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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 146

2-phase DC/DC controller makes fast, efficient and compact power supplies

David Chen

Abstract

The LTC3708 PWM controller is described, which achieves high efficiency and fast transient response with a compact size. Its features make it an ideal controller for high performance power management applications.

Keywords

LTC3708

2-phase

DC/DC controller

high efficiency

transient response

High efficiency, fast transient response and small size are often at odds in power supply designs. Fortunately, the 2-phase LTC3708 PWM controller makes it possible to simultaneously achieve all three. Figure 146.1 show the LTC3708 in a compact, high efficiency dual-output power supply that has excellent transient response.

Figure 146.1a Dual ...

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