• [ CXMD3256 ]

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目录

1.产品概述       2.产品特点     aNR嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）aNR嘉泰姆

5.产品封装       6.电路原理图  aNR嘉泰姆

7.相关产品aNR嘉泰姆

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产品概述 返回TOPaNR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TOPaNR嘉泰姆

Wide 5V to 12V Supply VoltageaNR嘉泰姆

Power-On-Reset Monitoring on VCCaNR嘉泰姆

Excellent Output Voltage RegulationsaNR嘉泰姆

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

0.8V Internal Reference for CXMD3256B/CaNR嘉泰姆

±0.6% Over-Temperature RangeaNR嘉泰姆

Integrated Soft-StartaNR嘉泰姆

Voltage Mode PWM Operation with External CompensationaNR嘉泰姆

Up to 90%DutyRatio for Fast Transient ResponseaNR嘉泰姆

Constant Switching FrequencyaNR嘉泰姆

300kHz ±10% for CXMD3256/BaNR嘉泰姆

200kHz ±10% for CXMD3256CaNR嘉泰姆

600kHz ±10% for CXMD3256A/DaNR嘉泰姆

Integrated Bootstrap Forward P-CH MOSFETaNR嘉泰姆

50%Under-Voltage ProtectionaNR嘉泰姆

125%Over-Voltage ProtectionaNR嘉泰姆

Adjustable Over-Current Protection ThresholdaNR嘉泰姆

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

Shutdown Control byCOMPaNR嘉泰姆

SOP-8P PackageaNR嘉泰姆

Lead Free and Green Devices AvailableaNR嘉泰姆

   应用范围 返回TOPaNR嘉泰姆

Graphic CardsaNR嘉泰姆

DSL, Switch HUBaNR嘉泰姆

Wireless LanaNR嘉泰姆

Notebook ComputeraNR嘉泰姆

Mother BoardaNR嘉泰姆

    LCD Monitor/TVaNR嘉泰姆

   技术规格书（产品PDF) 返回TOP aNR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！aNR嘉泰姆

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产品封装图 返回TOPaNR嘉泰姆

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电路原理图 返回TOPaNR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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