Description
The STOD03A is a dual DC-DC converter for AMOLED display panels. It integrates a step-up and an inverting DC-DC converter making it particularly suitable for battery operated products, in which the major concern is overall system efficiency. It works in pulse skipping mode during low load conditions and PWM-MODE at 1.5 MHz frequency for medium/high load conditions. The high frequency allows the value and size of external components to be reduced. The Enable

Features
■ Step-up and inverter converters
■ Operating input voltage range from 2.3 V to 4.5 V
■ Synchronous rectification for both DC-DC converters
■ 200 mA output current
■ 4.6 V fixed positive output voltages
■ Programmable negative voltage by SWIRE from
■ 2.4 V to - 5.4 V
■ Typical efficiency: 85%
■ Pulse skipping mode in light load condition
■ 1.5 MHz PWM mode control switching frequency
■ Enable pin for shutdown mode
■ Low quiescent current: < 1 µA in shutdown mode
■ Soft-start with inrush current protection
■ Overtemperature protection
■ Temperature range: - 40 °C to 85 °C
■ True-shutdown mode
■ Fast discharge outputs of the circuits after shutdown

Applications
■ Active matrix AMOLED power supply
■ Cellular phones
■ Camcorders and digital still cameras
■ Multimedia players