ICL7660 Switched-Capacitor Voltage Inverter
Monolithic CMOS switched-capacitor voltage converter that converts a positive input voltage (+1.5V to +10.0V) to an equivalent negative output voltage (-1.5V to -10.0V) with 99.9% conversion efficiency, requiring only two external capacitors.
Aliase:ICL7660A, MAX1044, TC7660, Charge Pump Inverter, Negative Voltage Generator
DIP-8 Top View
8 Pins
Pinout Table8
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | NC | NC | No Connection (Boost Pin on MAX1044/ICL7660S) |
| 2 | CAP+ | Analog | External Charge-Pump Capacitor Positive Terminal |
| 3 | GND | Ground | Power Supply Ground (0V) |
| 4 | CAP- | Analog | External Charge-Pump Capacitor Negative Terminal |
| 5 | VOUT | Power | Inverted Output Voltage (-VIN) |
| 6 | LV | Digital | Low Voltage Operation Pin (Connect to GND for VIN < 3.5V, Open for VIN > 3.5V) |
| 7 | OSC | Analog | Internal Oscillator Control / External Clock Connection (~10 kHz) |
| 8 | V+ | Power | Positive Power Supply Input (+1.5V to +10.0V) |