ME2101A30

ME2101 Series Ver 02 ME2101 Series Step-up DC-DC Converter ME2101 Series is a PWM Step-up DC/DC converter IC with low supply current by CMOS process. High frequency noise that occurs during switching is reduced by using advanced circuit designed, output voltage is programmable in 0.1V steps between 2.0~5.0V and maximum frequency is 100KHz(Typ.). A low ripple, high efficiency step-up DC/DC converter can be constructed of ME2101AxxX with only three external components. Also available is a CE(chip enable) function that reduce power dissipation During shut-down mode., and an independent Vdd pin function (separated power supply and voltage detect pins) for fly-back circuits.An inner soft-start circuit limits current surges from input power supply at start up and the reliability of the chip is improved. ME2101XxxX is suitable for use with battery-powered instruments with low noise and low supply current. Features Small number of external components: only an inductor, a diode and a capacitor； Low ripple and low noise； Operating voltage range：0.9V~6.5V； Output voltage range：2.0V~5.0V(step 0.1V)； Output voltage accuracy：±2.5%； Output Current：if Vin=3.0V and Vout=3.3V，then Iout=350mA； Low start voltage：≤0.9V(at Iout=1mA)； Maximum oscillator frequency： 100KHz(Typ.)； High Efficiency：87%(Type)； Slow-Start Time ：15mS(Type)； PACKAGE：SOT-23，SOT-89. Applications Power source for battery-powered equipment； Power source for wireless mouse, wireless keyboard, toys, ca...