LM1086

1.5A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed) FEATURES ● ● ● ● ● ● ● ● ● ● Output Current of 1.5A Fast Transient Response 0.04% Line Regulation 0.2% Load Regulation Internal Thermal and Current Limiting Adjustable or Fixed Output Voltage(1.5V, 1.8V, 2.5V, 3.3V, 5.0V) Surface Mount Package TO252-3LD & TO-263-3LD 100% Thermal Limit Burn-in Low Dropout Voltage 1.5V at 1.5A Output Current Moisture Sensitivity Level 3 LM1086 TO-263 PKG 1 3 TO-252 PKG 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 1 3 1. Adj/Gnd 2. Output 3. Input ORDERING INFORMATION Device Name LM1086R-XX LM1086RS-XX Adjustable) Package TO263-3LD TO252-3LD (XX=Vout=1.5V, 1.8V, 2.5V, 3.3V, 5.0V, DESCRIPTION The LM1086 is a low dropout three terminal regulators 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 LM1086 3.3V LM1086 ADJ Note (1) C1 Needed if device is far away from filter capacitors. (2) C2 minimum value required for stability VREF=VOUT-VADJ=1.25V(Typ.) VOUT=VREFx(1+RF2/RF1)+IADJxRF2 IADJ=55㎂(Typ.) Apr. 2009 - Rev1.1 HTC -1 - 1.5A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed) BLOCK DIAGRAM LM1086 ABSOULTE MAXIMUM RATINS CHARACTERISTIC Supply Voltage Operating Junction Temperature Range Storage Temperature Range Thermal Resistance Junction to Case TO-263 Thermal Resistance Junction to Ambient TO-263 Lead Temperature (Soldering) 10 sec. Maximum Output Current SYMBOL Vin Topr Tstg Tjc Tja Tsol Imax VALUE 12 0 ~ 125 -65~150 3 60 300 1.5 UNIT V ℃ ℃ C/W C/W ℃ A HTC -2- 1.5A L.D.O. VOLTAGE REGULATOR (Adjustable & Fixed) ELECTRICAL CHARACTERISTICS I PARAMETER 1.5V Version Output Voltage 1.8V Version Output Voltage 2.5V Version Output Voltage 3.3V Version Output Voltage 5.0V Version Output Voltage All Voltage Options VIN≤7V,P≤PMAX Reference Voltage (V REF) 1.5V≤(VIN- OUT)≤5.75V, 10㎃≤IOUT≤1.5A V Min. Load Current(Note 3) Line Regulation (ΔV REF(VIN)) Load Regulation (ΔV REF(VOUT)) Dropout Voltage Current Limit IOUT(MAX) Long Term Stability Thermal Regulation TA=25℃, 30㎳ pulse (ΔVOUT(Pwr)) Output Noise, RMS 10Hz to 10Khz TA=25℃ Junction to Tab Thermal Resistance Junction to Ambient 0.003 0.01 1.5V≤(VIN- OUT)≤5.75V V 2.75V≤VIN≤7V, IOUT=10㎃, TJ=25℃ 10㎃≤IOUT≤1.5A,(VIN-VOUT)=3V,TJ=25℃ ΔVREF=1% , Iout=1.5A Vin-Vout=3V 1.7 1.4V≤(VIN-VOUT) Adjustable Only TA=125℃, 1000Hrs 0.3 2.5 1.225 1.25 5 0.005 0.05 1.3 1.225 1.25 0≤IOUT≤1.5A, 5.5V≤VIN 4.95 5 0