1.5A LOW DROPOUT VOLTAGE REGULATOR (Adjustable Fixed) LM1086 handbook
Contents
1. 5 75V 10M lt lour lt 1 5A 1 5V lt VnVou 5 75V 1 OmA lt lourS 1 5A Vn Vou 3V T 25 G AVe 1 lout 1 5A Vin Vout 3V 1 AVS Vin Voud Adjustable Only i Ta 125C 1000Hrs 1 Oooo a ae Ta 25 C 30ms pulse 10Hz to 10Khz T 25 C 0 003 Junction to Tab a Junction to Ambient i i i HTC2. O 0 LM 10865 1 5 9 0O 1 5A LOW DROPOUT VOLTAGE REGULATOR Adjustable amp Fixed LM1086 FEATURES Low Dropout Voltage 500mvV 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 amp 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 amp Sound Card DESCRIPTION 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 ORDERING INFORMATION T0263 D2 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 temperat
3. ure TEST amp TYPICAL APPLICATION CIRCUIT Adjustable Voltage Regulator Vre Vout Vao 25V Typ Vout Vrerx 1 RF2 RF1 lapsxRF2 lao 554A Typ 1 C1 Needed if device is far away from filter capacitors 2 C2 Required for stability HTC 1 54 LOW DROPOUT VOLTAGE REGULATOR ADJ LM1086 ABSOULTE MAXIMUM RATINS CHARACTERISTIC Supply Voltage Operating Juncti on Temperature Range Storage Temper ature Range Thermal Resista nce Junction to Case TO 263 Thermal Resista nce Junction to Ambient TO 263 Lead Temperatu re Soldering 10 sec Maximum Outpu t Current ELECTRICAL CHARACTERISTICS our 100mA T 25 C unless otherwise specified PARAMETER TEST CONDITIONS UNIT 1 5V Version Output Voltage O lt louxKK1 5A 2 75V lt Vin lt 7V 1 485 1 515 2 5V Version Outpu Voltage 2 85V Version Outpu Voltage 3 0V Version Outpu Voltage 3 3V Version pene i ae D ii A 5 0V Version Output Voltage OSloyt S1 5A 5 5VEVin lt 7V All Voltage Options Reference Voltage Vpep Min Load Current Note 3 Dropou Current lourl Voltage Limit AX Long Term Stability Therma Regulation AVourlPwr Output Therma oise RMS Resistance 0 lt lou lt 1 5A 3 5V lt Viy lt 7V 2 475 2 525 0 lt lou lt 1 5A 4 35V lt Vin lt 7V 2 822 2 879 ie i dl oe VinS7V PSPmax 1 5VS VinVour
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1.5A LOW DROPOUT VOLTAGE REGULATOR (Adjustable Fixed) LM1086 handbook