Dual DC-DC converter for powering AMOLED displays

The STOD03AS is a dual DC-DC converter with short-circuit protection 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 light 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.

Key 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 200 mA output current
  • 4.6 V fixed positive output voltage
  • Programmable negative voltage by SWIRE from -2.4 V to -5.4 V at 100 mV steps
  • 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 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

Resources

Technical Documentation

Product Specifications
Description Version Size
DS8817 DS8817: Dual DC-DC converter for powering AMOLED displays 2.0 690 KB

Publications and Collaterals

Selection Guides
Description Version Size
Linear and Switching Voltage Regulators Selection Guide 383 KB
Brochures
Description Version Size
Brochure Power management guide 05.2016 4 MB
Support & Community


Sample & Buy

Part Number Marketing Status Quantity Unit Price (US$) * Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STOD03ASTPUR NRND - - VFDFPN 12 3x3x0.55 Tape And Reel -40 85 NEC EAR99 - MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STOD03ASTPUR NRNDVFDFPN 12 3x3x0.55IndustrialEcopack2 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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