Power Solution for Wearable AMOLED Products
• Input Voltage Range : 2.9V to 4.8V
• Positive Output Voltage AVDD : 3.3V
• Positive Output Voltage OVDD Range : 2.8V to 4V
(Default is 3.3V ±1%)
• Negative Output Voltage OVSS Range : −0.6V to
−4V (Default is −3.3V ±1%)
• Excellent Line/Load Regulation
• Excellent Line/Load Transient
• Advanced Power-Save Mode for Light-Load
• Low Output Ripple Voltage
• Built-in Internal Soft-Start
• True Output Load Disconnect From Input
• UVLO, SCP, OCP, OTP, OVP Protection
• Shutdown Current : Typ. 0.1μA


• Wearable AMOLED Products


The RT4730 is a highly integrated power solution with Buck-Boost, and inverting charge pump to generate positive and negative output voltage. The output voltages can be adjusted with by SWIRE interface protocols. With its input voltage range of 2.9V to 4.8V, the RT4730 is optimized for products powered by single-cell batteries and symmetrical output currents up to 50mA. The RT4730 is available in the WL-CSP-16B 2.34x2.34 (BSC) package.