SD1 CONT VFB VOUT VD1 OUT VD1 STEP-UP VD2 OUT VD2 SENSE VSS Low Current PWM Step-Up Switching Regulator Features Two Independent Voltage Detectors! (Only $1.18 @ 1K...Immediate Delivery from Stock!) VFB VIN VOUT (see table) S-8310 Sense VD1OUT VD2OUT On/Off Shutdown Low current consumption: Operation = 23 microamps (no load) Shutdown = 2 microamps Wide input voltage range: 0.9V to 10.0V Output voltage regulation 2.4% Output current up to 50mA Two voltage detectors PWM circuit @ 50kHz Shutdown function to extend battery life Internal current limiting circuit Toper = -40C to +85C 8 pin SOP pkg. = 5.2 x 4.4 x 1.5mm Only $1.18 @ 1K! Model S-8310AFE-T2 S-8310CFE-T2 S-8310DFE-T2 VOUT 3.0V 3.0V 2.7V VD1 2.2V 2.2V 2.2V VD2 0.9V 1.1V 1.0V Pager and cell phone Portable data terminal Power for portable equipment IC voltage supply from 1.5V battery H/PC = Handheld PC The S-8310 PWM switching regulator consists of a reference voltage source, For longer battery life in your design, a RC oscillator, and two independent visit us at www.seiko-usa-ecd.com voltage detectors. VD1 monitors the output voltage, and VD2 can detect Immediate delivery from stock! any voltage by connecting the Sense Order your S-8310 today: terminal. The power of the voltage ALL AMERICAN 800-573-ASAP detectors is supplied by VOUT. When REPTRON 800-800-5441 VOUT is below VD1 and VD2, the SCHUSTER 800-877-6875 voltage detectors are not in operation. STERLING 800-745-5500 Also, the two voltage detectors operate independently of the on/off shutdown function. Seiko Instruments Is #1 In Low Current Consumption. Seiko Instruments USA Inc. Electronic Components Division 2990 West Lomita Blvd., Torrance, CA 90505 Phone: (310) 517-7771 FAX: (310) 517-7792