GENERAL DEscriptION
The SGM6605 is a constant frequency, current mode, synchronous boost switching regulator. The input voltage can accept the voltage at a range from 2.7V to 5.5V. And the output voltage is adjustable with a peak of 5.2V. This device also has the 5.0V fixed output version.
High switching frequency minimizes the sizes of inductor and capacitor. Integrated power MOSFETs and internal compensation make the SGM6605 simple to use and fit the total solution into a compact space.
The SGM6605 enters the power-save mode at light loads to maintain high efficiency. Anti-ringing control circuitry reduces EMI concerns by damping the inductor in discontinuous mode. The SGM6605 provides true output disconnection, allowing VOUT to go to 0V during shutdown without drawing any current from the input source. The SGM6605 supports 1.8V logic for control.
The output voltage of SGM6605-ADJ can be programmed by an external resistor divider, and that of SGM6605-5.0 is fixed internally on the chip. The device is available in a Green SOT-23-6 package. It operates over an ambient temperature range of -40℃ to +85℃.
FEATURES
2.7V to 5.5V Input Voltage Range
5.0V Fixed Output Voltage
Adjustable Output Voltage up to 5.2V
Up to 90% Efficiency
30μA (TYP) Quiescent Current
1μA (MAX) Shutdown Current
6V Output Voltage Clamping
Improved Light Load Efficiency with Power-Save Mode (PSM)
Load Disconnected in Shutdown Mode
1.8V Logic on EN Pin for Control
Low Reverse Leakage Current when VOUT > VIN
Over-Temperature Protection
Available in a Green SOT-23-6 Package
-40℃ to +85℃ Operating Temperature Range
APPLICATIONS
Single-Cell Li Battery Powered Products
Portable Audio Players
Mobile Phones
Personal Medical Devices