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    首页产品索引TPS61241

    TPS61241

    购买收藏
    5V、500mA、4MHz 升压 DC/DC 转换器

    制造商:TI

    产品信息

    描述 The TPS6124x device is a highly efficient synchronous step-up DC-DC converter optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-Polymer battery. The TPS6124x supports output currents up to 450 mA. The TPS61240 has an input valley current limit of 500 mA, and the TPS61241 has an input valley current of 600 mA.With an input voltage range of 2.3 V to 5.5 V, the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment. The TPS6124x boost converter is based on a quasi-constant on-time valley current mode control scheme.The TPS6124x presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the TPS6124x is shut down.During light loads the device will automatically pulse skip allowing maximum efficiency at lowest quiescent currents. In the shutdown mode, the current consumption is reduced to less than 1 µA.TPS6124x allows the use of small inductors and capacitors to achieve a small solution size. During shutdown, the load is completely disconnected from the battery. The TPS6124x is available in a 6-pin DSBGA and 2-mm × 2-mm WSON package.特性Efficiency > 90% at Nominal Operating Conditions Total DC Output Voltage Accuracy 5.0 V±2% Typical 30-µA Quiescent Current Best in Class Line and Load Transient Wide VIN Range From 2.3 V to 5.5 V Output Current up to 450 mA Automatic PFM/PWM Mode Transition Low Ripple Power Save Mode for Improved Efficiency at Light Loads Internal Softstart, 250-μs Typical Start-Up Time 3.5-MHz Typical Operating Frequency Load Disconnect During Shutdown Current Overload and Thermal Shutdown Protection Three Surface-Mount External Components Required (One MLCC Inductor, Two Ceramic Capacitors) Total Solution Size <13 mm2 Available in a 6-Pin DSBGA and 2-mm × 2-mm WSON Package

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    TPS61241YFFTTIIC REG BOOST 5V 600MA 6DSBGA 立即购买
    TPS61241YFFRTIIC REG BOOST 5V 0.6A SYNC 6DSBGA 立即购买

    技术资料

    标题类型大小(KB)下载
    IQ:它是什么、不是什么以及如何使用PDF470 点击下载
    Five Steps to a Good PCB Layout of the Boost ConverterPDF701 点击下载
    Design of UVLO for LM27313PDF142 点击下载
    Basic Calculation of a Boost Converter's Power StagePDF186 点击下载
    Performing Accurate PFM Mode Efficiency MeasurementsPDF451 点击下载

    应用案例更多案例

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