AIC1117 Datasheet PDF | Analog Intergrations Corporation

Analog Intergrations Corporation AIC1117

The AIC1117 is a low dropout, three terminals regulator designed to provide output current up to 800mA. The device is available in an adjustable version and fixed output voltage of 1.8V, 2.5V, 2.85V, 3.3V and 5V. The quality of low dropout voltage and fast transient response make this device ideal for low voltage microprocessor applications.

Part No.	AIC1117
Datasheet	AIC1117 Download
Manufacturer	Analog Intergrations Corporation
Description	800mA Low Dropout Positive Adjustable Regulator
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FEATURES

Dropout Voltage 1.2V at 800mA Output Current. Fast Transient Response. Line Regulation, typical at 0.015%. Load Regulation, typical at 0.1%. Current Limiting and Thermal Protection. Adjustable Output Voltage or Fixed at 1.8V, 2.5V, 2.85V, 3.3V, and 5V. Standard 3-Pin Power Packages.

APPLICATIONS

Active SCSI Terminators. Post Regulators for Switching Supplies. Battery Chargers. PC Add-On Card.

DESCRIPTION

Dropout voltage of maximum of 1.4V is guaranteed at 800mA output current. The AIC1117 requires output capacitance of a minimum of 10µF for stability. Built-in output current limiting and thermal limiting provide maximal protection to the AIC1117 against fault conditions. TYPICAL APPLICATION CIRCUIT VIN 3 AIC1117 2 5V VOUT 3.3V C1 + 10µF 1 ADJ VREF RF1 125Ω 1% RF2 205Ω + C2 10µF (Note1) 1% VREF=VOUT - VADJ=1.25V (typ.) VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2 IADJ=55µA (typ.) (1) C1 needed if device is far away from filter capacitors. (2) C2 required for stability. Adjustable Voltag...