WLED solutions integrate the advantages of white light LED technology and innovative energy-saving solutions (such as ambient light control lighting), so that they can be applied in a wider range and achieve higher efficiency than ever before. Most existing WLED driver solutions still need to be used in conjunction with voltage boost driver solutions; however, as WLED applications and technologies diversify, the choice of WLED driver solutions is becoming wider and wider. Linear matched current source is such a new solution. The low dropout (LDO) linear WLED driver TPS7510x introduced by Texas Instruments (TI) can be used to drive WLEDs. This application note will compare this new technology with existing boost solutions.
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