AS3145数据手册Anisem中文资料规格书

描述 Description

The AS3145 is a PWM buck converter designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.25V reference voltage feedback control to minimize power dissipation, The AS3145 includes a high current P-MOSFET, high efficiency and excellent transient characteristics. The PWM control circuit is able to the duty ratio from 0 to 100%. The features include user accessible EN pin for enabling, thermal shutdown, cycle-by-cycle current limit and over current protection.\r
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The AS3145 is available in a low profile SOP-8L package

特性 Features

• Input Voltage Range: 3.6V to 28V\r
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• Feedback Voltage: 0.25V ± 2%\r
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• Low Quiescent Current: 4mA(Typ.)\r
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• Fixed Operating Frequency: 320KHz(Typ.)\r
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• Output Current: 2A\r
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• Internal Soft Start Function\r
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• Over Current Protection\r
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• Thermal Shutdown\r
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• Cycle-by-cycle Current Limit\r
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• Internal Built-in P-MOSFET\r
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• Package: SOP-8L

应用 Application

• High Power LED Driver\r
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• MR16 & GU10 Solution\r
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• Constant Current Source\r
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• General Lighting Solution