产品概述 返回TOPaA1嘉泰姆

 proprietary Instant-PWM™ fast-response, constant-on-time (COT) PWM control method supports high input/output voltage ratios (low duty cycles), and fast transient response while maintaining a near constant operating frequency over line, load and output voltage ranges. This control method provides stable operation without complex compensation and even with low ESR ceramic capacitors.The CXSD62547 is a high efficiency synchronous step-down DC/DC regulator featuring internal power and synchronous rectifier switches capable of delivering 6A of continuous output current and up to 12A peak output current over a wide input voltage range of 4V to 28V.Internal 40mΩ power and 20mΩ synchronous rectifier switches provide excellent efficiency over a range of applications, especially for low output voltages and low duty cycles. Cycle-by-cycle current limit, input under voltage lock-out, internal soft-start, output under- and over-voltage protection, and thermal shutdown provide safe operation in all operating conditions.The CXSD62547 is available in a compact QFN3X3-12 package.

   产品特点 返回TOPaA1嘉泰姆

 aA1嘉泰姆

·       Fast Transient ResponseaA1嘉泰姆

·       Wide Input Voltage Range: 4-28VaA1嘉泰姆

·       Internal 40mΩ Power Switch and 20mΩ Synchronous RectifieraA1嘉泰姆

·       6A Continuous 12A Peak Output Current CapabilityaA1嘉泰姆

·       Accurate Feedback Reference Voltage: 0.6V ±1.5%aA1嘉泰姆

·       Pseudo-Constant 800kHz Operating FrequencyaA1嘉泰姆

·       Automatic High Efficiency Discontinuous Operating Mode at Light LoadsaA1嘉泰姆

·       Internal 600μS Soft-Start Limits Inrush CurrentaA1嘉泰姆

·       Programmable Valley Current LimitaA1嘉泰姆

·       Power Good IndicatoraA1嘉泰姆

·       Output Discharge FunctionaA1嘉泰姆

·       Cycle-By-Cycle Current LimitaA1嘉泰姆

·       Hiccup Mode Output Short-Circuit and Over-Voltage ProtectionaA1嘉泰姆

·       Over Temperature ProtectionaA1嘉泰姆

·       Compact Package: QFN3x3-12aA1嘉泰姆

   应用范围 返回TOPaA1嘉泰姆

 aA1嘉泰姆

·       Portable ComputingaA1嘉泰姆

·       LCD-TVaA1嘉泰姆

·       Set Top BoxaA1嘉泰姆

·       High Power Access PointsaA1嘉泰姆

   技术规格书（产品PDF) 返回TOP aA1嘉泰姆

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