4.2-V to 42-V, 1.5-A ultra-small synchronous step-down converter 12-VQFN-HR -40 to 125
Texas Instruments
Texas Instruments - LMR34215FAQRNXRQ1
$1.25 - $2.63
Texas Instruments - LMR34215FAQRNXTQ1
$1.43 - $2.84
Texas Instruments - LMR34215FSC5RNXRQ1
Texas Instruments - LMR34215FSC5RNXTQ1
Texas Instruments - LMR34215SC5QRNXRQ1
$1.25 - $2.77