KIA1117-3.3

KIA 1A LOW DROPOUT FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS 1117 SERIES SEMICONDUCTORS 1.Description The KIA1117 series of positive adjustable and fixed regulators is designed to provide 1A for applications requiring high efficiency.All internal circuitry is designed to operated down to 800mA input to output differential and the dropout voltage is fully specified as a function of load current. The KIA1117 offers current limiting and thermal protection.The on chip trimming adjusts the reference voltage accuracy to 2%. 2.Features Output current of 1A typical Three-terminal adjustable or fixed 1.5V,1.8V,2.5V,2.85V,3.0V,3.3V,5.0V outputs Thermal protection built in Fast transient response 3.Applications PC motherboard LCD monitor DVD-Video player NIC/switch Telecom equipment High efficiency linear regulator Printer and other peripheral equipment Battery charger 4.Pinning information Table1: Pinning-SOT223,simplified outline Pin Description 1 ADJ/GND 2 VOUT 3 VIN Simplified outline 2 3 1 (SOT223 Front View) 9396 850 1656 Product data KIA semiconductors All right reserved Rev.01-11 April 2005 1 of 4 KIA 1A LOW DROPOUT FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS 1117 SERIES SEMICONDUCTORS 5.Package information 2.5K/Reel 5K/Box 40K/CTN 6.Maximum ratings(Ta=25oC) Table2: Maximum ratings Parameter Symbol Rating Unit V Input voltage VIN 12 Operating junction temperature TJ 0~+125 o Storage temperature range TSTG -40~150 o C C 7.Typical application Table3: Typical application VIN KIA1117-ADJ IN GND CIN 10uF VOUT OUT VREF R1 120 VIN>9.0V VOUT=7.5V OUT GND COUT 100uF CIN 10uF VOUT= VRE F (1+ R2/R1)+IADJR2 Application 1:1.25V to 10V Adjustable Regulator COUT 100uF 2.5V R2 1K VOUT=7.5V Application 2:Regulator with reference KIA semiconductors All right reserved 9396 850 1656 Product data KIA1117-5.0V IN Rev.01-11 April 2005 2 of 4 KIA 1A LOW DROPOUT FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS 1117 SERIES SEMICONDUCTORS 8.Electrical characteristics Table4: Electrical characteristics ( VIN=10V,IOUT=40mA,CIN=0.33uF, COUT=0.1uF,TJ=25 oC ,Unless otherwise noted) Symbol Parameter Condition IOUT=10mA,VIN-VOUT =1.5V Reference voltage VREF 10mA