Description
The STOD13CM 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 inverting converters
■ Operating input voltage range from 2.5 V to 4.5 V
■ Synchronous rectification for both DC-DC converters
■ Minimum 250 mA output current
■ 4.6 V fixed positive output voltage
■ Programmable negative voltage by SWIRE from
■ 1.4 V to - 4.4 V at 100 mV steps
■ Typical efficiency: 85%
■ Pulse-skipping mode in light load condition
■ 1.5 MHz PWM mode control switching frequency
■ High immunity to TDMA noise
■ Enable pin for shutdown mode
■ Low quiescent current in shutdown mode
■ Soft-start with inrush current protection
■ Overtemperature protection
■ Temperature range: -40 °C to 85 °C
■ True-shutdown mode
■ Fast circuit discharge outputs circuits after shutdown
■ Short-circuit protection

Applications
■ Active matrix OLED power supply in portable devices
■ Cellular phones
■ Camcorders and digital still cameras
■ Multimedia players