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发布者:微桥AX3132 发布时间:2011/1/26 阅读:9347次    关键字: AXELITE 亚瑟莱特 DC-DC 微桥 AX3132
AX3132-PWM Control 2A Step-Down Converter停产


AX3132-PWM Control 2A Step-Down Converter DataSheet (2015年7月停产)

GENERAL DESCRIPTION
    AX3132 consists of step-down switching regulator with PWM control. These devise include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc.
    AX3132 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. The operating frequency is decided by outside resistance. 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-8L with exposed pad package, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage up to 32V, it is also suitable for the operation via an AC adapter.

FEATURES
- Input voltage:8V to 32V
- Output voltage:3.3V to 26V
- Duty ratio:0% to 100% PWM control
- Oscillation frequency range is 50K~350KHz by outside resistance setting
- Enable with Soft-Start function
- Current Limit, Short Circuit Protect (SCP) and Thermal Shutdown protection
- Built-in internal SW P-channel MOS.
- SOP-8L-EP Pb-Free package.

 

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