Power management device sales reached $15.8 billion

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Power management device sales reached $15.8 billion [Copy link]

The analysis report of market research company iSuppli pointed out that due to the strong demand for computers, wireless and mobile communications, as well as the upgrading of automobiles, civilian consumer equipment and production equipment, power management semiconductor devices have come out of the trough in 2001 and have maintained a double-digit growth rate of 13.5% since 2003, with sales exceeding US$15.8 billion. In the total sales of power devices, integrated circuits account for about 45% and discrete devices account for 55%.

　　Power management integrated circuits usually include voltage regulators and interface circuits. Voltage regulators include linear voltage regulators, namely LDOs, as well as positive and negative output series circuits, in addition to PWM-type switch circuits, etc. Due to technological advances, the physical size of digital circuits in integrated circuit chips is getting smaller and smaller, so the working power supply is developing towards low voltage, and a series of new voltage regulators have emerged. The interface circuits for power management mainly include interface drivers, motor drivers, MOSFET drivers, and high-voltage/high-current display drivers, etc.

　　Power management discrete semiconductor devices can be divided into two categories, one includes rectifiers and thyristors; the other is triode type, including power bipolar transistors, MOSFET and IGBT (insulated gate field effect transistor). In the above two categories, the market share is about 3:7, with triode type accounting for 7.