Inverting Dual (-VIN, -2VIN) Charge Pump Voltage Converters With Shutdown

The TC1235 TC1236 TC1237 are CMOS dual inverting Charge Pump voltage converters with a low power shutdown mode in MSOP 10-Pin packages. Only four external capaci- tors are required for full circuit implementation. Switching frequencies are 12kHz for the TC1235, 35kHz for the TC1236 and 125kHz for the TC1237. When the shutdown pin is held at a Logic low, the device goes into a very low power mode of operation, consuming less than 1A of supply current. By Microchip Technology Inc.