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Product Spec Banner
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RT4709 是一款多通道 DC-DC 轉換器，專為 AMOLED 顯示器供電而設計。它整合升壓與反相 DC-DC 轉換器，可提供 AMOLED 顯示器所需的正、負輸出電壓。此外，它也包含一個降壓轉換器，用於為顯示器 source driver IC 供電。對於可攜式應用而言，電路板空間與效率一直是主要考量。RT4709 的高切換頻率可使用低電感值電感，以節省電路板空間。VO1、VO2、VO3、VO4 輸出電壓可由外部 MCU 透過 ESWIRE 與 ASWIRE 腳位進行編程。VO1 的正輸出電壓範圍為 4.6V 至 5.2V，VO3 為 5V 至 8V，VO4 為 0.8V 至 1.5V。VO2 的負輸出電壓範圍為 -1.4V 至 -10V。RT4709 採用 WL-CSP-42B 2.64x2.89 (BSC) 封裝，可為 PCB 空間提供最佳化解決方案。建議接面溫度範圍為 −40°C 至 125°C，環境溫度範圍為 −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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