TC1227

Input Voltage (V_IN to GND) .......................... +6.0V, 0.3V
Output Voltage (V_IN, 2V_IN to GND).........12.0V, + 0.3V
Current at V_IN, 2V_IN Pins ......................................10mA
Short-Circuit Duration V_IN, 2V_IN to GND ......... Indefinite
Operating Temperature Range ................... 40to +85
Power Dissipation (T_A 70) MSOP-8 ...................320mW
Storage Temperature (Unbiased) ............ 65to +150
Lead Temperature (Soldering, 10sec) ..................... +260

*This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum ratingconditions for extended periods may affect device reliability.

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 12kHz for the TC1225, 35kHz for the TC1226, and 125kHz for the TC1227.

These devices TC1227 provide both a negative voltage inversion (available at the V_IN output) and a negative doubling
voltage inversion (available at the 2 V_IN output), with a low output impedance capable of providing output currents up to 5mA for the V_IN output and 1mA for the 2V_IN output. The input voltage can range from +1.8V to +5.5V.