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參數(shù)資料
| 型號： | L4805-L4885-L4892 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | VERY LOWDROP VOLTAGE REGULATORS |
| 中文描述： | 很好LOWDROP電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大小： | 138K |
| 代理商： | L4805-L4885-L4892 |
ABSOLUTE MAXIMUM RATINGS
Symbol
V
I
Parameter
Value
+ 35
- 18
60
Unit
V
V
V
DC Input Voltage
DC Input Reverse Voltage
Transient Input Overvoltages :
Load Dump :
5ms < T
rise
< 10ms,
τ
f
Fall Time Constant = 100ms,
R
source
< 0.5
Field Decay :
5ms < t
fall
< 10ms, R
source
< 10
τ
r
Rise Time Constant = 33ms
Junction and Storage Temperature Range
- 60
V
T
j
, T
stg
- 55 to + 150
°
C
THERMAL DATA
Symbol
R
th j-case
R
th j-amb
Parameter
SOT82
8
100
TO220
4
75
Unit
°
C/W
°
C/W
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Max.
Max.
PIN CONNECTION
(top view)
TEST AND APPLICATION CIRCUIT
Theoutputcapacitorisrequiredforstability.Though
the 100
μ
F shown is the minimum recommended
value, actual size and type may vary depending
upon the application load and temperaturerange.
Capacitoreffectiveseriesresistance(ESR)alsofac-
tors in the IC stability. Since ESR varies from one
brandtothenext,somebenchworkmayberequired
to determine the minimum capacitorvalue to usein
production.Worst-caseis usuallydeterminedatthe
minimum ambient temperature and maximum load
expected.
Output capacitors can be increased in size to any
desired value above the minimum. One possible
purposeof this would be to maintaintheoutputvol-
tagesduringbrief conditions of negativeinputtran-
sients that might be characteristics of a particular
system.
Capacitorsmustalsoberatedatall ambienttempe-
ratureexpectedinthe system.Manyaluminumtype
electrolyticswillfreezeat temperatures less than–
30
°
C, reducing theireffectivecapacitanceto zero.
To maintainregulatorstability downto –40
°
C, ca-
pacitors rated at that temperature (such as tan-
talums) must be used.
Order Codes
TO-220
L4805CV
L4808CV
L4885CV
L4892CV
L4810CV
L4812CV
OutputVoltage
SOT-82
L4805CX
L4808CX
L4885CX
L4892CX
L4810CX
L4812CX
5V
8V
8.5 V
9.2 V
10 V
12 V
L4805-L4808-L4885-L4892-L4810-L4812
2/7
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| L4808-L4810-L4812 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOWDROP VOLTAGE REGULATORS |
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