TC7662B

EVALUATION KIT AVAILABLE TC7662B CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER FEATURES s s s s s Wide Operating Voltage Range: 1.5V to 15V Boost Pin (Pin 1) for Higher Switching Frequency High Power Efficiency is 96% Easy to Use – Requires Only 2 External Non-Critical Passive Components Improved Direct Replacement for Industry Standard ICL7660 and Other Second Source Devices GENERAL DESCRIPTION The TC7662B is a pin-compatible upgrade to the Industry standard TC7660 charge pump voltage converter. It converts a +1.5V to +15V input to a corresponding – 1.5 to – 15V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI. The on-board oscillator operates at a nominal frequency of 10kHz. Frequency is increased to 35kHz when pin 1 is connected to V+, allowing the use of smaller external capacitors. Operation below 10kHz (for lower supply current applications) is also possible by connecting an external capacitor from OSC to ground (with pin 1 open). The TC7662B is available in both 8-pin DIP and 8-pin small outline (SO) packages in commercial and extended temperature ranges. APPLICATIONS s s s s s Simple Conversion of +5V to ±5V Supplies Voltage Multiplication VOUT = ±nVIN Negative Supplies for Data Acquisition Systems and Instrumentation RS232 Power Supplies Supply Splitter, VOUT = ±VS/2 ORDERING INFORMATION Part No. Package 8-Pin SOIC 8-Pin Plastic DIP 8-Pin SOIC 8-Pin Plastic DIP Temperature Range 0°C to +70°C 0°C to +70°C – 40°C t...