Datasheet Summary
200mA PFM Step-up DC-DC Converter With High Efficiency and Low Noise
General Description
The EC9202 is a pact PFM step-up DC/DC converter that operates from an input voltage as low as 0.8 Volt. The low start-up input voltage makes EC9202 specially designed for portable devices from one or two cell battery, delivering up to 200mA load current at VIN=1.8V VOUT=3.3V. Typical efficiency for EC9202 is 85% when VIN>=2.0V VOUT=3.3V ILOAD=1~60mA. Potential applications include low powered consumer products and battery powered portable products.
The EC9202 Features a band gap reference, trimming technology, current -limited, PFM control scheme which bines the advantages of PWM (...