Monolithic Power Systems, Inc.

Chengdu Monolithic Power Systems Co., Ltd.

Huichun Dai

Fangyu Zhang

Lijie Jiang

James Nguyen

Jinghai Zhou

Chao Liu

Wangmiao Hu

Chiahsin Chang

Francis Yu

Keke Zhao

An integrated circuit (IC) control device for a multi-phase switching converter having a master phase and at least one slave phase, has a first ON-time control circuit to provide a first ON-time control signal and at least one slave ON-time control circuit. Each slave ON-time control circuit has a closed-loop gainer to provide a gain by executing proportional integral to a difference between a master phase temperature and a slave phase temperature, a multiplier to provide a current feedback signal by multiplying a slave current signal with the gain, a bias circuit to provide a bias by executing proportional integral to a difference between a master phase current and the current feedback signal, and an adder to provide a corresponding slave ON-time control signal by adding the first ON-time control signal to a bias ON-time control signal provided by a bias ON-time generator based the bias.

Integrated circuit control device for multi-phase switching converters and control method thereof

A multi-phase voltage converter has a plurality of integrated circuits (ICs), and a controller. Each IC has a power switch, a monitoring pin and a current sense pin. The power switch is controlled to convert an input voltage to an output voltage. The current sense pin is capable of providing a current sense signal representative of a current flowing through the power switch. The controller is capable of providing a clock signal via the monitoring pin, and provides a plurality of data signals via the current sense pin of the plurality of ICs. Each of the plurality of ICs is assigned an identification code based on the clock signal and one of the plurality of data signals.

Multi-phase voltage converter with identification codes assignment

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Hangzhou, China

Huichun Dai