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 >>AX3513-1.4MHz,1A Synchronous Step-Down Converter   双击自动滚屏
发布者:微桥AX3513 发布时间:2011-2-15 阅读:4790次    关键字: AXELITE 亚瑟莱特 DC-DC 微桥 AX3513
AX3513-1.4MHz,1A Synchronous Step-Down Converter


AX3513-1.4MHz,1A Synchronous Step-Down Converter DataSheet

GENERAL DESCRIPTION
    AX3513 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is 250uA and drops to <1uA in shutdown. The 2.5V to 6V input voltage range makes AX3513 ideally suited for single Li-Ion, two to four AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.4MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous
switch increases efficiency and decreases need of an external schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. AX3513 is available in small TSOT23-5L and TDFN-6L packages.

FEATURES
- 2.5V to 6V Input Voltage Range
- Output Voltage from 0.6V to VIN
- High Efficiency: Up to 96%
- 1.4MHz Constant Frequency Operation
- Up to 1A Output Current
- Quiescent Current: 250uA (Typical)
- 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
- TSOT23-5L and TDFN-6L Pb-Free packages

本文共分 1

  • 上篇文章AX3503-1.5MHz,1A Synchronous Step-Down Converter
  • 下篇文章AX3514-1.2MHz,2A Synchronous Step-Down Converter
  •  
     

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