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Shenzhen Yichuangxin Micro's main products: Quanxin brand: QX2303

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Supply boost IC/QX4054/SOT23 package

total supply
100000000 个
MOQ
1000 个
brand
泉芯
area
GuangdongShenzhen
Delivery period:
Shipped within 3 days from the date of payment by the buyer
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Shop information

area:Guangdong Shenzhen

Member level:corporate memberYear1

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Shenzhen Yichuang Microchip Electronics Co., Ltd.

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Product Details
 

特点
 同步整流:转换效率高达95%
 仅使用一个电感
 可利用高于、低于或等于输出的电池电压进行固定频率操作
 静态电流:300uA  
 高达600mA的连续输出电流
 1.8V至5.5V输入和输出电压范围(输出电压固定/可调)
 可设置振荡器频率从350kHz至1.5MHz
 无需肖特基二极管 
 在待机状态将VOUT与VIN断接  
 超低静态电流:IQ<1uA 
 小型10引脚耐热增强型MSOP封装
      描述
QX3440是一款高效、固定频率的降压-升压DC/DC转换器,能在输入电压高于、低于或等于输出电压的情况下操作。从而成为输出电压处于电池电压范围内的单节锂离子电池、多节碱性电池或NiMH电池应用的理想选择。

可利用一个外部电阻对高至1.5MHz的开关频率进行设置,并能使振荡器与外部时钟同步。静态电流仅300uA,因而最大限度的延长了便携式应用中的电池使用寿命。

该转换器的其他特点还包括电流仅1uA的停机模式、软起动控制、热停机和电流限值。QX3440采用热特性增强型10引脚MSOP封装。
      应用
 数码相机/无线电话
 掌上电脑PDA
 MP3/MP4播放机 
 手持式仪器

 
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