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Hysteretic P-FET buck controller

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NATIONAL Semiconductor, represented in Australia by Arrow Electronics , has released the LM3475, a hysteretic P-FET buck controller designed to support a range of high-efficiency applications.

The LM3475 is available in a SOT23-5 package and has a hysteretic control scheme that enables a simple system design with no external compensation, stable operation with a wide range of components and fast transient response. Hysteretic control also provides high-efficiency operation, even at light loads. The P-FET architecture allows for low component count, as well as 100% duty cycle and ultra-low dropout operation.

Typical applications include TFT monitors, automobile PCs, vehicle security navigation systems, notebook standby supplies, battery-powered portable applications and distributed power systems.

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