AIC1086

AIC1086 1.5A Low Dropout Positive Adjustable Regulator n FEATURES l l l l l l n DESCRIPTION The AIC1086 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 or fixed 2.85V, 3.3V, 5V. Dropout is guaranteed at a maximum of 1.5V at maximum output current. Its 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 temperatures. Dropout Voltage 1.3V at 1.5A Output Current. Fast Transient Response. Line Regulation typically at 0.015%. Load Regulation typically at 0.1%. Internal Thermal and Current Limiting. Adjustable Output Voltage or Fixed 2.85V, 3.3V, 5V. Standard 3-Pin Power Packages. l n APPLICATIONS l l l l Post Regulator for Switching Supply. Battery Chargers. Constant-Current Regulators. PC Add-On Card. n TYPICAL APPLICATION CIRCUIT VIN 5V C1 + 10µF 3 AIC1086 1 ADJ 2 VREF VREF=VOUT - VADJ=1.25V (typ.) VOUT 3.3V VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2 IADJ=55 µA (typ.) (1) C1 needed if device is far away from filter capacitors. (2) C2 required for stability. RF1 125Ω 1% + C2 RF2 10µF 205Ω 1% Adjustable Voltage Regulator VIN 5V C1 + 10µF AIC1086-33 VOUT 3.3V + C2 10µF GND Fixed Voltage Regulator Analog Integrations Corporation DS-1086-00 May 16, 00 4F, 9, Industry E. 9th Rd, Science Based Indust...