The TC1221/1222 are CMOS "charge-pump" voltage converters in ultra-small 6-Pin SOT-23A packages. They invert and/or double an input ... The TC1221/1222 are CMOS "charge-pump" voltage converters in ultra-small 6-Pin SOT-23A packages. They invert and/or double an input voltage which can range from 1.8V to 5.5V. Conversion efficiency is typically 96%. Switching frequency is From old datasheet system (TC1222) High Frequency Switched Capacitor Voltage Converters with Shutdown in SOT Packages (TC1221) High Frequency Switched Capacitor Voltage Converters with Shutdown in SOT Packages
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