SG Micro Corp

SGM6605 High Efficiency, Synchronous DC/DC Boost Converter

SGMICRO has recently introduced a high efficiency synchronized boost converter SGM6605 targeted the 5V applications. It can be widely used in cell phone, GPS, digital camera, portable audio players, and personal medical device applications. The SGM6605 is a constant frequency, current mode, synchronous step-up switching regulator. It can provide 5V output at 400mA from a 3.3V railor a Li-ion battery. Its high switching frequency minimizes the sizes of inductor and capacitor. The integrated power MOSFETs and internal compensation make the SGM6605 simple to use and fit the total solution into a compact space. For light load current, the SGM6605 enters into the power-save mode to maintain high efficiency. Anti-ringing control circuitry reduces EMI concerns by damping the inductor in discontinuous mode. The SGM6605 provides true output disconnect and this allows VOUT to go to zero volts 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 SGM6605 is available in the Green SOT-23-6 package. It operated over an ambient temperature range of -40 to +85.

Ordering Information:

For samples, please contact SGMICRO’s local offices or distributors, or log into and leave a message.

SGM6605 is in mass production and the typical lead time is 6-8 weeks.



Switching Current


Switching Frequency



IQ (μA)




2.7 ~ 5.5







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