v fb cont sense sd1 v fb v ss vd2 out vd1 out vd1 step-up vd2 v out seiko instruments usa inc. electronic components division 2990 west lomita blvd., torrance, ca 90505 phone: (310) 517-7771 fax: (310) 517-7792 seiko instruments is #1 in low current consumption. order your s-8310 today : all american 800-573-asap reptron 800-800-5441 schuster 800-877-6875 sterling 800-745-5500 immediate delivery from stock! n low current consumption: operation = 23 microamps (no load) shutdown = 2 microamps n wide input voltage range: 0.9v to 10.0v n output voltage regulation 2.4% n output current up to 50ma n two voltage detectors n pwm circuit @ 50khz n shutdown function to extend battery life n internal current limiting circuit n toper = -40?c to +85?c n 8 pin sop pkg. = 5.2 x 4.4 x 1.5mm n only $1.18 @ 1k! model v out vd1 vd2 S-8310AFE-T2 3.0v 2.2v 0.9v s-8310cfe-t2 3.0v 2.2v 1.1v s-8310dfe-t2 2.7v 2.2v 1.0v the s-8310 pwm switching regulator consists of a reference voltage source, a rc oscillator, and two independent voltage detectors. vd1 monitors the output voltage, and vd2 can detect any voltage by connecting the sense terminal. the power of the voltage detectors is supplied by v out . when v out is below vd1 and vd2, the voltage detectors are not in operation. also, the two voltage detectors operate independently of the on/off shutdown function. n pager and cell phone n portable data terminal n power for portable equipment n ic voltage supply from 1.5v battery n h/pc = handheld pc for longer battery life in your design, visit us at www.seiko-usa-ecd.com on/off shutdown v in s-8310 v out (see table) sense vd1 out vd2 out low current pwm step-up switching regulator features two independent voltage detectors! (only $1.18 @ 1k...immediate delivery from stock!)
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