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125kHz开关频率CV恒压CC恒流模式CXSD62346恒流开关稳压器电流1.0A至3A电阻可编程软启动 | |||||||||||||||||||||||||||||||||||||||||||
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目录7.相关产品 产品概述 返回TOP CXSD62345 CXSD62346 is a wide input voltage, high efficiency step-down DC/DC converter which operates in either CV (Constant Voltage) mode or CC (Constant Current) mode. This device includes a reference voltage source, oscillation circuit, error amplifier, integrated high-side power mos, a pwm controller and a constant current controller. CXSD62345 CXSD62346 provides up to 2.5A output current at 125kHz switching frequency. CC eliminates the expensive, high accuracy current sense resistor, making it ideal for battery charging applications and adaptors with accurate current limit. CCXSD62345 CXSD62346achieves higher efficiency than traditional constant current switching regulators by eliminating its associated power loss. Standard protection features include cycle by cycle current limit, thermal shutdown, and frequency fold-back at short circuit. The devices are available in a SOP-8EP package and require few external devices for operation.产品特点 返回TOP 40V Input Voltage Surge 32V Steady State Operation 2.5A output current Output Voltage up to 12V 125kHz Switching Frequency Eases EMI Design Sensor-less Constant Current Control Resistor Programmable − Current Limit from 1.0A to 3A − Cable Compensation from 0Ω to 0.3Ω ±5.0% CC Accuracy ±2.5% Feedback Voltage Accuracy Up to 95% Efficiency Extra Features − Integrated Soft Start − Thermal Shutdown − Cycle-by-Cycle Current Limit − ISET Short Protection SOP-8EP Package 应用范围 返回TOP Car Charger/ Adaptor Rechargeable Portable Devices General-Purpose CC/CV Supply 技术规格书（产品PDF) 返回TOP 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！ 产品封装图 返回TOP
电路原理图 返回TOP
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电源管理IC系列 |
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型号 |
输入电压 |
输出电压 |
最大输 出电流 |
封装 |
说明 |
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4.5to5.5V |
2.7V 2V |
SOT23-6 |
USB Dedicated Charging Port Controller USB专用充电端口控 制器双端口输出 |
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40V |
12V |
4.0A |
SOP-8EP |
125 KHz 4.0A/40V CC/CV Step-Down DC/DC Converter |
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40V |
12V |
3.5A |
SOP-8 |
125 KHz 3.5A/40V CC/CV Step-Down DC/DC Converter |
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40V |
12V |
1.5A |
SOP-8 |
125 KHz 2.5A/40V CC/CV Step-Down DC/DC Converter |
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40V |
12V |
1.5 |
SOP-8 |
125KHz 1.5A/40V CC/CV Step-Down DC/DC Converter |
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