DESCRIPTION

The UTC  LR18113 is a low output resistance 1.6X positive

voltage linear fan driver with very low dropout voltage at up to

500mA. The UTC  LR18113 consists of an error amplifier, output

stage, voltage divider, over temperature protection, current limiting

scheme and Enable Control logic. VOUT voltage follows the 1.6 times

of VSET voltage until it reaches VIN voltage. The VSET voltage must be

larger than 1V to guarantee VOUT 1.6 times of VSET. Good regulation

over variation in line, load and temperature is also provided by UTC

LR18113.

FEATURES

* VOUT Follows 1.6 Times of VSET

* 0.3Ω Output Resistance @ 0.5A

* Over Temperature Protection  

* Current Limiting Protection

* Enable control