AP3502EMTR-G1 Datasheet

340kHz, 2A Synchronous DC-DC Buck Converter


General Description
The AP3502E is a 340kHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 2A load with high efficiency, excellent line and load regulation. The AP3502E exhibits high efficiency at light load. 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.

• Input Voltage Range: 4.5V to 18V
• Fixed 340kHz Frequency
• High Efficiency at Light Load
• High Efficiency: up to 95%
• Output Current: 2A
• Current Mode Control
• Built-in Over Current Protection
• Built-in Thermal Shutdown Function
• Built-in UVLO Function
• Built-in Over Voltage Protection
• Programmable Soft Start
• Hiccup Mode SCP

• Set Top Box
• Portable DVD
• Digital Photo Frame



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