Hot-selling and scarce STOD13ASTPUR 250 mA dual DC-DC converter for powering AMOLED displays QFN spot stock

    Product Descriptions

The STOD13AS 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  pin allows the device to be turned off, therefore  reducing the current consumption to less than 1  µA. The negative output voltage can be  programmed by an MCU through a dedicated pin  which implements single-wire protocol. Soft-start  with controlled inrush current limit, thermal  shutdown, and short-circuit protection are  integrated functions of the device.

    Product Features

■ Step-up and inverter 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 -2.4 V to -6.4 V at 100 mV steps

■ Typical efficiency: 85%

■ Pulse skipping mode in light load condition

■ 1.5 MHz PWM mode control switching frequency

■ TDMA noise high immunity

■ 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 discharge outputs of the circuits after shutdown

■ Short-circuit protection

■ Package DFN12L (3 x 3 mm) 0.6 mm height

    Product Applications

■ Active matrix AMOLED power supply in portable devices

■ Cellular phones

■ Camcorders and digital still cameras

    Product Specification

    Product Photos

    For more product information, please download the PDF