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參數資料
| 型號： | AV1085T |
| 廠商： | Avic Technology |
| 英文描述： | 3A Adjustable Low Dropout Linear Regulator (LDO) |
| 中文描述： | 第3A可調低壓差線性穩壓器（LDO） |
| 文件頁數： | 1/7頁 |
| 文件大小： | 108K |
| 代理商： | AV1085T |
@vic
GENERAL DESCRIPTION
1
3A Adjustable Low Dropout
Linear Regulator (LDO)
AV
1085
TO-252,263,220
MAY-31-2001
The
AV
1085 is a positive and low dropout
three-terminal voltage regulator with 3A out-
put current capability. This device is design-
ed for use in low voltage applications that
offers lower dropout voltage and faster tran-
sient response.
This device is fully protected against over
current faults, over temperature operation,
reversed input polarity, reversed lead insert-
ion, transient voltage spike …etc.
On-Chips trimming the reference voltage to
1% and features the low dropout of maxi-
mum 1.45 volts.
The
AV
1085 Series regulators are available
in the popular industry standard TO-220
TO-263 and TO-252 packages.
FEATURES
z
Very easy to use, it requires only two
external resistors to set the output voltage
z
Low dropout voltage:
1.3V typical at up to 3A
z
Low ground current
z
Fast transient response
z
Current & thermal limiting
z
Line regulation: 0.5% typical
z
Load regulation: 0.5% typical
z
TO-220, TO-263 and TO-252 packages
APPLICATIONS
z
High current microprocessor supplies
z
Low voltage logic supply
z
Powering VGA & sound card
z
Portable instrumentation
z
Constant current regulator
z
Post regulator for switching power supply
TYPICAL APPLICATION
- Basic Adjustable Regulator Circuit -
+
Cin
10uF
R2
+
Cout
10uF
R1
IN
ADJ
OUT
AV
1085
Vin
1. Cin needed if device is far from from filter capacitors.
Iadj
Vo = Vref (1+R2/R1) + Iadj x R2
Vout
Vref
2. Cout required for stability.
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