SP6645EU

SP6645EU is designed as dual alkaline cell, high efficiency boost DC-DC regulator. It is high-efficiency, low-power step-up DC-DC converters ideal for single or dual alkaline cell applications such as pagers, remote controls, pointing devices, medical monitors, and other low-power portable end products.

It has thirteen features. (1) 90mA output current at 1.3V input. (2) 190mA output current at 2.6V input. (3) +2V to +5.5V output range. (4) 0.88V guaranteed start-up. (5) 92% high efficiency. (6) 1.6A quiescent supply current at VBATT. (7) Reverse battery protection. (8) Internal synchronous rectifier. (9) 5nA logic controlled shutdown current from VBATT. (10) Low-battery detection active LOW output. (11) Small 8 pin MSOP package. (12) Flexibility to optimize inductor type with programmable peak current control. (13) No external FETs. That are all the main fetaures.

Some absolute maximum ratings have been concluded into several poins as follow. (1) Its Vbatt to GND would be from -0.3V to 6.0V. (2) Its Vout to GND would be from -0.3V to 6.0V. (3) Its LX, SHDN, FB, BATTLO to GND would be from -0.3V to 6.0V. (4) Its reverse battery current would be 220mA. (5) Its Vbatt forward current would be 0.5A. (6) ts Vout LX current would be 1A. (7) Its storage temperature range would be from -65°C to +165°C. (8) Its lead temperature (soldering 10s) would be +300°C. (9) Its operating temperature range would be from -40°C to +85°C.

Also some electrical characteristics about it. (1) Its maximum operating input voltage would be max 3.3V. (2) Its start up input voltage would be typ 0.82V and max 1.1V. (3) Its start up input voltage temperature cosfficient would be -1mV/°C. (4) Its SHDN input voltage would be max 15% Vbatt for low level and min 80% Vbatt for high level. (5) Its SHDN input current would be typ 1nA and max 100nA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!