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參數(shù)資料
| 型號： | LX8221-DIDU |
| 英文描述： | Quad 0.9 Ohm SPST Switch, 4xNC, TSSOP 14-pin |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 211K |
| 代理商： | LX8221-DIDU |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
2000
Rev. 1.0, 2002-01-02
W
M
.
C
LX8221
Dual 150mA CMOS Low Dropout Regulator
P
RODUCTION
A P P L I C A T I O N S
be calculated using the following equation:
(
(
IN
D
V
P
=
(Note: power dissipation resulting from quiescent current
is negligible)
For the MSOP package, thermal resistance,
θ
JA
is 220
0
C/W
when mounted on a FR4 copper clad PCB. Junction
temperature of the integrated circuit can be calculated
using:
T
T
=
Where:
(
RISE
P
T
=
Example
: Given the following conditions:
!
T
A
= 60°C
!
V
IN
= 4.2V
!
V
OUT
= 2.7V
!
I
OUT
= 100mA
)
)
(
)
(
)
MAX
OUT
MIN
OUT
V
MAX
I
×
RISE
T
A
J
+
)
JA
D
Θ
×
calculate the
total power dissipation
and
junction
temperature:
Total Power Dissipation:
(
V
7
V
2
P
D
=
Junction Temperature:
(
W
C
T
J
15
.
60
×
+
=
Layout Consideration:
The layout must be implemented with low impedance paths
for V
IN
, V
OUT
and Ground by creating sufficiently wide
traces to avoid voltage drops and pick up noise. Adding an
area of PCB copper to the GND pin (pin 8) will reduce the
overall
θ
JA
since it is thermally connected to the device
substrate. This will lower the device junction temperature
improving overall output voltage accuracy. The input/output
capacitors must be placed as close as possible to each
voltage regulator output pin.
)
W
15
.
A
1
×
=
)
C
W
C
o
o
o
93
/
220
=
A
P
P
L
I
C
A
T
I
O
N
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX8221-DIDUT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LX8221DIDU-TR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Dual 150mA CMOS Low Dropout Regulator |
| LX8221GIDU | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Dual 150mA CMOS Low Dropout Regulator |
| LX8221-GIDU | 功能描述:IC REG LDO 3V/ADJ .15A 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓模塊:MIC5365/66 Ultra-small LDO Regulators 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:3V 輸入電壓:最高 5.5V 電壓 - 壓降（標準）:0.155V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?200mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:4-UDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1x1） 包裝:Digi-Reel® 其它名稱:576-3192-6 |
| LX8221-GIDUT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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