GENERAL DESCRIPTION
AX3164 is a step-down switching PWM controller. External P-channel MOSFET is need in application circuit for switching driver. AX3164 controller provides low-ripple power, high efficiency, and excellent transient characteristics control. This controller is build out soft start function that prevents overshoot and inrush current at startup. An over current protect function and short circuit protect function are determined external VCC-SENSE resistor, and when OCP or SCP happens, the operation frequency will be reduced. An external compensation is easily to system stable; the low ESR output capacitor can be used. With the addition of a P-channel Power MOSFET, a coil, capacitors, and a diode connected externally, these ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devices when coupled with the SOP-8L package, providing such outstanding features as low current consumption. Since this controller can accommodate an...