Mespek Oy, PL103, 00701 Helsinki Puh. (09)3507360 Fax (09)3453384 E-mail: mespek@mespek.com http://www.mespek.com UM3500 SERIES 40 Watts DC-DC Converters ♦ Synchronous-Rectifier Topology ♦ Remote On/Off Control ♦ Continuous Short Circuit Protection www.DataSheet4U.net ♦

UM3300 SERIES 10 Watt DC-DC Converters ♦ 2:1 Input Range ♦ 25 Watts/Cubic Inch ♦ Efficiency to 82% ♦ Short circuit protection SPECIFICATIONS All specifications are typical at nominal line, full load and 25°C unless otherwise noted. GENERAL SPECIFIC

--z= --A m--wPRELIMINARY UM3758 Series I’ri-Siate Programmahle Encoder/Decoder Features m Single-Chip CMOS construction m Single-Chip encoder/decoder selected by jump wire m Wide operating voltage range : VDO = 3 to 12 Volts . Built-in RC oscillator (tan use 5 % resistor) n E

UM3004 N-Ch 30V Fast Switching MOSFETs General Description The UM3004 is the highest performance trench N-ch MOSFETs with extreme high cell density , which provide excellent RDSON and gate charge for most of the synchronous buck converter applications . The UM3004 meet the RoHS