Abstract-This paper describes a complete digital PWM controller IC for high-frequency switching converters. Novel architecture and configurations of the key building blocks are A/D converter, compensator, and digital pulse-width modulator, are introduced to meet the requirements of tight output voltage regulation, high-speed dynamic response, and programmability without external passive components. The implementation techniques are experimentally verified on a prototype chip that takes less than 1 mm 2 of silicon area in a standard 0.5 digital complementary metal oxide semiconductor (CMOS) process and operates at the switching frequency of 1 MHz.Index Terms-DC-DC switch-mode power conversion, digital control, digital pulse width modulation.

This paper describes a complete digital controller IC for high-frequency switching converters. Novel architecture and configurations of the key building blocks: A/D converter, compensator and digital pulse-width modulator, are introduced to meet the requirements of tight output voltage regulation, highspeed dynamic response, and programmability without external passive components. The implementation techniques are experimentally verified on a prototype chip that takes less than 1 mm 2 of silicon area in a standard 0.5µ digital CMOS process and operates at the switching frequency of 1 MHz.

No abstract

No abstract