GENERAL DEscriptION
The SGM66099 is an ultra-low quiescent current synchronous Boost converter. 0.9V to 5.2V operating input voltage is suitable for Li-Mn battery, NiMH and Li-Ion rechargeable batteries. The 0.6μA (TYP) quiescent current maximizes the light load efficiency and also increases the effective battery operation time. In addition, the high-side synchronous rectifier provides output disconnect feature which minimizes unnecessary current drawn from the battery during shutdown mode.
The SGM66099 is able to deliver 300mA output current from 3.3V to 5V conversion, and achieves up to 93% efficiency at 200mA load.
The device offers down mode where the desired output voltage is regulated even when input voltage is higher than the output. In addition, when the input voltage is 300mV above the output voltage set point, the device enters pass-through mode.
The device integrates various protection features such as over-voltage protection and thermal shutdown. In addition, the synchronous rectifier supports short circuit protection which further improves the robustness of the device.
The SGM66099 offers both adjustable output voltage and fixed output voltage versions. It is available in Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL packages.
FEATURES
Operating Input Voltage Range: 0.9V to 5.2V
Ultra-low Quiescent Current
0.6μA (TYP) Ultra-Low IQ into VOUT Pin
0.05μA (TYP) 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℃ to +85℃ Operating Ambient Temperature Range
Available in Green WLCSP-1.22×0.83-6B and TDFN-2×2-6AL Packages
APPLICATIONS
LCD and LED Bias
Portable and Wearable Applications
Low Power Wireless Applications
Battery Powered Systems