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          SGM66051

          Efficient Synchronous Step-Up Converter with a 2.7A Switch in TSOT-23 Package
           
          Efficient Synchronous Step-Up Converter with a 2.7A Switch in TSOT-23 Package
          GENERAL DESCRIPTION

          The SGM66051 is an internally compensated, 1.1MHz switching frequency, current mode, synchronous step- up switching regulator, which is capable of generating 5V output at 1A load current from a 3.3V rail.

          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 SGM66051-5.1 and SGM66051-5.4 are preset for outputting 5.1V and 5.4V, while the SGM66051-ADJ is output voltage programmable with an external resistor divider.

          The device is available in a Green TSOT-23-6 package and operates over an ambient temperature range of -40℃ to +85.

          PIN CONFIGURATIONS

          66051.png

          FEATURES
          • 90% Efficient Synchronous Boost Converter

          • Device Quiescent Current: 20μA (TYP)

          • Less than 1μA Shutdown Current

          • Operating Input Voltage Range: 2.2V to 4.5V

          • Fixed Output Voltages: 5.1V and 5.4V

          • Output Voltage Clamping: 6V

          • Adjustable Output Voltage Up to 5.5V

          • 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 a Green TSOT-23-6 Package

          • -40 to +85 Operating Temperature Range

          APPLICATIONS

          Single-Cell Li-Ion Powered Products

          Portable Audio Players

          Cellular Phones

          Personal Medical Products

          ORDERING INFORMATION
          Part NumberStatusPackagePinsPb-FreeTemp Range
          SGM66051-ADJYTN6G/TRProductionTSOT-23-66Y-40℃ to +85℃
          SGM66051-5.4YTN6G/TRProductionTSOT-23-66Y-40℃ to +85℃
          SGM66051-5.1YTN6G/TRProductionTSOT-23-66Y-40℃ to +85℃

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