The LMC7660 is a CMOS voltage converter capable of converting a positive voltage in the range of +1.5V to +10V to the corresponding negative voltage of −1.5V to −10V. The LMC7660 is a pin-for-pin replacement for the industry-standard 7660. The converter features: operation over full temperature and voltage range without need for an external diode, low quiescent current, and high power efficiency. The LMC7660 uses its built-in oscillator to switch 4 power MOS switches and charge two inexpensive electrolytic capacitors.
- Operation Over Full Temperature and Voltage Range without an External Diode
- Low Supply Current, 200 μA Max
- Pin-for-pin Replacement for the 7660
- Wide Operating Range 1.5V to 10V
- 97% Voltage Conversion Efficiency
- 95% Power Conversion Efficiency
- Easy to Use, Only 2 External Components
- Extended Temperature Range
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| Vin (min) (V) | 1.5 |
| Vin (max) (V) | 10 |
| Vout (min) (V) | -1.5 |
| Vout (max) (V) | -10 |
| Iout (max) (A) | 0.05 |
| Regulated outputs (#) | 1 |
| Switching frequency (min) (kHz) | 10 |
| Iq (typ) (mA) | 0.12 |
| Operating temperature range (°C) | -40 to 85 |
| Rating | Catalog |
| Type | Charge pump |