FEATURES
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% at 200mA load.
The ZCC66099 also offers both down mode and pass-
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.
TYPICAL APPLICATION
●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 300mALoad
●-40℃ to +85℃ Operating Temperature Range
●Available in Green WLCSP-1.22×0.83-6B and
TDFN-2×2-6AL Packages
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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