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LX8221-AIDU PDF预览

LX8221-AIDU

更新时间： 2024-01-15 12:24:26
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其他 - ETC 模拟IC
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9页 211K
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Analog IC

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LX8221-AIDU 数据手册

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LX8221  
Dual 150mA CMOS Low Dropout Regulator  
PRODUCTION  
KEY FEATURES  
DESCRIPTION  
The LX8221 family of dual output Overall regulator efficiency has been  
ꢀ Compact regulators with  
two 150 mA outputs  
linear regulators provide for the improved with a minimized operating  
ꢀ Dropout Voltage typically  
selection of either fixed or adjustable  
output voltages, and combine low  
ground current (typ  
< 140µA per  
175mV @ 100mA  
regulator). Further, this ground current  
is virtually eliminated in shutdown mode  
(typ < 1µA).  
ꢀ Ultra low shutdown Current  
typically less than 1µA  
ꢀ Output trimmed to 0.5%  
ꢀ Small MSOP-10 package  
ꢀ Over Current &  
Temperature protection  
ꢀ Stable with ceramic or  
tantalum capacitors  
dropout  
operation,  
fast  
transient  
performance, tight output voltage  
accuracy, and ultra-low ground current  
within a very small package footprint.  
The PMOS output transistor allows  
for an ultra-low dropout characteristic  
(e.g., typically less than 175mV at  
100mA). The individual regulators can  
be powered from either separate supply  
voltages or the same supply voltage  
between 2.8V to 6V allowing for  
maximum system flexibility.  
Other safety features include channel  
independent Thermal and Short Circuit  
Current protection.  
Separate Enable pins allow each  
regulator to be switched on and off  
independently by applying a TTL logic  
level control signal to the Enable pin  
further enhancing system level power  
management.  
APPLICATIONS  
ꢀ Battery Operated Systems  
ꢀ Laptop, Notebook and PDA’s  
ꢀ Cellular Telephones/pagers  
ꢀ Instrumentation  
ꢀ Linear post regulators for  
SMPS  
These features combined with a small  
footprint (i.e., 10-pin MSOP package)  
make the LX8221 especially useful for  
battery-operated equipment such as  
cellular telephones, laptop computers  
and PDA equipment.  
An optional ceramic or tantalum type  
capacitor may be connected to each  
Bypass pin separately to improve  
performance in critical low-noise  
applications.  
IMPORTANT: For the most current data, consult MICRO Semi’s website: http://www.microsemi.com  
PRODUCT HIGHLIGHT  
5.0V  
3.3V  
5.0V  
N/C  
To Control Logic  
On  
N/C  
To Control Logic  
On  
VIN2  
VIN1  
CB1  
ADJ  
VIN2  
VIN1  
ADJ1  
ADJ2  
EN1  
EN2  
EN1  
EN2  
}
}
Off  
Off  
3.3V  
VOUT1  
VOUT2  
VOUT1  
VOUT2  
GND  
GND  
R1  
R2  
R1  
R2  
R2  
R1  
Fixed / Adjustable Application  
Adjustable / Adjustable Application  
PACKAGE ORDER INFO  
Plastic MSOP  
10-Pin  
VOUT1  
VOUT2  
Package Marking  
TJ (°C)  
DU  
-40 to 125  
-40 to 125  
-40 to 125  
-40 to 125  
Adjustable  
2.5V  
Adjustable  
Adjustable  
Adjustable  
Adjustable  
LX8221-AIDU  
LX8221-BIDU  
LX8221-DIDU  
LX8221-GIDU  
8221 AIDU LX  
8221 BIDU LX  
8221 DIDU LX  
8221 GIDU LX  
2.7V  
3.0V  
Contact Microsemi for additional / available options  
Note: Available in Tape & Reel.  
Append the letter “T” to the part number. (i.e. LX8221-AIDUT)  
Copyright 2000  
Rev. 1.0, 2002-01-02  
Microsemi  
Page 1  
Linfinity Microelectronics Division  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
1234567...9

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