General Description:

The TC1121 is a charge pump converter with 100 mA output current capability. It converts a 2.4V to 5.5V input to a corresponding negative output voltage. As with all charge pump converters, the TC1121 uses no inductors saving cost, size and EMI.

Features:

• Optional High-Frequency Operation Allows Use of Small Capacitors

• Low Operating Current (FC = GND): -50 μA

• High Output Current (100 mA)

• Converts a 2.4V to 5.5V Input Voltage to a Corresponding Negative Output Voltage (Inverter mode)

• Uses Only 2 Capacitors; No Inductors Required

• Selectable Oscillator Frequency:

- 10 kHz to 200 kHz

• Power-Saving Shutdown Input

• Available in 8-Pin MSOP, 8-Pin PDIP and 8-Pin Small Outline (SOIC) Packages