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參數資料
| 型號： | LX8630-33CP |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSFM3 |
| 封裝： | PLASTIC, TO-220, 3 PIN |
| 文件頁數： | 1/9頁 |
| 文件大小： | 135K |
| 代理商： | LX8630-33CP |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2000
Rev. 1.0a,2000-11-28
W
M
.
LX8630-xx
3A BiCMOS Very Low Dropout Regulators
P
RODUCTION
D
ATA
S
HEET
A M I C R O S E M I C O M P A N Y
The LX8630 family are positive very
low dropout regulators.
They are
designed to provide a power supply for
very low headroom applications, such as
3.3V – 2.5V.
BiCMOS
technology
effective series pass element resistance,
R
DS(ON)
of 150m
dropout voltage of 450mV at 3A.
Low Quiescent Current and Logic-
Controlled Shutdown
help conserve
battery life and increase system efficiency.
Typical quiescent current is under 400 A
irrespective of load current, while the
IMPORTANT:
For the most current data, consult
MICROSEMI
s website:
http://www.microsemi.com
allows
an
Shut
device will enter shutdown mode when the
SHDN pin is pulled low.
Thermal and Short-Circuit Current
Limiting:
the LX8630 limits the current
when the output is shorted, protecting the
sensitive load circuits. The device will
also turn off if the junction temperature
exceeds 150
°
Available in Popular TO-220 and
TO-263 Power Packages:
adjustable
versions have five leads, and fixed output
voltage devices are supplied in three lead
packages.
Dropout Voltage Typically
450mV at 3A and 50mV at
10mA
Low Quiescent Current,
Typically Under 400μA,
irrespective of Load
Shutdown Current 10μA
Adjustable Output Version in
5-Pin TO-220 & TO-263
Packages
Low Reverse Leakage
Current
Short-Circuit and Thermal
Shutdown Protection
3.3V & 2.5V Supplies for
Memory, Microprocessors,
Clock Circuits, Etc.
Portable Equipment
* Adjustable 5 lead version only
Reverse
Voltage
Sense
Thermal
Shutdown
V
IN
GND
ADJ*
V
OUT
Current
Limit
Charge
Pump
R
A
R
B
LX8630-xx Simplified Block Diagram
1.25V
Reference
Current
V
IN
/2
LX8630-00
LX8630-25
LX8630-33
25K
25K
41K
25K
R
A
-
R
B
-
SHDN*
+
-
T
A
(
°
C)
Output
Voltage
3.3
2.5
ADJ(00)
P
Plastic TO-220
3-Pin
LX8630-33CP
LX8630-25CP
-
P
Plastic TO-220
5-Pin
-
-
LX8630-00CP
Note: Available in Tape & Reel.
Append the letter “T” to the part number. (i.e. LX8630-33CDDT)
DD
LX8630-33CDD
LX8630-25CDD
Plastic TO-263
3-Pin
DD
Plastic TO-263
5-Pin
-
-
LX8630-00CDD
0 to 125
-
L
X
8
6
3
0
-
X
X
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