ST STOD13AS Dual DC-DC Converter 250mA for AMOLED Displays - Data Manual
Summary
Power your next wearable or battery-operated device with the STOD13AS dual DC-DC converter. Engineered for high efficiency and robust protection, it is specifically designed to power AMOLED displays by providing both step-up and programmable negative outputs. This comprehensive manual guides designers through every aspect of integration, covering schematics, electrical specifications, sophisticated operation modes (including soft-start and pulse skipping), and optimal PCB layout recommendations. It is an essential resource for electronics engineers building portable devices like smart cameras and mobile phones.
Page 1 Text Content
STOD13AS
250 m A dual DC-DC converter for powering AMOLED displays
Features Step-up and inverter converters Operating input voltage range from 2.5 V to 4.5 Synchronous rectification for both DC-DC converters Minimum 250 m A output current 4.6 V fixed positive output voltage
DFN12L (3 x 3 mm)
Programmable negative voltage by SWIRE from -2.4 V to -6.4 V at 100 m V steps Typical efficiency: 85%
Multimedia players
Pulse skipping mode in light load condition 1.5 MHz PWM mode control switching frequency
Description
TDMA noise high immunity
The STOD13AS is a dual DC-DC converter for
Enable pin for shutdown mode
AMOLED display panels. It integrates a step-up Low quiescent current in shutdown mode and an inverting DC-DC converter making it particularly suitable for battery operated products,
Soft-start with inrush current protection
in which the major concern is overall system
Overtemperature protection
efficiency. It works in pulse skipping mode during Temperature range: -40 °C to 85 °C low load conditions and PWM-MODE at 1.5 MHz frequency for medium/high load conditions. The
True-shutdown mode
high frequency allows the value and size of
Fast discharge outputs of the circuits after
external components to be reduced. The Enable
shutdown
pin allows the device to be turned off, therefore Short-circuit protection reducing the current consumption to less than 1 µA. The negative output voltage can be
Package DFN12L (3 x 3 mm) 0.6 mm height
programmed by an MCU through a dedicated pin which implements single-wire protocol. Soft-start
Applications
with controlled inrush current limit, thermal shutdown, and short-circuit protection are
Active matrix AMOLED power supply in
integrated functions of the device.
portable devices Cellular phones Camcorders and digital still cameras Table 1. Device summary Order code Positive voltage Negative voltage Package Packaging
STOD13ASTPUR 4.6V -2.4V to -6.4V DFN12L (3 x 3mm) 3000 parts per reel
January 2012 Doc ID 022733 Rev 1 1/25
www.st.com
Page Summary Contents For ST STOD13AS Dual DC-DC Converter 250mA for AMOLED Displays - Data Manual
Manual Details
| Brand | Dual |
|---|---|
| Pages | 25 |
| File Size | 689.31 KB |
| Published | May 20, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the input voltage range for the STOD13AS?
It operates on an input voltage from 2.5 V up to 4.5 V.
How can I program the negative output voltage?
The negative voltage (range -2.4 V to -6.4 V) is programmed by an MCU through a dedicated pin using a single-wire protocol.
What protective features are included in this converter?
It offers short-circuit protection, overtemperature protection, and soft-start with built-in inrush current limiting.
How does the device manage power consumption during standby mode?
It achieves low quiescent current (less than 1 µA) when using its true-shutdown mode.