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LM3421: 技术咨询

Part Number: LM3421

你好,

    请问一下,你们目前在找一款PWM 调节的 大电流 自动适应的IC,根据屏电压自动升降压来调节屏背光 。目前在评估LM3421,能否提供一份典型的Buck-Boost电路参考?