Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
 
EE Times-Asia > Power/Alternative Energy
 
 
Power/Alternative Energy  

Power supply improves AMOLED pictures

Posted: 16 Aug 2010  Print Version  Bookmark and Share

Keywords:output power supply  AMOLED displays  LDO 

Texas Instruments Inc. rolls a new 200mA dual output power supply designed to provide improved picture quality for active matrix OLED (AMOLED) displays that require positive and negative supply rails.

The TPS65137 uses a low dropout (LDO) post regulator for line and load transient response with minimum output voltage ripples to provide stable picture quality. With its wide input range of 2.3V to 5.5V and small solution size of 3mm x 3mm QFN package and small external component count, the TPS65137 is suited for AMOLED displays in portable devices, such as mobile phones and smart phones.

Key features and benefits of the TPS65137 include a voltage range of 2.3V to 5.5V that allows the device to accept higher positive input voltages than the positive output voltage and still maintain accurate regulation of one percent of the positive output voltage; an LDO post regulator for positive output to provide line and load transient response with minimum output voltage ripples to provide stable picture quality; advanced power save mode with out-of-audio control reduces switching frequency as the load current decreases and maintains high efficiency over the entire load current range without audible noise; and digitally programmable negative output voltage from -2.2V to -4.9V in digital step.

The TPS65137 is available now in a 3mm x 3mm, 10-pin QFN package and is priced at $0.85 in quantities of 1,000.





Article Comments - Power supply improves AMOLED picture...
Comments:  
*  You can enter [0] more charecters.
*Verify code:
 
 
 
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

 
 
Back to Top