DC/DC converter, adj., +1.5 to +10 Vin, -1.5 to -10 Vout, 20 mA,

Charge Pump DC-to-DC Voltage Converter

Descriptions: The TC7660 device is a pin-compatible replacement for the industry standard 7660 charge pump voltage converter. It converts a +1.5V to +10V input to a corresponding -1.5V to -10V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and electromagnetic interference (EMI). The on-board oscillator operates at a nominal frequency of 10 kHz. Operation below 10 kHz (for lower supply current applications) is possible by connecting an external capacitor from OSC to ground. The TC7660 is available in 8-Pin PDIP, 8-Pin Small Outline (SOIC) and 8-Pin CERDIP packages in commercial and extended temperature ranges.

Features: - Wide Input Voltage Range: +1.5V to +10V - Efficient Voltage Conversion (99.9%, typ) - Excellent Power Efficiency (98%, typ) - Low Power Consumption: 80 µA (typ) @ VIN = 5V - Low Cost and Easy to Use - Only Two External Capacitors Required - Available in 8-Pin Small Outline (SOIC), 8-Pin PDIP and 8-Pin CERDIP Packages - Improved ESD Protection (3 kV HBM) - No External Diode Required for High-Voltage Operation

Applications: - RS-232 Negative Power Supply - Simple Conversion of +5V to ±5V Supplies - Voltage Multiplication VOUT = ± n V+ - Negative Supplies for Data Acquisition Systems and Instrumentation