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发布者:微桥 发布时间:2012/8/10 阅读:6334次    关键字: DC-DC
AX3163-PWM Control 3A Step-Down Converter(停产)


AX3163-PWM Control 3A Step-Down Converter DataSheet (停产)

GENERAL DESCRIPTION
    AX3163/A consists of step-down switching regulator with PWM control. These devise include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc.
    AX3163/A provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to the duty ratio linearly form 0 up to 100%. This converter 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 built inside, 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 an internal P-channel Power MOS, 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-16L with exposed pad package, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage up to 58V, it is also suitable for the operation via an AC adapter.

FEATURES
- Input voltage:10.8V to 58V
- Output voltage:3.3V to 56V
- Duty ratio:0% to 100% PWM control
- Enable and Soft-Start function
- Current Limit, Short Circuit Protect (SCP) and Thermal Shutdown protection
- Built-in internal SW P-channel MOS.
- SOP-16L-EP Pb-Free package.

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