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          帕智電子(上海)有限公司

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          SGM66055

          2.2MHz, Fixed Output Synchronous Tiny Step-Up Converter with a 4A Switch
           
          2.2MHz, Fixed Output Synchronous Tiny Step-Up Converter with a 4A Switch
          GENERAL DESCRIPTION

          The SGM66055 is an internally compensated, 2.2MHz switching frequency, current mode, synchronous step-up switching regulator. Even below the minimum system battery voltage, the device maintains the output voltage regulation for a minimum output load current of 0.9A. This device turns into power-saving mode to maintain high efficiency by lowering switching frequency. With its anti-ringing circuitry damping the charge in parasitic capacitor, it reduces EMI interference significantly. Its output is disconnected by the rectifier circuit during shutdown, with no input to output leakage.

          The SGM66055-4.5/5.4 are available in a Green WLCSP-1.21×1.21-9B package; the SGM66055-5.0 is available in Green WLCSP-1.21×1.21-9B and TDFN-2×3-8BL packages. They operate over an ambient temperature range of -40 to +85.

          PIN CONFIGURATIONS

          66055.png

          FEATURES
          • 93% Efficient Synchronous Boost Converter

          • Device Quiescent Current: 23μA (TYP)

          • Less than 1μA Shutdown Current

          • Operating Input Voltage Range: 2.5V to 4.5V

          • Fixed Output Voltages: 4.5V, 5.0V and 5.4V

          • Output Voltage Clamping: 5.7V

          • Power-Save Mode for Improved Efficiency at Low Output Power

          • Load Disconnect During Shutdown

          • Low Reverse Leakage Current when VOUT > VIN

          • Over-Temperature Protection

          • Available in Green WLCSP-1.21×1.21-9B and TDFN-2×3-8BL Packages

          • -40 to +85 Operating Temperature Range

          APPLICATIONS

          Class-D Audio Amplifier and USB OTG Supply

          Boost for Low-Voltage Li-Ion Batteries

          Smart Phones, Tablets, Portable Devices, Wearables

          ORDERING INFORMATION
          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM66055-5.0YTDC8G/TRProductionTDFN-2×3-8BL8Y-40℃ to +85℃
          SGM66055-5.4YG/TRProductionWLCSP-1.21×1.21-9B9Y-40℃ to +85℃
          SGM66055-5.0YG/TRProductionWLCSP-1.21×1.21-9B9Y-40℃ to +85℃
          SGM66055-4.5YG/TRProductionWLCSP-1.21×1.21-9B9Y-40℃ to +85℃

           

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