Download RT4720A Datasheet PDF
RT4720A page 2
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RT4720A page 3
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RT4720A Key Features

  • Boost Converter to Supply Positive AVDD Voltage Fixed 5.8V or 7.7V
  • Boost Converter to Supply AMOLED Positive Voltage 4.6V
  • Inverter Converter to Supply AMOLED Negative Voltage From -1.4V to -5.4V
  • Maximum Output Current up to 300mA for AMOLED Positive & Negative Power Supply
  • Maximum Output Current up to 50mA for Fixed 5.8V or 7.7V AVDD Output Voltage
  • Typical Peak Efficiency : 90% (40mA to 150mA)
  • PWM Mode @ 1.5MHz Switching Frequency
  • High Output Voltage Accuracy
  • Excellent Line and Load Transient
  • Excellent Line and Load Regulation

RT4720A Description

RT4720A is a triple channels DC/DC converter which is designed to provide the power of AMOLED. It integrates step up DC/DC and an inverting converter to provide the positive and negative output voltage required by AMOLED. For the portable application, board space and efficiency are always major concerns.