The TC7662B is a pin-compatible upgrade to the Industry standard TC7660 charge pump voltage converter. It converts a +1.5V to +15V input to a corresponding – 1.5 to – 15V output using only two low-cost capacitors, eliminating inductors and their associated cost, size and EMI. The on-board oscillator operates at a nominal frequency of 10kHz. Frequency is increased to 35kHz when pin 1 is connected to V + , allowing the use of smaller external capacitors. Operation below 10kHz (for lower supply current applications) is also possible by connecting an external capacitor from OSC to ground (with pin 1 open). The TC7662B is available in both 8-pin DIP and 8-pin small outline (SO) packages in commercial and extended temperature ranges.
Parameter Name Value
Typical Active Output Current (mA) 20
Output Voltage (V) Vout = -Vin or Vout = 2Vin
Typical Quiescent Current (µA) 180
Input Voltage Range (V) 1.5 to 15
Operating Temp. Range (°C) -45 to 85
Device Description Inverting or Doubling
Features
- Boost Pin (Pin 1) for Higher Switching Frequency
- High Power Efficiency is 96%
- Easy to Use – Requires Only 2 External Non-Critical Passive Components
- Improved Direct Replacement for Industry Standard ICL7660 and Other
Second Source Devices
