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 12kHz (for lower supply current applications) is also possible by connecting an external capacitor from OSC to ground.
●Features
●• 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
●• Available in 8-Pin PDIP and 8-Pin CERDIP Packages
●Applications
●• Laptop Computers
●• Disk Drives
●• Process Instrumentation
●• μP-based Controllers
