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      深圳市利盛達科技有限公司 利盛達科技讓電源設計更便捷可靠|聯系電話:13928434054
      請輸入料號
      RT8010,1.5MHz, 1A, 高效PWM降壓DC/DC

      RT8010】1.5MHz, 1A, 高效PWM降壓DC/DC

      • 將RT8010添加至收藏夾 用郵件咨詢RT8010的相關信息 就RT8010 QQ咨詢,也可電話至139 2843 4054。

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        如有任何問題,請聯系新市場拓展部24小時服務熱線:139 2843 4054;
        sales@lsdtek.com;
      RT8010 詳細介紹
      相關商品: RT8010PQW MP1484 AT1366 OCP2150 APS1006 LM3671 LM3670 XC9226 XM5063 XM5064

      RT8010 】1.5MHz,1A 帶軟啟功能的同步降壓型變換器
      RT8010 】概述
      RT8010 是一款采用固定頻率,電流模,PWM架構的降壓型變換器。該芯片集成了主開關管和同步管以提高效率。2.5V到5.5V的輸入電壓范圍使得RT8010 適用于采用單節鋰離子電池或3節NiMH/NiCd電池的便攜系統。輸出電壓可低至0.6V。RT8010 可提供1A的輸出電流,并可提供100%占空比的低壓降運行,延長了電池在便攜系統中的壽命。 開關頻率在內部被設定為1.5MHz,因此可使用小型表面貼裝電感器和電容器。內置同步管提高了效率且不需要外接肖特基二極管。RT8010 有可調版本和1.2V、1.8V和3.3V固定輸出版本。  

      RT8010 】特點:
      RT8010 效率高達96%
      1.5MHz固定開關頻率
      RT8010 高達1A的輸出電流
      RT8010 典型270μA靜態電流
      2.5V至5.5V的輸入電壓范圍
      RT8010 低至0.6V的可調輸出電壓
      100%占空比低壓降工作
      RT8010 無需肖特基二極管
      RT8010 短路和過溫保護
      RT8010 出色的穩壓和負載瞬態響應
      RT8010 關斷電流<1μA
      RT8010 帶軟啟功能
      RT8010 過壓保護
      RT8010 可提供1.2V、1.8V、3.3V和可調輸出電壓
      TDFN-6封裝
      RT8010 符合RoHS規范及Pb-Free  

      RT8010 應用
      蜂窩電話
      便攜媒體播放器/MP3播放器
      數碼相機設備和攝影機
      便攜儀器
      PC設備

      RT8010 General Description

      The RT8010/A is a high efficiency Pulse-Width-Modulated (PWM) step-down DC/DC converter. Capable of delivering 1A output current over a wide input voltage range from 2.5V to 5.5V, the RT8010/A is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources such as cellular phones, PDAs and hand-held devices.Two operating modes are available including : PWM/Low-Dropout autoswitch and shutdown modes. The Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application.The RT8010/A enters Low Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper P-MOSFET. RT8010/A enter shut-down mode and consumes less than 0.1μA when EN pin is pulled low.The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operating frequency of 1.5MHz. This along with small WDFN-6L 2x2 and WQFN-16L 3x3 package provides small PCB area application. Other features include soft start, lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection.

       RT8010  Ordering Info

      Note :
      Richtek Pb-free and Green products are :
      ► RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
      ► Suitable for use in SnPb or Pb-free soldering processes.

       RT8010  Features

      • +2.5V to +5.5V Input Range
      • Output Voltage (Adjustable Output From 0.6V to VIN)
        ♦ RT8010 : 1.0V, 1.2V, 1.5V, 1.6V, 1.8V, 2.5V and 3.3V Fixed/Adjustable Output Voltage
        ♦ RT8010A Adjustable Output Voltage Only
      • 1A Output Current
      • 95% Efficiency
      • No Schottky Diode Required
      • 1.5MHz Fixed-Frequency PWM Operation
      • Small 6-Lead WDFN and 16-Lead WQFN Package
      • RoHS Compliant and 100% Lead (Pb)-Free

       RT8010  Application

      • Mobile Phones
      • Personal Information Appliances
      • Wireless and DSL Modems
      • MP3 Players
      • Portable Instruments

       RT8010  Pin Configurations

      (TOP VIEW)
      WQFN-16L 3x3 (RT8010A)
      WDFN-6L 2x2 (RT8010)

       RT8010  Typical Applications Circuit

      Figure 1. Fixed Voltage Regulator

      with R2 = 300kΩ to 60kΩ so the IR2 = 2μA to 10μA,
      and (R1 x C1) should be in the range between 3x10-6 and 6x10-6 for component selection.

      Figure 2. Adjustable Voltage Regulator


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