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STOD03A

Dual DC-DC converter for powering AMOLED display
  • NRND NRND

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 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 and thermal shutdown are integrated functions of the device.

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Errata Sheet
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Datasheet

Key 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 SWIREfrom - 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
  • Package DFN12L (3 x 3) 0.6 mm height

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6917: Dual DC-DC converter for powering AMOLED displays
3.0 491 KB

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