The ICL7660S and ICL7660A Super Voltage Converters are monolithic CMOS voltage conversion ICs that guarantee significant performance advantages over other similar devices. They are direct replacements for the industry standard ICL7660 offering an extended operating supply voltage range up to 12V, with lower supply current. A Frequency Boost pin has been incorporated to enable the user to achieve lower output impedance despite using smaller capacitors. All improvements are highlighted in the “Electrical Specifications” section on page 3 of the datasheet. Critical parameters are guaranteed over the entire commercial and industrial temperature ranges. The ICL7660S and ICL7660A perform supply voltage conversions from positive to negative for an input range of 1. 5V to 12V, resulting in complementary output voltages of -1. 5V to -12V. Only two non-critical external capacitors are needed, for the charge pump and charge reservoir functions. The ICL7660S and ICL7660A can be connected to function as a voltage doubler and will generate up to 22. 8V with a 12V input. They can also be used as a voltage multipliers or voltage dividers. Each chip contains a series DC power supply regulator, RC oscillator, voltage level translator, and four output power MOS switches. The oscillator, when unloaded, oscillates at a nominal frequency of 10kHz for an input supply voltage of 5. 0V. This frequency can be lowered by the addition of an external capacitor to the “OSC” terminal, or the oscillator may be over-driven by an external clock. The “LV” terminal may be tied to GND to bypass the internal series regulator and improve low voltage (LV) operation. At medium to high voltages (3. 5V to 12V), the LV pin is left floating to prevent device latchup. In some applications, an external Schottky diode from VOUT to CAP- is needed to guarantee latchup free operation (see Do’s and Dont’s section on page 8 of the datasheet).


  • Guaranteed Lower Max Supply Current for All Temperature Ranges
  • Wide Operating Voltage Range: 1.5V to 12V
  • 100% Tested at 3V
  • Boost Pin (Pin 1) for Higher Switching Frequency
  • Guaranteed Minimum Power Efficiency of 96%
  • Improved Minimum Open Circuit Voltage Conversion Efficiency of 99%
  • Improved SCR Latchup Protection
  • Simple Conversion of +5V Logic Supply to ±5V Supplies
  • Simple Voltage Multiplication VOUT = (-)nVIN
  • Easy to Use; Requires Only Two External Non-Critical Passive Components
  • Improved Direct Replacement for Industry Standard ICL7660 and Other Second Source Devices
  • Pb-Free Available (RoHS Compliant)


  • 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

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICN Tube 1960
Active SOICN Reel 2500
Active PDIP Tube 1000
Active SOICN Tube 980
Active SOICN Reel 2500
Active PDIP Tube 1000

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ICL7660 Datasheet Datasheet PDF 555 KB
ICL7660S, ICL7660A Datasheet Datasheet PDF 681 KB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN051: Principles and Applications of the ICL7660 CMOS Voltage Converter Application Note PDF 587 KB
AN9601: Using the HI7190 with Single +5V Supply Application Note PDF 262 KB
PCN12085 - 8l, 14l, 16l SOIC w/ Gold Bond Wire @ ATP as Alternate Assembly Site Product Change Notice PDF 152 KB
PCN12086 - Alternate Manufacturing Site for Assembly of the Listed Intersil PDIP Packaged Products -Amkor Technology, Philippines (ATP) Product Change Notice PDF 86 KB
PLC17007 - Q1 Cy 17 General Product Life Cycle Notice Product Life Cycle Notice PDF 292 KB
PA13006 - Data Sheet Specification Change for Intersil Products ICL7660A* and ICL7660S* Product Advisory PDF 66 KB