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參數(shù)資料
| 型號(hào)： | LX8221-AIDUT |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 211K |
| 代理商： | LX8221-AIDUT |
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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| LX8221-BIDU | Analog IC |
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| LX8221-DIDU | Quad 0.9 Ohm SPST Switch, 4xNC, TSSOP 14-pin |
| LX8221-DIDUT | Quad 0.9 Ohm SPST Switch, 2xNO 2xNC, TSSOP 14-pin |
| LX8221-GIDU | Quad 0.9 Ohm SPST Switch, 2xNO 2xNC, TQFN (3x3mm) 16-pin |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX8221AIDU-TR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Dual 150mA CMOS Low Dropout Regulator |
| LX8221BIDU | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Dual 150mA CMOS Low Dropout Regulator |
| LX8221-BIDU | 功能描述:IC REG LDO 2.5V/ADJ .15A 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式和可調(diào)式 輸出電壓:3.3V，1.25 V ~ 5.7 V 輸入電壓:4.5 V ~ 7 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.1V @ 1A 穩(wěn)壓器數(shù)量:2 電流 - 輸出:1A 電流 - 限制（最?。?1A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-5，DPak（4 引線 + 接片），TO-252AD 供應(yīng)商設(shè)備封裝:PPAK 包裝:管件 其它名稱:497-3576-5 |
| LX8221-BIDUT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LX8221BIDU-TR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Dual 150mA CMOS Low Dropout Regulator |
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