SP6651A

PVIN,VIN .......................................................................................... 6V
All other pins ............................................................ ....3V to VIN+0.3V
PVIN, PGND, LX current .................................................................... 2A
Storage Temperature ............................................. -65 °C to 150 °C
Operating Temperature ............................................ -40°C to +85°C
Lead Temperature (Soldering, 10 sec) .................................... 300 °C
Thermal Resistance øJA:
10-Pin MSOP..........................................................................128°C/W
10-Pin DFN ..............................................................................68°C/W

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

The SP6651A is a 800mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6651A's proprietary control loop, 20µA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of output currents. As the input battery supply decreases towards the output voltage the SP6651A seamlessly transitions into 100% duty ratio operation further extending useful battery life. The SP6651A is protected against overload and short circuit conditions with a precise inductor peak current limit. Other features include programmable under voltage lockout and low battery detection, externally programmed output voltage down to 1.0V, logic level shutdown
control, and 140°C over temperature shutdown.