MC1121 Overview
Frequency control for internal oscillator, FC = open, FOSC = 10kHz typ; FC = VDD, FOSC = 200kHz typ, FC has no effect when OSC pin is driven externally Charge pump capacitor, positive terminal Power supply ground input CAP+ GND CAP Charge pump capacitor, negative terminal Output, negative voltage Shutdown VOUT SHDN OSC VDD Oscillator control input. An external capacitor can be added to slow the oscillator.
MC1121 Key Features
- Converts a 2.4V to 5.5V Input Voltage to a Corresponding Negative Output Voltage (Inverter Mode)
- Uses Only 2 Capacitors; No Inductors Required!
- High Output Current: 100mA
- Selectable Oscillator Frequency: 10kHz to 200kHz
- Power-Saving Shutdown Input
- Optional High-Frequency Operation Allows Use of Small Capacitors
- Low Operating Current (FC = GND): 50µA
- Tested Operating Temperature Range: -40°C to +85°C