GENERAL DEscriptION
The SGM6623 is a general-purpose miniature Boost DC/DC switching regulator with high efficiency for battery backup and standby power systems. The acceptable input voltage range of 0.8V to 12V can be converted to a regulated 3.3V to 13V output voltage with efficiency as high as 90%. SGM6623 can be used as backup charger for systems with 1- to 4-cell batteries. It operates at a 600kHz (TYP) switching frequency, allowing the use of small and low-profile inductor for compact design. It also has several built-in protection features, such as cycle-by-cycle over-current limit, soft-start, thermal shutdown and open loop over-voltage protection.
The SGM6623 is available in a Green SOT-23-6 package.
FEATURES
0.8V to 12V Input Voltage Range
3.3V to 13V Wide Output Voltage Range
4.4A Current Limited Integrated Switch
Up to 90% Efficiency
600kHz Nominal Fixed Switching Frequency with Pulse Skipping at Light Loads
Built-In Soft-Start Function
Open Loop Over-Voltage Protection
Enable Input Pin
47μA Typical Quiescent Current (to VS Pin)
0.4μA Typical Supply Current in Shutdown
Available in a Green SOT-23-6 Package
APPLICATIONS
Mobile Phones
Portable Equipment
Hand-Held Instruments
1-, 2-, 3- or 4-Cell Battery Systems