FEATURES
s s s s s s s 10-Pin MSOP Package Operates from 1.8V to 5.5V Up to 5mA Output Current at –VIN Pin Up to 1mA Output Current at –2VIN Pin Power-Saving Shutdown Mode –VIN and –2VIN Outputs Available Low Active Supply Current .......................................... 120µA (MAX) for TC1235 .......................................... 360µA (MAX) for TC1236 .......................................... 1.5mA (MAX) for TC1237 Fully Compatible with 1.8V Logic Systems GENERAL DESCRIPTION
The TC1235/1236/1237 are CMOS dual inverting charge pump voltage converters with a low power shutdown mode in MSOP 10-Pin packages. Only four external capacitors are required for full circuit implementation. Switching frequencies are 12kHz for the TC1235, 35kHz for the TC1236 and 125kHz for the TC1237. The input voltage can range from +1.8V to +5.5V. s TYPICAL APPLICATIONS
s s s s s LCD Panel Bias Cellular Phones PA Bias Pagers PDAs, Portable Dataloggers Battery Powered Devices ORDERING INFORMATION Part No.