Date: 12/08/2010

Dual output power supply chip for active matrix OLED display from TI

Texas Instruments has introduced a new 200-mA dual output power supply chip 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 a 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.

Other key features of the TPS65137 are:
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.

Package: 3-mm x 3-mm, 10-pin QFN

Price: Priced at US$0.85 for quantities of 1,000

Availability: Now