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LX8221BIDU

更新时间: 2024-02-11 09:23:07
品牌 Logo 应用领域
美高森美 - MICROSEMI 稳压器
页数 文件大小 规格书
9页 219K
描述
Dual 150mA CMOS Low Dropout Regulator

LX8221BIDU 数据手册

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LX8221  
®
TM  
Dual 150mA CMOS Low Dropout Regulator  
P
RODUCTION DATA SHEET  
KEY FEATURES  
DESCRIPTION  
ƒ Compact regulators with  
two 150 mA outputs  
ƒ Dropout Voltage typically  
175mV @ 100mA  
ƒ Ultra low shutdown Current  
typically less than 1µA  
ƒ Output trimmed to 0.5%  
ƒ Small MSOP-10 package  
ƒ Over Current &  
Temperature protection  
ƒ Stable with ceramic or  
tantalum capacitors  
The LX8221 family of dual output  
linear regulators provide for the improved with a minimized operating  
Overall regulator efficiency has been  
selection of either fixed or adjustable  
output voltages, and combine low  
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.  
ground current (typ  
< 140µA per  
regulator). Further, this ground current  
is virtually eliminated in shutdown mode  
(typ < 1µA).  
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.  
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.  
APPLICATIONS  
ƒ Battery Operated Systems  
ƒ Laptop, Notebook and PDA’s  
ƒ Cellular Telephones/pagers  
ƒ Instrumentation  
ƒ Linear post regulators for  
SMPS  
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  
RoHS Compliant / Pb-free  
Transition D/C: 0432  
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  
LX8221AIDU  
LX8221BIDU  
LX8221DIDU  
LX8221GIDU  
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. LX8221AIDU-TR)  
Copyright © 2000  
Rev. 1.0a, 2005-03-03  
Microsemi  
Page 1  
Linfinity Microelectronics Division  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  

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