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LX8221-DIDUX

更新时间： 2024-02-11 03:39:02
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美高森美 - MICROSEMI 稳压器
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9页 196K
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LX8221-DIDUX 数据手册

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LX8221  
®
TM  
Dual 150mA CMOS Low Dropout Regulator  
PRODUCTION DATA SHEET  
KEY FEATURES  
DESCRIPTION  
ƒ Compact Regulators With  
Two 150mA 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 &  
The LX8221 family of dual output  
Overall regulator efficiency has been  
linear regulators provide for the improved with a minimized operating  
selection of either fixed or adjustable ground current (typical < 140µA per  
output voltages, and combine low regulator). Further, this ground current  
dropout operation, fast transient is virtually eliminated in shutdown mode  
performance, tight output voltage (typical < 1µA).  
accuracy, and ultra-low ground current  
within a very small package footprint.  
Other safety features include channel  
independent Thermal and Short Circuit  
The PMOS output transistor allows Current protection.  
Temperature Protection  
ƒ Stable with Ceramic or  
Tantalum Capacitors  
for an ultra-low dropout characteristic  
Separate Enable pins allow each  
(e.g., typically less than 175mV at regulator to be switched on and off  
100mA). The individual regulators can independently by applying a TTL logic  
be powered from either separate supply level control signal to the Enable pin  
voltages or the same supply voltage further enhancing system level power  
between 2.8V to 6V allowing for management.  
APPLICATIONS  
ƒ Battery Operated Systems  
ƒ Laptop, Notebook and PDA’s  
ƒ Cellular Telephones/Pagers  
ƒ Instrumentation  
ƒ Linear Post Regulators for  
SMPS  
maximum system flexibility.  
These features combined with a small  
An optional ceramic or tantalum type footprint (i.e., 10-pin MSOP package)  
capacitor may be connected to each make the LX8221 especially useful for  
Bypass pin separately to improve battery-operated equipment such as  
performance in critical low-noise cellular telephones, laptop computers  
applications.  
and PDA equipment.  
IMPORTANT: For the most current data, consult Microsemi’s website: http://www.microsemi.com  
PRODUCT HIGHLIGHT  
5.0V  
3.3V  
5.0V  
To Control Logic  
On  
N/C  
N/C  
To Control Logic  
On  
VIN2  
VIN1  
CB1  
ADJ  
VIN2  
VIN1  
CB1  
ADJ  
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  
TA (°C)  
DU  
-40 to 85  
-40 to 85  
-40 to 85  
-40 to 85  
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 letters “TR” to the part number. (i.e. LX8221AIDU-TR)  
Copyright © 2000  
Rev. 1.1a, 2006-01-19  
Microsemi  
Integrated Products Division  
Page 1  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
1234567...9

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