TC7662A

EVALUATION KIT AVAILABLE TC7662A CHARGE PUMP DC-TO-DC CONVERTER FEATURES s s s s s s s Wide Operating Range ............................. 3V to 18V Increased Output Current .............................. 40mA Pin Compatible with ICL7662/SI7661/TC7660/ LTC1044 No External Diodes Required Low Output Impedance @ IL = 20mA ....... 40Ω Typ. No Low-Voltage Terminal Required CMOS Construction GENERAL DESCRIPTION The TC7662A is a pin-compatible upgrade to the Industry standard TC7660 charge pump voltage converter. It converts a +3V to +18V input to a corresponding –3V to –18V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI. In addition to a wider power supply input range (3V to 18V versus 1.5V to 10V for the TC7660), the TC7662A can source output currents as high as 40mA. The on-board oscillator operates at a nominal frequency of 12kHz. Operation below 10kHz (for lower supply current applications) is also possible by connecting an external capacitor from OSC to ground. The TC7662A directly is recommended for designs requiring greater output current and/or lower input/output voltage drop. It is available in 8-pin PDIP, and CerDIP packages in commercial and extended temperature ranges. PIN CONFIGURATION PDIP/CerDIP NC 1 C+ 2 8 VDD 7 OSC ORDERING INFORMATION Part No. TC7662ACPA TC7662AEPA TC7662AIJA TC7662AMJA Package 8-Pin Plastic DIP 8-Pin Plastic DIP 8-Pin CerDIP 8-Pin CerDIP Temperature Range 0°C to +70°C – 40°C to +85°C –...