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LM1085T-X.X Folha de dados(PDF) 1 Page - List of Unclassifed Manufacturers

Nome de Peças LM1085T-X.X
Descrição Electrónicos  3A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed)
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Fabricante Electrônico  ETC2 [List of Unclassifed Manufacturers]
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3A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed)
LM1085
FEATURES
● Low Dropout Voltage 500mV at 3A Output Current
● Fast Transient Response
● 0.015% Line Regulation
● 0.1% Load Regulation
● Internal Thermal and Current Limiting
● Adjustable or Fixed Output Voltage(1.5, 2.5, 2.85, 3.0, 3.3, 5.0V)
● Surface Mount Package SOT-223 & TO-263 (D2 Package)
● 100% Thermal Limit Burn-in
APPLICATIONS
● Battery Charger
● Adjustable Power Supplies
● Constant Current Regulators
● Portable Instrumentation
● High Efficiency Linear Power Supplies
● High Efficiency "Green" Computer Systems
● SMPS Post-Regulator
● Power PC Supplies
● Powering VGA & Sound Card
ORDERING INFORMATION
DESCRIPTION
(XX=Vout=1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 5.0V
Adjustable= AD)
The LM1085 is a low dropout three terminal regulator with 3A output current capability.
The output voltage is adjustable with the use of a resistor divider. Dropout is guaranteed at a maximum
of 500 mV at maximum output current.
It's low dropout voltage and fast transient response make it ideal for low voltage microprocessor
applications. Internal current and thermal limiting provides protection against any overload condition
that would create excessive junction temperature.
TEST & TYPICAL APPLICATION CIRCUIT
VREF=VOUT-VADJ=1.25V(Typ.)
VOUT=VREFx(1+RF2/RF1)+IADJxRF2
IADJ=55㎂(Typ.)
(1) C1 Needed if device is far away
from filter capacitors.
(2) C2 Required for stability
Adjustable Voltage Regulator
Mar. 2006 - Rev 06
HTC
LM1085R-X.X
TO263 (D2)
84
Device & Marking
Package
LM1085T-X.X
TO-220
LM1085
C1
10㎌
VIN
5V
VREF
RF2
205Ω
1%
ADJ
+
3
1
VOUT
3.33V
C2
10㎌
RF1
124Ω
1%
2
1. Adj/Gnd
2. Output
3. Input
TO-220 PKG
TO-263 PKG


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