________________________________________________________________________________________________________________ 27 xc62e series boosting voltage regulators general description features the xc62e series are a group of positive output voltage regulators that can supply up to 1a of output current using an external transistor. low power and high accuracy are achieved through cmos process and laser trimming technologies. the series consists of a high precision voltage reference, an error correction circuit and a short-circuit protected output driver. in stand-by mode, supply current can be dramatically cut. since the input-output voltage differential is small, loss con - trol efficiency is good. the xc62e is particularly suited for use with battery operated portable products, and products where supply current regula - tion is required. the series comes in an ultra small sot-25 package. in connection with the ce function, apart from the negative logic xc62ep series, a positive logic xc62er series ( cus- tom ) is also available. ultra low dropout voltage: 100mv @ 100ma ( performance depends on the external transistor charac- teristics ) maximum output current: 1000ma output voltage range: 2.0v to 6.0v in 0. 1v increments highly accurate: setup voltage 2% low power consumption: typ 50 a [ v out =5.0v ], typ 0.2 a [ stand-by mode ] output voltage temperature characteristics: typ 100ppm/ c line regulation: typ 0. 1%/v ultra small package: sot-25 mini-mold pin configuration pin assignment sot-25 (top view) 1 23 4 5 ce/ce ext v ss v in v out pin number pin name function 1v ss ground 2v in supply voltage input 3v out regulated voltage output 4 ext base current control 5 ce/ce chip enable block diagram voltage reference current limit v dd ext ce v out v ss + - ordering information xc62e abcdef designator description designator description a ce pin logic : p = negative r = positive b output voltage : 30 = 3.0v 50 = 5.0v e package type m = sot-25 c temperature coefficients : 0 = 100ppm (typical) d output voltage accuracy : 1 = 1.0% ( semi-custom ) 2 = 2.0% f device orientation : r = embossed tape ( right ) l = embossed tape ( left )
|
