微桥科技产品新闻动态管理发布系统 现在是
首页 ·公司动态 ·产品动态 ·原厂动态 ·行业动态 ·技术资料 ·LED驱动 ·DC-DC ·AC-DC ·MOSFET ·音频功放 ·电池管理 ·霍尔及马达驱动 ·其他 ·联系我们

当前位置:首页>>DC-DC>>Axelite亚瑟莱特 >>AX3121-3.5A Synchronous buck Converter   双击自动滚屏
发布者:微桥AX3121 发布时间:2011-1-24 阅读:6764次    关键字: AXELITE 亚瑟莱特 DC-DC 微桥 AX3121
AX3121-3.5A Synchronous buck Converter


AX3121-3.5A Synchronous buck Converter DataSheet

GENERAL DESCRIPTION
    AX3121 consists of step-down switching regulator with synchronous PWM converter. These devise include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and NMOS etc.
    AX3121 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 also contains an error amplifier circuit as well as an enable/soft-start circuit that prevents overshoot at startup. An enable function, 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. Also, an external compensation is easily to system stable.
    With the addition of internal PMOS and NMOS, a coil and capacitors 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-EP package, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage up to 23V.

FEATURES
- Input voltage:4.5V to 23V
- Output voltage:VFB to VCC
- Duty ratio:0% to 100% PWM control
- Oscillation frequency:250KHz typ.
- Enable/Soft-Start and Current Limit (CL).
- Thermal Shutdown function.
- Short Circuit Protect (SCP).
- Built-in internal SW P-channel and N-channel MOS.
- SOP-8L with Exposed Pad Pb-Free package.

本文共分 1

  • 上篇文章AX3120-2.5A Synchronous buck Converter
  • 下篇文章AX3122-5A Synchronous buck Converter
  •  
     

    版权所有 Copyright Micro Bridge Technology Co.,Ltd. All rights reserved.粤ICP备05065909号