Abstract

In this paper, a scheme combining the advantages of both Dickson charge pump and Fibonacci charge pump has been proposed to output 30 V voltage for display driver integrated circuit applications. With only two external capacitors, it fits for small-sized package like smart card applications. The flying capacitors of Dickson charge pump were optimized and 2.3% of the chip size was saved. Meanwhile a highly precise and simple model for one-stage Fibonacci charge pump was utilized. By using RC charging theory, its voltage error can be limited within 0.02% and it is feasible for further efficiency optimization. Based on a 0.11 μm 1.5 V/6 V/32 V process, three different types of layouts for the built-in capacitors were fabricated to further optimize the chip size and their performance was compared. They enhance the flying capacitance by 6%, 26%, and 64%, respectively, compared with the traditional design. This design improves the maximum current drivability and the power efficiency is higher than 53%.

© 2016 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription