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 >>AX3504/A-1.2MHz, 2A Synchronous Step-Down停产   双击自动滚屏
发布者:来自网络 发布时间:2010/1/2 阅读:7869次    关键字: AX3504
AX3504/A-1.2MHz, 2A Synchronous Step-Down停产


AX3504/A     (2015年7月停产)


General Description

   The AX3504/A is a 1.2MHz constant frequency current mode PWM step-down converter. It is ideal for portable equipment requiring very high current up to 2A from single-cell Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions. The AX3504/A also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications. The AX3504/A can supply up to 2A output load current from a 2.5V to 5.5V input voltage and the output voltage can be regulated as low as 0.6V. The high switching frequency minimizes the size of external components while keeping switching losses low. The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation. The AX3504/A is available in adjustable (0.6V to VIN) output voltage. The device is available in SOP8 Pb-free and DFN-10L packages.

 

Features

  • Input Range:5.5V
  • Efficiency(%):88(0.5A)
  • Availability:NOW
  • Features:a,b,c,e,f,g
  • Frequency:1.2Mhz
  • Output Current:2.0A
  • Output Voltage:Adj(0.6V)
  • PackageType:SOT8,DFN10 AX3504/A
  • Stanby Current:1uA(Max)

  •  

    Applications

    OLPC,UMPC
    Notebook Computer
    Handheld Portable Device
    Step-Down Converters Requiring High Efficiency and 3A Output Current

     

    Typical Application


     

    AX3504 2A Syn. Buck


    -2.5V to 5.5V Input Voltage Range
    -Output Voltages from 0.6V to VIN
    - High Efficiency: Up to 95%
    - 1.2MHz Constant Frequency Operation
    - 2A Output Current
    - No Schottky Diode Required
    - Current Mode Operation for Excellent Line and Load Transient Response
    - Current limit, Enable function
    - Short Circuit Protect (SCP)
    - Build-in Soft Start function
    - ≤ 1µA Shutdown Current
    - SOP8 Pb-Free and DFN-10L packages
    P/N Package Features Vin Iout Vout Frequency Stanby Current Efficiency
    Data Sheet

    CMOS Step-down DC/DC

    AX3502 SOT23-5 a,b,c,e,f,g 5.5V 0.6A Adj(0.6V) 1.5Mhz 1uA(Max) 95%(0.5A)
    AX3503 SOT23-5 a,b,c,e,f,g 6V 1.0A Adj(0.6V) 1.5Mhz 1uA(Max) 92%(0.5A)
    AX3514 SOP-8,DFN10 a,b,c,e,f,g 5.5V 2.0A Adj(0.6V) 1.2Mhz 1uA(Max) 95%(0.5A)
    AX3505 SOP8-EP a,b,c,e,f,g,l 5.5V 1.0A*2 Adj(0.6V) 1.5Mhz 1uA(Max) 88%(0.5A)
    AX3506 SOP8-EP,DFN-10 a,b,c,e,f,g 5.5V 2.5A Adj(0.6V) 1.2Mhz 1uA(Max) 88%(0.5A)
    AX4101 AX4102                
    a:Synchronous b:Internal switch c:Enable Pin d:Current limit setting e:Internal current limit f: Thermal Shutdown g:Power saving mode h:Voltage Reference i:UVLO j:Boost Pin k:External Compensation I:dual channel m:External sofe sart n:with LDO
    本文共分 1

  • 上篇文章AX3503-1.5MHz,1A Synchronous Step-Down
  • 下篇文章AX3505-Dual Channel,1.5MHz,1A,Synchronous
  •  
     

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