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Product Spec Banner
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RT4709 是一款多通道 DC-DC 转换器，专为 AMOLED 显示器供电而设计。它集成升压与反相 DC-DC 转换器，可提供 AMOLED 显示器所需的正、负输出电压。此外，它也包含一个降压转换器，用于为显示器 source driver IC 供电。对于便携式应用而言，电路板空间与效率一直是主要考虑因素。RT4709 的高开关频率可使用低电感值电感，以节省电路板空间。VO1、VO2、VO3、VO4 输出电压可由外部 MCU 通过 ESWIRE 与 ASWIRE 引脚进行编程。VO1 的正输出电压范围为 4.6V 至 5.2V，VO3 为 5V 至 8V，VO4 为 0.8V 至 1.5V。VO2 的负输出电压范围为 -1.4V 至 -10V。RT4709 采用 WL-CSP-42B 2.64x2.89 (BSC) 封装，可为 PCB 空间提供优化解决方案。建议结温范围为 −40°C 至 125°C，环境温度范围为 −40°C 至 85°C。
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<div class="spec-list"><ul class="lv1"><li>Supply Voltage Range: 2.5V to 4.8V </li><li>Boost Converter for Positive VO1 (ELVDD) Voltage: 4.6V to 5.2V </li><li>Inverting Converter for Negative VO2 (ELVSS) Voltage: -1.4V to -10V </li><li>Boost Converter for Positive VO3 (AVDD) Voltage: 5V to 8V </li><li>Buck Converter for Positive VO4 (DVDD) Voltage: 0.8V to 1.5V </li><li>Maximum Output Current up to 800mA for AMOLED Positive and Negative Power Supply (VO2 > -6V) </li><li>Maximum Output Current up to 150mA for AVDD Output Supply </li><li>Maximum Output Current up to 300mA for DVDD Output Supply </li><li>PWM Mode with 1.45MHz Switching Frequency </li><li>High Output Voltage Accuracy </li><li>Excellent Line and Load Transient Response </li><li>Excellent Line and Load Regulation </li><li>Programmable VO1 and VO2 Transition Time </li><li>Programmable Output Discharge/Hi-Z Function </li><li>Low Quiescent Current: < 1μA in Shutdown Mode </li><li>Protection Features: UVLO, OCP, SCP, OTP </li><li>2.64x2.89-42B WCSP Package </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>AMOLED Panels </li><li>Mobile Phones </li><li>Portable Instruments </li></ul></div>
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