CXSD6270高效同步降压DC-DC转换器2.7v至5.5v的宽输入电压脉冲跳过调制(PSM)100%的占空比

发布时间:2020-04-20 14:41:10 浏览次数:301 作者:oumao18 来源:嘉泰姆
摘要:CXSD6270是一款高效、同步降压DC-DC转换器,专为电池供电的便携式应用而优化它支持高达1.2A的输出电流该装置具有2.7v至5.5v的宽输入电压范围,支持电压范围扩大的单锂离子电池、2和3个碱性电池、3.3v和5v的输入电压范围。
CXSD6270高效同步降压DC-DC转换器2.7v至5.5v的宽输入电压脉冲跳过调制(PSM)100%的占空比

                          目录xrP嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载(PDF文档)xrP嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品xrP嘉泰姆

一.产品概述xrP嘉泰姆


     The CXSD6270 is a high efficiency, synchronous step down DC-DC converter optimized for battery powered portable applications. It supports up to 1.2A output current. With a wide input voltage range of 2.7V to 5.5V, the device supports applications powered by single Li-ion battery with extended voltage range, two and three alkaline cell, 3.3V and 5V input voltage range. The CXSD6270 operates at 1.5MHz fixed switching frequency with Pulse-Width-Modulation (PWM) and enters Pulse-Skipping-Modulation (PSM) operation at light load current to maintain high efficiency over the entire load current range. 100% duty cycle capability provides low dropout operation, extending battery life in portable systems. xrP嘉泰姆

    The switching frequency is internally set at 1.5MHz, allowing the use of tiny surface mount inductor and input/output capacitors. Low output voltage is easily supported with the 0.6V feedback reference voltage.        xrP嘉泰姆

    The CXSD6270 is available in SOT-23-5L package. Standard product is Pb-free and Halogen-free. xrP嘉泰姆

二.产品特点xrP嘉泰姆


  Input voltage range : 2.7~5.5VxrP嘉泰姆

  Continue output current : 1.2AxrP嘉泰姆

  Switching frequency : 1.5MHz (Typ.)xrP嘉泰姆

  Efficiency : Up to 92%xrP嘉泰姆

  Feedback reference voltage : 0.6VxrP嘉泰姆

  100% duty cycle for low dropout operationxrP嘉泰姆

  Adjustable Output VoltagexrP嘉泰姆

三.应用范围xrP嘉泰姆


  CellphonesxrP嘉泰姆

  PADsxrP嘉泰姆

  STBsxrP嘉泰姆

  DSCs   xrP嘉泰姆

四.技术规格书(产品PDF)xrP嘉泰姆


需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持xrP嘉泰姆

 QQ截图20160419174301.jpgxrP嘉泰姆

五.产品封装图xrP嘉泰姆


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六.电路原理图xrP嘉泰姆


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七.相关芯片选择指南   更多同类产品......xrP嘉泰姆


降压型开关稳压器
Product VIN VOUT IOUT IQ Freq. VFB Efficiency PD(@TA = 25¡ãC) Package
Min Max Min Max Max Typ  Typ Typ  Max Max
(V)  (V)  (mA)  (uA)  (KHz) (V)  % (W) 
CXSD6271 2.7 5.5 1 4 2000 80 1000 0.6 96% 0.5 SOT-23-5L
CXSD6272 3 5.5 1 4 2000 80 1000 0.6 96 0.5 SOT-23-5L
CXSD6270 2.7 5.5 1 4 1200 65 1500 0.6 92 0.5 SOT-23-5L
CXSD6269 2.7 5.5 1 4 600 22 1500 0.6 95 0.5 SOT-23-5L

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