THV4027 is 4ch DC/DC converter for active OLED panel, with 2 ch of Switching regulator for anode and cathode voltage and 2ch of charge pump for gate high and gate low. Each switching regulator channel and 2 of charge pump can be enabled and disabled by each control pin independently for preferable sequence. From small current to max.400mA load, max. 87%(total) of efficiency is available. The current limit function avoids the rush current when the start up of OLED and instant OLED load changes for small battery operated equipment.

■ Input voltage range : 2.5 to 5.5V
■ Switching Frequency : 200kHz to 1.2MHz
■ PWM Switching Regulator Boost / Inverting
■ Charge pump Positive / Negative
■ Reference voltage : 1.2V +/- 1%
■ Current limit function
■ Independent enable/disable control for Boost/Inverting/Charge Pump
■ External Load Switch soft open.
■ Fixed and Used defined Soft Start
■ QFN28pin　（4.0x4.0mm）

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