Synchronous Boost Converter with Ultra-Low Quiescent Current.
SGM66099A
SGM66099A.pdf
SGM66099A.pdf
No.14772
FEATURES
• Operating Input Voltage Range: 0.7V to 5.5V
• Adjustable Output Voltage from 1.8V to 5.5V
• 2.5V, 3.0V, 3.3V, 3.6V and 5.0V Fixed Output
Voltage Versions
• Up to 93% Efficiency from 10mA to 300mA Load
• Ultra-Low Quiescent Current
0.6µA (TYP) Ultra-Low IQ into VOUT Pin
0.07µA (TYP) Ultra-Low IQ into VIN Pin
• 1.2MHz Fixed Frequency Operation
• Power-Save Mode for Improved Efficiency at Low
Output Power
• True Disconnection during Shutdown
• Available in Green WLCSP-0.85×1.32-6B and
TDFN-2×2-6AL Packages
DESCRIPTION
The SGM66099A is an ultra-low quiescent current synchronous Boost converter. 0.7V to 5.5V operation 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.
The SGM66099A is able to deliver 300mA output current from 3.3V to 5V conversion, and achieves up to 93% efficiency at 200mA load.
The SGM66099A offers down mode and pass-through mode. In down mode, the desired output voltage is regulated even when the input voltage is higher than the output. In addition, when the input voltage is 270mV above the output voltage set point, the device enters pass-through mode. In pass-through mode, the output voltage follows input voltage.
The device integrates various protection features such as over-current protection, over-voltage protection and thermal shutdown. In addition, the synchronous rectifier supports short-circuit protection which further improves the robustness of the device.
The SGM66099A provides both adjustable output voltage version and fixed output voltage versions. It is available in Green WLCSP-0.85×1.32-6B and TDFN-2×2-6AL packages.
APPLICATION CIRCUIT
PIN CONFIGUTION
