Step-down, , 4 ... 11.5 V, 3 V, 225 mA DIP-8

The MAX653CPA+ is a low IQ 3V DC/DC step-down converter in a 8-pin DIP package. The step-down switching regulator offers high efficiency over a wide range of load currents and delivers up to 225mA. A current limiting pulse frequency modulated (PFM) control scheme gives the devices the advantages of a pulse duration modulated (PWM) converter (high efficiency at high loads), while only 10µA supply current is required (compared to 2mA to 10mA for PWM converters). The result is high efficiency over a wide load range. The input range is 4V to 11.5V and offers a lower preset output voltage of 3V or the output can be adjusted by the user to any voltage between 1.3V and the input voltage. It features an internal 1A power MOSFET switch, making it ideal for low to medium power applications with a small number of components.