constant-on-time 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 CXSD62548

   产品概述 返回TOPXH9嘉泰姆

Internal 20mΩ power and 10mΩ 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.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 CXSD62548 is a high-efficiency synchronous step down DC/DC regulator featuring internal power and synchronous rectifier switches capable of delivering 8A of continuous output current and up to 16A peak output current over a wide input voltage range of 4V to 28V.The CXSD62548 is available in a compact QFN3X3-12 package.

   产品特点 返回TOPXH9嘉泰姆

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·       Fast Transient ResponseXH9嘉泰姆

·       Wide Input Voltage Range: 4-28VXH9嘉泰姆

·       Internal 20mΩ Power Switch And 10mΩ Synchronous RectifierXH9嘉泰姆

·       8A Continuous/16A Peak Output Current CapabilityXH9嘉泰姆

·       Accurate Feedback Reference Voltage: 0.6V ±1 %XH9嘉泰姆

·       Pseudo-Constant 800kHz Operating FrequencyXH9嘉泰姆

·       Automatic High Efficiency Discontinuous Operating Mode at Light LoadsXH9嘉泰姆

·       Internal 600μS Soft-Start Limits Inrush CurrentXH9嘉泰姆

·       Programmable Valley Current LimitXH9嘉泰姆

·       Power Good IndicatorXH9嘉泰姆

·       Output Discharge FunctionXH9嘉泰姆

·       Cycle-By-Cycle Current LimitXH9嘉泰姆

·       Hiccup Mode Output Short Circuit And Over Voltage ProtectionXH9嘉泰姆

·       Over Temperature ProtectionXH9嘉泰姆

·       Compact Package: QFN3x3-12XH9嘉泰姆

   应用范围 返回TOPXH9嘉泰姆

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·       LCD-TV/Net-TV/3DTVXH9嘉泰姆

·       Set Top BoxXH9嘉泰姆

·       NotebookXH9嘉泰姆

·       High Power APXH9嘉泰姆

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