A/LDO)
? High output accuracy:
? +1.0% initial accuracy
? +2.0% over temperature
? Thermal shutdown protection
? Current limit protection
? Tiny 10-pin 3mm × 3mm MLF? package
Applications
? Cellular phones
? Wireless modems
? PDAs
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
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