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ZCC66099 低功耗升压芯片替代SGM66099 1.GENERALDESCRIPTION The ZCC66099 is a synchronous step-up converter with 0.65μA ultra low quiescentcurrent. It is designed for products powered by alkaline battery, NiMH rechargeablebattery, Li-Mn battery or rechargeable Li-Ion battery, for which highefficiency under light load conditionis critical to achieve long battery life operation. The ZCC66099 step-up converter only consumes 0.65μAquiescent current under light load condition and can achieve up to 75% efficiency at 10μA loadwith fixed output voltage version. It can also support up to 300mA outputcurrent from 3.3V to 5V conversion, and achieve up to 93% efficiency at 200mAload. The ZCC66099 also offers both down mode andpass-throughoperation for different applications. Indown mode, the output voltage can still be regulated at target value even wheninput voltage is higher than output voltage. In pass-through mode, the output voltagefollows input voltage. The ZCC66099 exits down mode and enters intopass-through mode when VIN > VOUT + 0.3V. The ZCC66099 supports true shutdown function whenit is disabled, which disconnects the load from the input supply to reduce thecurrent consumption. TheZCC66099 offers both adjustable outputvoltage version and fixed output voltage versions. It is available in GreenWLCSP-1.22×0.83-6B and TDFN-2×2-6AL packages. 2.FEATURES ● Operating Input Voltage Range: 0.9V to 5.2V ● Ultra Low Quiescent Current 0.6μA Ultra Low IQ into VOUT Pin 0.05μA Ultra Low IQ into VIN Pin ● 1.2MHz Fixed Frequency Operation ● Adjustable Output Voltage from 2.5V to 5.2V ● Fixed Output Voltage Versions Available ● Power-Save Mode for ImprovedEfficiency at Low Output Power ● Regulated Output Voltage in Down Mode ● True Disconnection During Shutdown ● Up to 75% Efficiency at 10μA Load with Fixed Output VoltageVersion ●Up to 93% Efficiency from 10mA to300mA Load -40℃ Range to +85℃ Operating Ambient Temperature ● Available in Green WLCSP-1.22×0.83-6B and TDFN-2×2-6ALPackages 3.APPLICATIONS ●Optical Heart Rate Monitor LEDBias ●Wearable Applications ●Low Power Wireless Applications ●Portable Products ●Battery Powered Systems
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发表于 2023-5-12 14:27:32