GENERAL DEscriptION
The SGM66055B is an internally compensated, 2.2MHz switching frequency, current mode, synchronous Boost switching converter. The SGM66055B supports up to 800mA load current from a battery as low as 2.65V, and the output voltage is fixed at 5.0V. This device turns into power-save mode to maintain high efficiency at light load currents. Its output is disconnected by the rectifier circuit during shutdown with no input to output leakage.
The SGM66055B has built-in protection features such as short-circuit protection, over-current protection and thermal shutdown.
The SGM66055B is available in a Green WLCSP-1.21×1.21-9B package.
FEATURES
2.5V to 4.85V Operating Input Voltage Range
5.0V Fixed Output Voltage
IOUT ≥ 1A at VOUT = 5V, VIN ≥ 2.7V
Up to 97% Efficiency
Device Quiescent Current: 24μA (TYP)
Shutdown Current: 1μA (MAX)
Improved Light Load Efficiency with Power-Save Mode (PSM)
Low Reverse Leakage Current when VOUT > VIN
Load Disconnect during Shutdown
Thermal Shutdown
-40℃ to +85℃ Operating Temperature Range
Available in a Green WLCSP-1.21×1.21-9B Package
APPLICATIONS
USB OTG
Single-Cell Li-Ion Battery Power Supply
Smart Phones and Tablets
Portable and Wearable Devices