General Description

The ICL7660CPA is a monolithic, CMOS switched-capacitor voltage converter designed to invert, double, divide, or multiply a positive input voltage. It is pin compatible with the industry-standard ICL7660 and LTC1044, operating from 1.5V to 10V with no external diode required over the full temperature range. The ICL7660CPA delivers 10mA with a 0.5V output drop and combines low quiescent current and high efficiency.

Key Features

• Miniature μMAX Package
• Operating Supply Voltage Range: 1.5V to 10.0V
• Typical Power-Conversion Efficiency: 98%
• Capabilities to Invert, Double, Divide, or Multiply Input Voltages
• No-Load Supply Current: 200μA (max) at 5V
• No External Diode Required for Higher-Voltage Operation

Applications

• Generating a -5V supply from a +5V logic supply to power analog circuitry
• Personal Communications Equipment
• Portable Telephones
• Op-Amp Power Supplies
• EIA/TIA-232E and EIA/TIA-562 Power Supplies
• Data-Acquisition Systems
• Handheld Instruments
• Panel Meters

Electrical Characteristics

• Supply Current:
• Supply Voltage Range:
• Output Resistance:
• Oscillator Frequency:
• Power Efficiency: 95% to 98%

Pin Configuration

• 1: BOOST (MAX1044) / N.C. (ICL7660)
• 2: CAP+ Connection to positive terminal of Charge-Pump Capacitor
• 3: GND Ground
• 4: CAP Connection to negative terminal of Charge-Pump Capacitors
• 5: VOUT Negative Voltage Output
• 6: LV Low-Voltage Operation
• 7: OSC Oscillator Control Input
• 8: V+ Power-Supply Positive Voltage Input

Mechanical Specifications

• Package Type: Plastic DIP
• Package Code: P8+1
• Outline Number: 21-0043
• Land Pattern Number: —

Operating Temperature Range

• ICL7660CPA: 0°C to +70°C