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參數(shù)資料
| 型號： | LX8818-01CDT |
| 英文描述： | Low Drop Out Regulator - Positive Adjustable |
| 中文描述： | 低壓降穩(wěn)壓-正，可調(diào) |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 217K |
| 代理商： | LX8818-01CDT |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2000
Rev. 0.3D, 2002-01-08
W
M
.
C
LX8817
Dual Channel 2.5A Low Dropout Regulator
P
RODUCTION
D
ATA
S
HEET
L I N F I N I T Y D I V I S I O N
D E S C R I P T I O N
and directing quiescent current to the load.
The
LX8817
trimming of the internal voltage refer-
ence, enabling precise output voltages,
typically
±
1% of it’s specified value.
Power sequencing logic ensures proper
startup regardless of the level of V
CTRL
or V
PWR
. The LX8817 outputs remain
off while V
PWR
< 2.4V.
Thermal and Short Circuit Current
Protection are integrated on-chip and
operate independently for each regulator
output.
The LX8817 regulator is stable with a
low-value output capacitor, typically
10
μ
F tantalum or ceramic on the
outputs, allowing designers flexibility in
external component selection.
Linfinity’s S-PAK power package
offers maximum power dissipation and
ease of assembly using surface mount
technology.
The LX8817 is a dual channel
positive-voltage linear regulator. This
dual regulator has one fixed output
coupled with an adjustable output.
Each channel features low-dropout
and high accuracy.
The LX8817 utilizes dual inputs that
can be used as separate sources for the
control and power sections. This
configuration reduces power dis-
sipation by operating the regulator
near dropout (V
PWR
-V
OUT
= V
DO
=
0.6V @ 2.5A) while providing
sufficient operating headroom for the
control logic.
The LX8817 provides designers
with an efficient flexible power
management solution, minimal printed
circuit board area, and shorter design
cycles.
Each channel can supply up to 2.5A
independently with a regulator design
optimized for system efficiency by
consuming minimal ground current
IMPORTANT:
For the most current data, consult
MICROSEMI
’s website:
http://www.microsemi.com
features
on-chip
K E Y F E A T U R E S
!
Two Independent Regulated
Outputs
!
Accurate Output Voltages
!
Max. Dropout of 0.6V at Rated
Current
!
Independent Thermal and
Current Limit Protection
!
Low Profile 7 Lead SMT Power
Package
!
Low Tolerance Line (0.2%) and
Load (0.4%) Regulation
!
Wide DC Supply Voltage of 3.0V
to 10.0V
!
Loop Stability Independent of
Output Capacitor Type
APPLICAT IONS /BENEFIT S
!
3.3V to 2.5V/ADJ Linear
Regulator
!
Low Voltage Logic Supplies
!
Active SCSI Terminators
!
Battery Charging Circuits
!
Instrumentation
!
PC Peripherals
P R O D U C T H I G H L I G H T
2
5
6
4
1
3
LX8817
V
PWR
V
1
V
2
V
CTRL
V
CTRL
V
PWR
V
OUT1
V
OUT2
ADJ
V2
GND
PACK AGE ORDER INFO
T
A
(
°
C)
O
UTPUT
V
1
O
UTPUT
V
2
DF
Plastic S-PAK
7-PIN
LX8817-25CDF
0 to 125
2.5V
Adj
Note: Available in Tape & Reel.
Append the letter “T” to the part number. (i.e. LX8817-25CDFT)
L
X
8
8
1
7
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