Regulator - TC7660S, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP

Regulator - TC7660S, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP

Regulator - TC7660S, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP image 1
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TC7660S charge pump voltage converter in an 8 pin DIP package. 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 10 kHz (for lower supply current applications) is possible by connecting an external capacitor from OSC to ground (with pin 1 open).


  • 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 Power Consumption: 80 µA (typical) @ VIN = 5V
  • Low Cost and Easy to Use
  • Only Two External Capacitors Required
  • 8-Pin PDIP Package
  • Improved ESD Protection (10 kV HBM)
  • No External Diode Required for High-Voltage Operation


  • 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
Item ID:
Microchip Technology Part Number:
Product Measurements by Type
Height4.06 mm:
Input Voltage, Max12 V:
Input Voltage, Min1.5 V:
Length10.16 mm
Max. Current into LV20 µA for V+ > 3.5V
Max. Operating Temperature70 °C
Max. Output Short Duration (VSUPPLY 5.5V)Continuous
Max. Package Power Dissipation730 mW
Max. Supply Voltage+13V
Min. Operating Temperature0 °C:
Number of Outputs1 Output:
Output Current20 mA:
Output Voltage-1.5 V to -12 V, 3 V to 24 V:
Quiescent Current20 uA:
Switching Frequency10 kHz:
Packaging Information
Packaging Dimensions0.365 in. × 0.35 in. × 0.28 in.
Weight (Packaging)0.001 lbs.
PDF: DatasheetAll Models

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PDF: Datasheet Datasheet684.27 KB