MAXIM INTEGRATED / ANALOG DEVICES MAX640CSA Step-Down DC-DC Converter

The MAX640CSA+ is a high-efficiency, low quiescent current step-down DC-DC converter available in an 8-pin NSOIC package. It provides a regulated output current of up to 225mA with a wide input voltage range from 4V to 11.5V. The device features a pulse frequency modulation (PFM) control scheme that combines the benefits of pulse-width modulation (PWM) for high efficiency at heavy loads while maintaining low quiescent current of approximately 10µA. Internal and adjustable output voltage options are available, with preset voltage at 3.3V that can be adjusted down to 1.3V or up to the input voltage. Equipped with an internal 1A power MOSFET switch, it is ideal for compact, low to medium power applications such as converting 9V batteries to 5V, 3.3V, or 3V, replacing linear regulators, or converting 5V to 3.3V. Operating temperatures range from 0°C to 70°C, with typical efficiencies exceeding 87% depending on load and inductance. The device also includes a low battery detection comparator.

View MAX640CSADatasheet [pdf]

Buy the Buy MAXIM MAX640CSA Step-Down Converter Part Number MAX640CSA Online

Purchase the MAXIM MAX640CSA step-down DC-DC converter online today to achieve high efficiency, low quiescent current, and a flexible adjustable output voltage. Its internal 1A power MOSFET switch makes it ideal for compact applications converting 4V to 11.5V inputs into regulated 3.3V outputs up to 225mA. The device’s pulse frequency modulation control scheme delivers high efficiency over a wide load range while consuming as little as 10µA of supply current. Perfect for replacing linear regulators in space-constrained, battery-powered projects requiring reliable voltage regulation and low power consumption.

Order your MAXIM MAX640CSA high-efficiency step-down DC-DC converter today and ensure reliable power conversion for your portable and embedded systems.