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The RT4733 is a highly integrated power solution with a buck-boost converter and an inverting charge pump to generate negative output voltage. The output voltages can be adjusted via the SWIRE interface protocol. The part maintains high efficiency by utilizing a -0.5x/-1x mode fractional charge pump. With an input voltage range of 2.9V to 5.5V, the RT4733 is optimized for products powered by single-cell batteries and can supply symmetrical output currents up to 150mA. The RT4733 is available in the WL-CSP-21B 1.31x2.91 (BSC) package.The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 85°C.

應用

  • AMOLED Panels
  • Wearable Devices
主要規格
RT4733
Status Active
Vin (min) (V) 2.9
Vin (max) (V) 5.5
Number of Channels 5
Number of Buck Converters 0
Number of Boost Converters 0
Number of Negative Outputs 2
Number of LED Drivers 0
Number of LDO Regulators 3
Application OLED for Watch
Features Cycle-by-Cycle Current Limit;Enable Input;OCP;OVP;SCP;UVP
Package Type WL-CSP1.31x2.91-21(BSC)
關鍵特性
  • 2.9V to 5.5V Supply Voltage Range
  • Positive OVDD Voltage from 2.8V to 4.6V
  • Negative OVSS Voltage from -0.6V to -4.2V
  • Positive AVDD Voltage from 2.8V to 3.3V
  • -0.5x/-1x VON Negative Charge Pump
  • Maximum Output Current up to 150mA for AMOLED Positive & Negative Power Supply in Symmetry Mode
  • Maximum Output Current up to 60mA for AMOLED Positive & Negative Power Supply in Asymmetry Mode
  • Maximum Output Current up to 30mA for AVDD Output Supply
  • Excellent Line and Load Transient/Regulation
  • Discharge/Hi-Z Function
  • Low Quiescent Current < 1μA in Shutdown Mode
  • UVLO, OCP, SCP, OTP Protection
  • Available in 21-Ball WL-CSP Package
庫存實際狀況請洽代理商或業務窗口
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