SGM66055 2.2MHz, Fixed Output Synchronous Tiny Step-Up Converter with a 4A Switch
●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 the Green WLCSP- 1.21×1.21-9B package; the SGM66055-5.0 is available in the Green WLCSP-1.21×1.21-9B and TDFN-2×3-8BL packages. They operate over an ambient temperature range of -40°C to +85°C.
■FEATURES
●93% Efficient Synchronous Boost Converter
●Device Quiescent Current: 23μ A (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 V-OUT > V-IN
●Over-Temperature Protection
●Available in Green WLCSP-1.21×1.21-9B and TDFN-2×3-8BL Packages
●-40°C to +85°C Operating Temperature Range
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SGM66055 、 SGM66055-4.5 、 SGM66055-5.4 、 SGM66055-5.0 、 SGM66055-4.5YG/TR 、 SGM66055-5.0YG/TR 、 SGM66055-5.4YG/TR 、 SGM66055-5.0YTDC8G/TR |
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2.2MHz, Fixed Output Synchronous Tiny Step-Up Converter with a 4A Switch |
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[ Class-D Audio Amplifier ][ USB OTG Supply ][ Low-Voltage Li-Ion Batteries ][ Smart Phones ][ Tablets ][ Portable Devices ][ Wearables ] |
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Datasheet |
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Please see the document for details |
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WLCSP-1.21X1.21-9B;TDFN-2x3-8BL |
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English Chinese Chinese and English Japanese |
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NOVEMBER 2021 |
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REV.A.2 |
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1.5 MB |
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