On-chip voltage down converter for LV/LP digital system

Shyh-Jye Jou*, Tsu Lin Chen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


A new on-chip differential amplifier based DC to DC Voltage Down Converter (VDC) is proposed. The converter is a negative feedback-type voltage follower with precise internal reference voltage generator, and high current drive capability. This VDC converts 5 V to lower voltage that the internal circuits of the chip are used. In here, 3 V is used as a test vehicle. The proposed VDC has characteristics such as output voltage remains 3 V over a large load current range (0-100 mA), temperature dependency of 29 mv/°c. The VDC chip was fabricated in a 0.8 um Single-Poly-Double-Metal CMOS process and layout size is 690*210 μm2. The output voltage is stabilized within ±1% for supply voltage with ±10% variation has been achieved.

Original languageEnglish
Pages (from-to)1996-1999
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 1997
EventProceedings of the 1997 IEEE International Symposium on Circuits and Systems, ISCAS'97. Part 4 (of 4) - Hong Kong, Hong Kong
Duration: 9 Jun 199712 Jun 1997


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