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Supply Improves Picture Quality in AMOLED Displays

Wed, 08/11/2010 - 11:28am
TPS65137 Texas Instruments introduced a 200-mA 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 2.3 V to 5.5 V and small solution size of 3-mm x 3-mm QFN package and small external component count, the TPS65137 is suited for AMOLED displays in portable devices, such as mobile phones and smartphones. Order samples of the TPS65137 today: www.ti.com/tps65137-pr.  

Key features and benefits of the TPS65137

· Wide input voltage range of 2.3 V to 5.5 V 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.

· 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.

· Digitally programmable negative output voltage from -2.2 V to -4.9 V in digital step.

Find out more about TI’s display power portfolio by visiting the links below:

· For the complete display power portfolio visit: www.ti.com/lcddisplay-pr.  

· Ask questions and share knowledge in the power management forum in the TI E2E Community: www.ti.com/powermanagement-pr.  

· See TI’s complete power management portfolio: www.ti.com/power-pr.  

Availability and pricing

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

For more information, go to www.ti.com.  

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