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3A的负载电流模脉宽调制（PWM）架构的降压型DC变换器CXSD62282输入电压4.5V～30V可调节的软启动功能
发表时间：2020-05-14
浏览次数：158

目录

1.产品概述       2.产品特点     4nU嘉泰姆

3.应用范围       4.技术规格书下载（PDF文档）4nU嘉泰姆

5.产品封装       6.电路原理图  4nU嘉泰姆

7.相关产品4nU嘉泰姆

   产品概述 返回TOP4nU嘉泰姆

     CXSD62282是一款采用电流模脉宽调制（PWM）架构的降压型DC-DC变换器，可以提供高达3A的负载电流，具有很好的线性和负载调整率。CXSD62282可以在宽输入电压范围4.5V～30V内稳定工作，通过外部电阻调节可容易实现0.8V~12V的输出电压。CXSD62282具有周期性的峰值电流限制和过温等保护机制，以确保芯片工作的安全性。芯片在关断模式下的静态电流可低至1μA以下。可调节的软启动功能可以很好的抑制浪涌电流和输出电压的过冲。CXSD62282可以通过少数量的标准外围器件实现变换器功能，有效的节省了设计空间。CXSD62282采用SOP-8封装，工作温度范围为-40°C到+85°C。The CXSD62282 is current mode, step-down switching regulator capable of driving 3A continuous load with excellent line and load regulation. The CXSD62282 can operate with an input voltage range from 4.5V to 30V and the output can be externally set from 0.8V to 12V with a resistor divider. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 1μA of supply current. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. The CXSD62282 require a minimum number of external components.

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 4nU嘉泰姆

• 35V的输入电压浪涌保护4nU嘉泰姆

• 高达3A的输出电流4nU嘉泰姆

• 内部集成0.135Ω的DMOS开关管4nU嘉泰姆

• 输入电压范围：4.5V至30V4nU嘉泰姆

• 输出电压可调：0.8V至12V4nU嘉泰姆

• 效率高达95%4nU嘉泰姆

• 关断电流低至1μA4nU嘉泰姆

• 500KHz恒定开关频率4nU嘉泰姆

• 过温保护和过流保护4nU嘉泰姆

• 输入过压/欠压锁定4nU嘉泰姆

• SOP-8 (EP)封装4nU嘉泰姆

• 符合RoHS规范及Pb-Free4nU嘉泰姆

 35V Input Surge Protection4nU嘉泰姆

 3A Output Current4nU嘉泰姆

 0.135 Internal DMOS Output Switch4nU嘉泰姆

 4.5V to 30V Input Operating Range4nU嘉泰姆

 Output Adjustable from 0.8V to 12V4nU嘉泰姆

 Up to 95% Efficiency4nU嘉泰姆

 1μA Shutdown Current4nU嘉泰姆

 Fixed 500KHz Frequency4nU嘉泰姆

 Thermal Shutdown and Overcurrent Protection4nU嘉泰姆

 Input Supply Overvoltage and Undervoltage4nU嘉泰姆

Lockout4nU嘉泰姆

 Available SOP-8 (EP) Package4nU嘉泰姆

 RoHS Compliant and 100% Lead(Pb)-Free4nU嘉泰姆

Halogen-Free4nU嘉泰姆

   应用范围 返回TOP4nU嘉泰姆

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• PC设备4nU嘉泰姆

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 PC Monitors4nU嘉泰姆

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 Networking Systems4nU嘉泰姆

 Portable Electronics4nU嘉泰姆

   技术规格书（产品PDF) 返回TOP 4nU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！4nU嘉泰姆

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电路原理图 返回TOP4nU嘉泰姆

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