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NEW PRODUCT
A Product Line of Diodes Incorporated
AP3440
4A, 2MHZ HIGH PERFORMANCE SYNCHRONOUS BUCK CONVERTER
Description
The AP3440 is a current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 4A load with high efficiency, excellent line and load regulation.
The device integrates two N-channel power MOSFETs with low onresistance. Current mode control provides fast transient response and cycle-by-cycle current limit.
The switching frequency of AP3440 can be programmable from 200kHz to 2MHz, which allows small-sized components, such as capacitors and inductors. A standard series of inductors from several different manufacturers are available. This feature greatly simplifies the design of switch-mode power supplies.
Under voltage lockout is internally set at 2.