July 2014

DocID026653 Rev 1

1/9

For further information contact your local STMicroelectronics sales

office.

www.st.com

STOD32A

300 mA triple DC-DC converter for powering AMOLED displays

Data brief

Features



Operating input voltage range from 2.5 V to

4.5 V



300 mA output current for step-up and



55 mA output current for an auxiliary step-up



4.6 V positive step-up converter



Programmable negative voltage from - 0.8 V

to - 4.8 V default -4.0 V



Auxiliary step-up converter positive voltage

programmable step from 5.8 V to 7.9 V

default 7.6 V



Soft-start with inrush current protection



Overtemperature protection



True-shutdown mode



Short-circuit protection



Package QFN16 (3.0x3.0 mm), 0.5 mm pitch

Applications



Active matrix OLED power supply in portable

devices



Cellular phones, multimedia players,

camcorders and digital still cameras

Description

The STOD32A is a triple DC-DC converter for

AMOLED display panels. It integrates 300 mA

step-up and inverting DC-DC converters plus

auxiliary step-up converter. This device is

particularly suitable for battery-operated

products, in which the major concern is overall

system efficiency. Output voltages can be

programmed by a dedicated pin, which

controlled inrush current limit, thermal shutdown

and short-circuit protection are integrated

functions of the device.