TC1225
FEATURES s s s s s s Small 8-Pin MSOP Package Operates from 1.8V to 5.5V Up to 5m A Output Current at
- VIN Pin Up to 1m A Output Current at
- 2VIN Pin
- VIN and
- 2VIN Outputs Available Low Supply Current 120µA (MAX) for TC1225 360µA (MAX) for TC1226 1.5m A (MAX) for TC1227
GENERAL DESCRIPTION
The TC1225/1226/1227 are CMOS dual inverting charge pump voltage converters in 8-Pin MSOP packages. An onboard oscillator provides the clock, and only four external capacitors are required for full circuit implementation. Switching frequencies are 12k Hz for the TC1225, 35k Hz for the TC1226, and 125k Hz for the TC1227. These devices provide both a negative voltage inversion (available at the
- VIN output) and a negative doubling voltage inversion (available at the
- 2 VIN output), with a low output impedance capable of providing output currents up to 5m A for the
- VIN output and...
