Regulator - TC1044, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP

Regulator - TC1044, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP

Regulator - TC1044, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP image 1
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TC1044 charge pump voltage converter in an 8 pin DIP package. The TC1044S is a pin-compatible upgrade to the Industry standard TC7660 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 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 10kHz. Frequency is increased to 45kHz when pin 1 is connected to V+. Operation below 10kHz (for lower supply current applications) is possible by connecting an external capacitor from OSC to ground (with pin 1 open).


  • Converts +5V Logic Supply to ±5V System
  • Wide Input Voltage Range: 1.5V to 12V
  • Efficient Voltage Conversion: 99.9%
  • Excellent Power Efficiency: 98%
  • Low Power Consumption: 80µA @ VIN = 5V
  • Low Cost and Easy to Use
  • Only Two External Capacitors Required
  • RS-232 Negative Power Supply
  • 8-Pin Plastic DIP Package
  • Improved ESD Protection: Up to 10kV
  • No External Diode Required for High Voltage Operation
  • Frequency Boost Raises FOSC to 45kHz
Max. Lead Temperature (Soldering, 10 sec)+300°C
Max. Operating Temperature Range0°C to +70°C
Max. Output Short Duration (VSUPPLY ≤ 5.5V)Continuous
Max. Power Dissipation (TA ≤ 70°C)730mW
Max. Storage Temperature Range-65°C to +150°C
Max. Supply Current (0°C < TA < +70°C)300 µA
Max. Supply Voltage+13V
Oscillator Impedance (V+ = 2V)1 MΩ
Supply Voltage Range, High (Min ≤ TA ≤ Max, RL = 10 kΩ, LV Open)3 to 12 V
Supply Voltage Range, Low Min ≤ TA ≤ Max,RL = 10 kΩ, LV to GND)1.5 to 3.5 V
Typ. Oscillator Frequency (Pin 7 open; Pin 1 open or GND)10 kHz
Typ. Output Source Resistance (IOUT = 20mA)60 Ω
Typ. Power Efficiency (RL = 5 kΩ; Boost Pin Open)98 %
Typ. Supply Current (RL = ∞)80 µA
Typ. Voltage Conversion Efficiency (RL = ∞)99 99.9 %
Packaging Information
Packaging Dimensions0.365 in. × 0.35 in. × 0.28 in.
Weight (Packaging)0.0011 lbs.
PDF: DatasheetAll Models

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PDF: Datasheet Datasheet92.79 KB
Questions? Contact us at [email protected], or give us a call at 480-820-5411

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