* Input Voltage Range: 4.5V to 18V
* Fixed 340kHz Frequency
* High Efficiency: up to 95%
* Output Current: 3A
* Current Mode Control
* Built-In Ov.

* LCD TV
* Set Top Box
* Portable DVD
* Digital Photo Frame AP3503 Document number: DS41526 Rev. 2 - 2 .

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 .

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