1.5A LOW DROPOUT VOLTAGE REGULATOR
Description
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1.
5A LOW DROPOUT VOLTAGE REGULATOR (Adjustable & Fixed)
FEATURES
● ● ● ● ● ● ● ● Low Dropout Voltage 500mV at 1.
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
LM1086
SOT-223 PKG (FRONT VIEW)
1
2
3
PIN FUNCTION 1.
Adj/Gnd 2.
Vout 3.
Vin
TO-263 (D2 PKG, FRONT VIEW)
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
PIN FUNCTION 1.
Adj/Gnd 2.
Vout 3.
Vin
1
2
3
ORDERING INFORMATION
Device & Marking LM1086S-XX LM1086T-XX Package SOT 223 TO263 (D2)
DESCRIPTION
(XX=Vout=1.
5V, 2.
5V, 2.
85V, 3.
0V, 3.
3V, 5.
0V
Adjustable= AD)
The LM1086 is a low dropout three terminal regulator with 1.
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
VIN 5V + C1 10㎌ RF2 205Ω 1% 3 2
LM1086
1 ADJ VREF RF1 124Ω 1%
VOUT 3.
33V VREF=VOUT-VADJ=1.
25V(Typ.
) VOUT=VREFx(1+RF2/RF1)+IADJxRF2 IADJ=55㎂(Typ.
) C2 10㎌ (1) C1 Needed if device is far away from filter capacitors.
(2) C2 Required for stability
Adjustable Voltage Regulator
HTC
1
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1.
5A LOW DROPOUT VOLTAGE REGULATOR(ADJ)
ABSOULTE MAXIMUM RATINS
CHARACTERISTIC Supply Voltage Operating Junction Temperature Range Storage Temperature Range Thermal Resistance Junc...
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