V-Ref Adjustable 2.495V to 37V 100mA 8-Pin SOIC N T/R
Texas Instruments
Texas Instruments - LM431BCM
$0.24 - $1.00
Texas Instruments - LM431CCM3
$0.89 - * $1.00
Texas Instruments - LM431AIM3X
$0.59 - $0.41