Date: 24/06/2010

PMIC for mobile phone display from Maxim delivers efficiency up to 93%

Maxim has introduced the MAX8930, a power-management IC (PMIC) for mobile phone displays. It consists of a white LED (WLED) driver, passive-matrix organic LED (PMOLED) driver, and a linear drop-out regulator (LDO) in a 10mm² package. This PMIC reduces solution size by over 45% compared to discrete implementations according to Maxim.

Some key features of MAX8930 are:
1) It employs an adaptive-charge-pump architecture (1x or -0.5x) and dimming techniques to achieve up to 93% efficiency.
2) Produces 90% efficiency over the 3.5V to 3.7V input range, in which the lithium-ion (Li+) cell operates most often.
3) This IC is suggested for space-constrained flip phones with multiple displays and a peripheral, such as a CMOS imager, in the lid.
4) Uses an I²C-compatible control interface.
5) It offers automatic luminance control to automatically adjust the WLED brightness according to the ambient-light level
6) The content-adaptive interface optimizes brightness based on the gamma-correction information of the image.

Package: 3.17mm x 3.17mm, 49-bump wafer-level package (WLP)

Operating temperature range: -40°C to +85°C

Price: start at US$3.45.

Availability: Now

For more information visit: www.maxim-ic.com.