LM2623MM

The LM2623MM is one member of the LM2623 family which designed as one kind of high efficiency, general purpose, step-up DC-DC switching regulator for battery-powered and low input voltage systems.It accepts an input voltage between .8 and 14 volts and converts it into a regulated output voltage between 1.24 and 14 volts.It uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range.It normally regulates by skipping switching cycles when it reaches the regulation limit (pulse frequency modulation).

Features of the LM2623MM are:(1)very low output voltage ripple;(2)1.09 mm package height;(3)small, mini-SO-8 package (half the footprint of standard 8 pin SO package);(4)good efficiency over a very wide load range;(5)1.09 mm package height;(6)up to 2 MHz switching frequency;(7).8V to 14V operating voltage;(8)1.1V start-up voltage;(9)1.24V - 14V adjustable output voltage;(10)up to 2A load current at low output voltages;(11)0.17 internal MOSFET;(12)up to 90% regulator efficiency;(13)80 A typical operating current (into VDD pin of supply);(14)4mm x 4mm thermally enhanced LLP package option.Also it can be used in:(1)cameras, pagers and cell phones;(2)PDAs,palmtop computers, GPS devices;(3)white LED drive, TFT or scanned LCDs;(4)flash memory programming;(5)hand-held instruments;(6)1, 2, 3 or 4 cell alkaline systems;(10)1, 2 or 3 cell lithium-ion systems.

The absolute maximum ratings of the LM2623MM can be summarized as:(1)SW pin voltage:-0.5 V to 14.5V;(2)BOOT,VDD,EN and FB pins:-0.5V to 10V;(3)FREQ pin:100A;(4)TJmax:150°C;(5)storage temperature range:-65°C to +150°C;(6)lead temp. (soldering,5 sec):260°C;(7)power dissipation (Ta=25°C):500 mW;(8)ESD rating:2kV.If you want to know more information such as the electrical characteristics about the LM2623MM,please download the datasheet in www.seekdatasheet.com or www.chinaicmart.com.