ZCC66099 低功耗升压芯片替代SGM66099

1.GENERAL DESCRIPTION

The  ZCC66099  is a synchronous step-up converter with 0.65μA ultra low quiescent current. It is designed for products powered by alkaline battery, NiMH rechargeable battery, Li-Mn battery or rechargeable Li-Ion battery, for which high efficiency under light load

condition is critical to achieve long battery life operation.

The  ZCC66099 step-up converter only consumes 0.65μA quiescent current under light load condition and can  achieve up to 75% efficiency at 10μA load with fixed output voltage version. It can also support up to 300mA output current from 3.3V to 5V conversion, and achieve up to 93% efficiency at 200mA load.

The  ZCC66099  also offers both down mode  andpass-through operation for different applications.  In down mode, the output voltage can still be regulated at target value even when input voltage is higher than output voltage. In pass-through mode, the output voltage follows input voltage. The ZCC66099 exits down mode and enters into pass-through mode when VIN > VOUT + 0.3V.

The  ZCC66099 supports true shutdown function when it is disabled, which disconnects the load from the input supply to reduce the current consumption.

The ZCC66099  offers both adjustable output voltage version and fixed output voltage versions. It is available in Green WLCSP-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 Improved Efficiency at Low Output Power

●  Regulated Output Voltage in Down Mode

●  True Disconnection During Shutdown

●  Up to 75% Efficiency at 10μA Load with Fixed Output Voltage Version

●Up to 93% Efficiency from 10mA to 300mA Load -40℃

Range to +85℃ Operating Ambient Temperature

●  Available in Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL Packages

3.APPLICATIONS

●Memory LCD Bias

●Optical Heart Rate Monitor LED Bias

●Wearable Applications

●Low Power Wireless Applications

●Portable Products

●Battery Powered Systems

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