SC1660

SWITCHED CAPACITOR VOLTAGE CONVERTER January 30, 1998 SC1660 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1660 is a monolithic CMOS switched capacitor voltage converter. Designed to be an improved direct replacement for the popular 7660, the SC1660 provides performance superior to previous designs by combining low quiescent current with high efficiency, and by eliminating diode drop voltage losses. The only required external components are two low cost electrolytic capacitors. FEATURES Improved direct replacement for 7660 Easy to use 1.5V to 9V operation No external diode required Simple conversion of +5V to ±5V Low quiescent current High power efficiency Boost pin for higher switching frequency TEST CIRCUIT APPLICATIONS RS-232 power supplies Handheld instruments Data acquisition systems Supply splitter, VOUT = ±VS/2 Operational amplifier supplies ORDERING INFORMATION DEVICE (1) PACKAGE 8-Pin DIP SO-8 SC1660CN SC1660CS Note: (1) Add suffix ‘TR’ for tape and reel. PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Parameter Supply Voltage Operating Temperature Range Storage Temperature Range Symbol V+ TA TSTG Maximum 9.0 -40 to 85 -65 to 125 Units V °C °C © 1997 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 SWITCHED CAPACITOR VOLTAGE CONVERTER January 30, 1998 SC1660 ELECTRICAL CHARACTERISTICS Unless otherwise specified, TA = 25°C, V+ = 5V, OSC = free running Parameter Input Voltage Supply Current Out...