TC7660S

TC7660S Super Charge Pump DC-to-DC Voltage Converter Features Oscillator boost from 10 kHz to 45 kHz Converts +5V Logic Supply to ±5V System Wide Input Voltage Range: +1.5V to +12V Efficient Voltage Conversion (99.9%, typical) Excellent Power Efficiency (98%, typical) Low PowerConsumption:80 µA(typical)@VIN=5V Low Cost and Easy to Use - Only Two External Capacitors Required Available in 8-Pin Small Outline (SOIC) and 8-Pin PDIP Packages Improved ESD Protection (10 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 Package Types PDIP/SOIC BOOST 1 CAP+ 2 GND 3 CAP- 4 TC7660S 8 V+ 7 OSC 6 LOW VOLTAGE (LV) 5 VOUT General Description The TC7660S device is a pin-compatible replacement for the industry standard 7660 charge pump voltage converter. It converts a +1.5V to +12V input to a corresponding -1.5V to -12V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and electromagnetic interference (EMI). Added features include an extended supply range to 12V, and a frequency boost pin for higher operating frequency, allowing the use of smaller external capacitors. The on-board oscillator operates at a nominal frequency of 10 kHz. Frequency is increased to 45 kHz when pin 1 is connected to V+. Operation below...