DC DC Cntrlr Single-OUT Step Down 4.2V to 35V Input 8-Pin SOIC Tube
Texas Instruments
Texas Instruments - UC2573NG4
$1.99
Texas Instruments - UC2573DTR
$1.55 - $2.36
Texas Instruments - UC2573N
$1.00 - * $2.71
Texas Instruments - UC2573
$1.00 - $3.80
Texas Instruments - UC2573D
$1.75 - $3.80
Texas Instruments - UC2573DTRG4
$1.42 - $1.49