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AP3503,3A,18V,340kHz同步降压DC-DC

AP3503】3A,18V,340kHz同步降压DC-DC

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AP3503 详细介绍

AP3503概述
The AP3503 is a 340kHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation. The device integrates N-channel power MOSFET switches with low on-resistance. Current mode control provides fast transient response and cycle-by-cycle current limit.  The over output voltage protection is equipped in AP3503, which protects the IC under open load condition. The AP3503 includes UVLO, programmable soft-start and OTP to protect the circuit. This AP3503 is available in SOP-8(EP) package.


AP3503技术特征
AP3503 Input Voltage Range: 4.75V to 18V
AP3503 Fixed 340kHz Frequency
AP3503 High Efficiency: up to 93%
AP3503 Output Current: 3A
AP3503 Current Mode Control
AP3503 Built-in Over Current Protection
AP3503 Built-in Thermal Shutdown Function
AP3503 Built-in UVLO Function
AP3503 Built-in Over Voltage Protection
AP3503 Programmable Soft-start 
 
AP3503应用领域
• LCD TV
• Set Top Box
• Portable DVD
• Digital Photo Frame