Microchip TC766 DC/DC Converter, -4.3V dc/ 20 mA Output, 10V dc Input, 1.5V Input, 85 °C Max Temp -40 °C Min Temp

The Microchip Charge pump DC-to-DC voltage converter designed to generate negative or doubled voltages from a positive input supply. It operates without inductors, relying on just two external capacitors, which simplifies design and minimizes electromagnetic interference. With an input range from 1.5 V to 10 V, it efficiently converts voltages for low-power analog and digital systems. The device includes an internal oscillator (typically 10 kHz), and supports operation below that frequency for reduced supply current.

• Excellent power efficiency is 98%
• Only two external capacitors required
• RS-232 negative power supply