TCM828VT713 Datasheet PDF - Microchip

The TCM828/829 are CMOS "charge-pump" voltage converters in ultra-small 5Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency

MICROCHIP TCM828ECT713 DC-DC Adjustable Charge Pump Voltage Converter, 1.5V to 5.5V in, -5.5V to -1.5V/25mA out, SOT-23A-5

Charge Pump INV/STPUP -1.5V to -5.5V/3V to 11V 25mA