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The CXSD62639 is a CMOS step-down DC/DC regulator composed of a reference voltage source, an oscillation circuit, a comparator, and a PWM/PFM control circuit. The PWM/PFM automatic switching control circuit is used to achieve adjustable duty cycle, which has the characteristics of low ripple, high efficiency and large output current in the whole input voltage range. The built-in power MOSFET integrates many protection circuits such as overvoltage, overcurrent, overheating, short circuit, etc., and will automatically disconnect when the control value is exceeded to protect the chip. This product combines the characteristics of miniature packaging and low current consumption, and is most suitable for use inside the power supply of mobile devices.

   Product FeaturesReturn to Topyj9嘉泰姆

High efficiency Maximum efficiency up to 95%yj9嘉泰姆
The maximum output current 2Ayj9嘉泰姆
Ultra-low quiescent current 60 μA(PFM)yj9嘉泰姆
Very small output ripple <± 0.4%yj9嘉泰姆
Low voltage operation up to 100% duty cycleyj9嘉泰姆
PWM/PFM automatic switching duty cycle is automatically adjustable to maintain high efficiency and low ripple over the full load rangeyj9嘉泰姆
Short circuit protectionyj9嘉泰姆

   Scope of applicationReturn to Topyj9嘉泰姆

Power supply for mobile devices such as digital cameras, electronic notebooks, PDAs, etc.yj9嘉泰姆
A regulated power supply for cameras, video equipment, and communication equipment.yj9嘉泰姆
Microcomputer power supplyyj9嘉泰姆
Set-top boxyj9嘉泰姆

   Technical Specification (Product PDF)Return to Top yj9嘉泰姆

If you need detailed PDF specifications, please scan WeChat and contact us. You can also get free samples and technical support.!yj9嘉泰姆

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   Product packaging diagramReturn to Topyj9嘉泰姆

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   Circuit schematicReturn to Topyj9嘉泰姆

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