PCF8591 Module Analog to Digital Converter Module is a breakout board/Prototype Board for PCF8591 IC. The PCF8591 is a single-chip, single‑supply low‑power 8‑bit CMOS data acquisition device with four analog inputs, one analog output, and a serial I²C‑bus interface.
Input voltage: 0.9V~5V; Output voltage: DC 5V; Output current: 200mA; With input power indicator light; With micro PFM control DC / DC voltage step-up controller chip; With USB female interface, can be powered to USB devices