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MOSFET Driver

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Richtek’s synchronous MOSFET drivers have been extensively verified in customer designs with good reliability, high efficiency, low standby power, and low total BOM cost. Based on our experience in PC market, we are going to create new products with adjustable dead time, pre-OVP, low operating current feature.

Richtek also provides smart design tool and GUI which can reduce design effort and shorten design cycle.

Internal or External MOSFETs?

Applications that require very large switch currents (i.e. >10A) will most likely use external switching MOSFETs in combination with a Buck or a Boost controller.

These configurations are often used in power converters with output powers larger than 25W

Controllers with external MOSFETs are also used in circuits that have very high switching voltage, for example in applications that are powered from the AC line voltage (Flyback controllers and PFC controllers).

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