Au8310 High Efficiency Low Quiescent Current Buck-Boost Converter with I2C Interface
●The Au8310 is a high-current, buck-boost switching converter for systems using new battery chemistries. It maintains voltage regulation while providing excellent efficiency and very low output voltage ripple when the input voltage is close to the output voltage.
●The Au8310 is capable of delivering at least 2.5A continuous output current (VOUT=3.3V) across a battery voltage range of 2.5V to 4.5V. This maximizes the energy utilization of advanced, single-cell Li-ion battery chemistries that have significant capacity left at voltages below the system voltage. The Au8310 supports a broader set of programmable features that can be accessed using an I2C interface. With a programmable output voltage range of 1.8V to 5.2V, the Au8310 is ideal for applications which require dynamically changing supply voltages. A programmable slew rate can be selected to provide smooth transitions between different output voltage settings.
●The Au8310 is available in a 15 bump, 0.4mm pitch WLCSP (1.38mmx 2.28mm) with a 2.5MHz switching frequency, which further reduces the size of external components.
■Features:
●Automatic and Seamless Transition Between Buck, Buck-Boost and Boost operation.
●Maintains Steady Output Voltage at Wide Input Voltage Range from 2.3V to 5.5V.
●Output Current:
◆2.5A for V-IN≥2.5V, V-OUT=3.3V;
◆2.5A for V-IN≥2.8V, V-OUT=3.5V.
◆3A 2%duty pulse current(T=60s) for V-IN=3.6V, V-OUT=4.7V.
●2.5MHz Typical Switching Frequency.
●Integrated Soft Start.
●I2C interface (Up to 1MHz).
●Programmable Output Voltage and Slew-rate with I2C interface.
●VSEL Pin to toggle between two output voltage presets.
●High Efficiency: Up to 95.5%.
●15μA V-IN Quiescent Current when ENABLE BIT=0 in CONTROL Register.
●EN pin Shutdown Function with Less Than 1μA Quiescent Current.
●Output Capacitor Discharge Function to Bleed Output.
●Over-Temperature Protection, Over-Current Protection, Short Circuit Protection and Input Voltage Protection, Over Output Voltage Protection.
●Small 1.38mmx2.28mm, 15-pin WLCSP.
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High Efficiency Low Quiescent Current Buck-Boost Converter 、 high-current, buck-boost switching converter |
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Datasheet |
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Please see the document for details |
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WLCSP |
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English Chinese Chinese and English Japanese |
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25th,Jan 2022 |
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3.7 MB |
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