• [ CXMD3256 ]

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1.产品概述       2.产品特点     omY嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）omY嘉泰姆

5.产品封装       6.电路原理图  omY嘉泰姆

7.相关产品omY嘉泰姆

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产品概述 返回TOPomY嘉泰姆

The CXMD3256 is a voltage mode, fixed 200kHz/300kHz/600kHz switching frequency,synchronous buck converter. The CXSD6296 allows wide input voltage that is either a single 5~1 2V or two supply voltage(s) for various applications. A power-on-reset (POR) circuit monitors the VCC supply voltage to prevent wrong logic controls. Abuilt- in soft-start circuit prevents the output voltages from over- shoot as well as limits the input current. An internal 0.6V/0.8V Temperature-compensated reference voltage with high accuracy is designed to meet the requirement of low out- put voltage applications. The CXSD6296 provides excel- lent output voltage regulations against load current variation. The controller’s over-current protection monitors the out- put current by using the voltage drop across the RDS (ON) of low-side MOSFET, eliminating the need for a cur- rent sensing resistor that features high efficiency and low cost. In addition, the CXMD3256 also integrates excel- lent protection functions. The over-voltage protection (OVP), under-voltage protection (UVP). OVP circuit which monitors the FB voltage to prevent the PWM output from over voltage, and UVP circuit which monitors the FB voltage to prevent the PWM output from under voltage or short circuit.The CXMD3256 is available in SOP-8P packages

   产品特点 返回TOPomY嘉泰姆

Wide 5V to 12V Supply VoltageomY嘉泰姆

Power-On-Reset Monitoring on VCComY嘉泰姆

Excellent Output Voltage RegulationsomY嘉泰姆

0.6V Internal Reference for CXMD3256/A/DomY嘉泰姆

0.8V Internal Reference for CXMD3256B/ComY嘉泰姆

±0.6% Over-Temperature RangeomY嘉泰姆

Integrated Soft-StartomY嘉泰姆

Voltage Mode PWM Operation with External CompensationomY嘉泰姆

Up to 90%DutyRatio for Fast Transient ResponseomY嘉泰姆

Constant Switching FrequencyomY嘉泰姆

300kHz ±10% for CXMD3256/BomY嘉泰姆

200kHz ±10% for CXMD3256ComY嘉泰姆

600kHz ±10% for CXMD3256A/DomY嘉泰姆

Integrated Bootstrap Forward P-CH MOSFETomY嘉泰姆

50%Under-Voltage ProtectionomY嘉泰姆

125%Over-Voltage ProtectionomY嘉泰姆

Adjustable Over-Current Protection ThresholdomY嘉泰姆

Using the RDS(ON) of Low-Side MOSFETomY嘉泰姆

Shutdown Control byCOMPomY嘉泰姆

SOP-8P PackageomY嘉泰姆

Lead Free and Green Devices AvailableomY嘉泰姆

   应用范围 返回TOPomY嘉泰姆

Graphic CardsomY嘉泰姆

DSL, Switch HUBomY嘉泰姆

Wireless LanomY嘉泰姆

Notebook ComputeromY嘉泰姆

Mother BoardomY嘉泰姆

    LCD Monitor/TVomY嘉泰姆

   技术规格书（产品PDF) 返回TOP omY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！omY嘉泰姆

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产品封装图 返回TOPomY嘉泰姆

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电路原理图 返回TOPomY嘉泰姆

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◀ 上一篇:CXMD3255电压模式固定300kHz开关频率同步降压转换器宽输入电压5~12V上电复位POR电路监测VCC电源电压防止错误的逻辑控制外部补偿的l电压模式PWM控制

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