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LM1084S-3.0 データシート(PDF) 1 Page - List of Unclassifed Manufacturers

部品番号 LM1084S-3.0
部品情報  5A LOW DROPOUT VOLTAGE REGULATOR (Adjustable & Fixed)
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5A LOW DROPOUT VOLTAGE REGULATOR (Adjustable & Fixed)
LM1084
FEATURES
● Low Dropout Voltage 500mV at 5A 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 LM1084 is a low dropout three terminal regulator with 5A 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
HTC
LM1084T-XX
TO263 (D2)
1
Device & Marking
Package
LM1084S-XX
SOT 223
LM1084
C1
10㎌
VIN
5V
VREF
RF2
205Ω
1%
ADJ
+
3
1
VOUT
3.33V
C2
10㎌
RF1
124Ω
1%
2
1
2
3
SOT-223 PKG (FRONT VIEW)
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
TO-263 (D2 PKG, FRONT VIEW)
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
1
2
3


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