Title :
A high speed and power-efficient level shifter for high voltage buck converter drivers
Author :
Li, Yan-Ming ; Wen, Chang-Bao ; Yuan, Bing ; Wen, Li-Min ; Ye, Qiang
Author_Institution :
Sch. of Electron. & Control Eng., Chang´´an Univ., Xi´´an, China
Abstract :
A driver for high-voltage (HV) single chip synchronous buck converters with a n-channel lateral double diffused MOS (nLDMOS) as power switches and a high speed low power level shifter is presented. Using a short time fast speed pull-down circuit, the level shifter realized high speed with a limited bias current. The circuit is implemented using UMC 0.5-μm 30V LDMOS process, and has been integrated into a buck converter, which requires input voltage up to 25V.
Keywords :
MOS integrated circuits; power convertors; power integrated circuits; LDMOS process; high speed low power level shifter; high-voltage single chip synchronous buck converter driver; limited bias current; n-channel lateral double diffused MOS; nLDMOS; power switches; power-efficient level shifter; pull-down circuit; size 0.5 mum; voltage 30 V; Breakdown voltage; Converters; DH-HEMTs; Driver circuits; Logic gates; Low voltage; Switching frequency;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667742
