Regulator - TC1044, Charge Pump DC-TO-DC Voltage Converter, 8-Pin DIP
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).
Features
- 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 Range | 0°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 | ||
| Package | DIP-8 | ||
| 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 Dimensions | 0.365 in. × 0.35 in. × 0.28 in. | ||
| Weight (Packaging) | 0.0011 lbs. | ||
 Datasheet | All Models |
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