參數(shù)資料
型號： LX8821
廠商： Microsemi Corporation
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： 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護
文件頁數(shù)： 1/6頁
文件大?。?/td> 257K
代理商： LX8821
P
RODUCTION DATA
S
HEET
Microsemi
Microsemi Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2005
Rev. 1.1, 2005-03-09
W
M
.
C
LX8821
D
UAL
C
HANNEL
2.5A
L
OW
D
ROPOUT
R
EGULATOR
TM
D E S C R I P T I O N
The LX8821 is a positive-voltage
linear regulator with one fixed and
one adjustable output featuring low-
dropout and high accuracy.
To
maximize
LX8821 accepts two supply voltage
inputs for the V
CONTROL
and V
POWER
sections. This configuration reduces
power dissipation by operating the
regulator near dropout (V
PWR
-V
OUT
=
VDO = 0.4V @ 2A) while providing
sufficient operating headroom for the
control logic.
Each channel can supply up to
2.5A independently with a regulator
design
optimized
efficiency by consuming minimal
ground
current
quiescent current to the load
The internal voltage reference is
trimmed at wafer level, enabling
precise output voltages, typically
±
1% of its specified value.
efficiency,
the
for
system
and
directing
Power sequencing logic ensures
proper startup regardless of the
level of V
CTRL
or V
PWR
. The
LX8821 outputs remain off while
V
PWR
< 2.2V.
Thermal
and
Current Protection are integrated
on-chip and operate independently
for each regulator output.
The LX8821 regulator is stable
with a wide range of output
capacitance and ESR; typically
10
μ
F tantalum or ceramic on the
outputs is sufficient.
Microsemi uses a low profile
power package with low thermal
resistance and ease of assembly
using surface mount technology.
Short
Circuit
IMPORTANT: For the most current data, consult Microsemi’s website: http://www.microsemi.com
K E Y F E A T U R E S
Two Independent Regulated
Outputs
Wide DC Supply Voltage of 3.0V to
10.0V
Accurate Output Voltages
Low Tolerance Line (0.5%) and
Load (0.5%) Regulation
Max. Dropout of 0.6V at Rated
Current
Independent Thermal and Current
Limit Protection
Loop Stability Independent of
Output Capacitor
Type SMT Power Package
A P P L I C A T I O N S /B E N E F I T S
ASIC, Memory, I/O
Low Voltage Logic Supplies
Active SCSI Terminators
Battery Charging Circuits
PC Peripherals
Instrumentation
P R O D U C T H I G H L I G H T
Part
V
PWR
V
CONTROL
GND
ADJ
V
OUT2
V
OUT1
V
POWER
10μF
V
CONTROL
1μF
R2
R1
33μF
33μF
GROUND
V
OUT2
V
OUT1
LX8821
R1
I
R2
R1
1
1.25
V
ADJ
OUT2
+
=
P A C K A G E O R D E R I N F O
DF
Plastic S-Pak
7-Pin
RoHS Compliant
LX8821CDF
T
A
(
°
C)
Output V1
Output V2
0 to 100
1.5V
Adjustable
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8821CDF-TR)
L
X
8
8
2
1
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相關代理商/技術參數(shù)
參數(shù)描述
LX8821CDF 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:DUAL CHANNEL 2.5A LOW DROPOUT REGULATOR
LX8940 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:5V Low Dropout Regulator
LX8940_05 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:5V Low Dropout Regulator
LX8940CP 功能描述:IC REG LDO 5V TO220 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.3V @ 80mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:80mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND
LX8940CP-TR 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:5V Low Dropout Regulator
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