NC2600ZA PWM/PFM Step-Down Switching Regulator

Nisshinbo Micro Devices Inc. NC2600 series synchronous rectification and a maximum output current 2 A step-down DC/DC switching regulator offers a PWM/PFM auto switching mode function. As products have been miniaturized, the limitation of the board area where electronic components can be mounted has become increasingly smaller. In many cases, the area available for power management ICs has also been limited. Furthermore, in battery-powered applications, power management ICs are increasingly required to be highly efficient to prolong the life of batteries.

The NC2600 series is a synchronous step-down DC/DC switching regulator with 4 MHz switching frequency. Two small packages are available: the WLCSP-8-P11, a small 1.62 mm x 0.98 mm x 0.4 mm package, and the DFN2020-8-GT (under development), a 2.0 mm x 2.0 mm x 0.6 mm surface-mount type for easy mounting. Since this product is designed to operate even with peripheral components with small external dimensions, power management components, including peripheral components, can be placed in a small footprint area.

It has an input voltage range of 2.3 V to 5.5 V and a maximum rating of 6.5 V. The output voltage is available in two types: a fixed voltage type, where the output voltage is set internally in the IC, and a voltage adjustable type, where external resistors set the output voltage.

Moreover, it supports a maximum output current of 2 A. In addition, it is equipped with a function that automatically switches between pulse frequency modulation (PFM) mode and pulse width modulation (PWM) mode depending on the output current to enable efficient voltage conversion at light load. This function enables the product to achieve both responses to heavy load and high efficiency at light load.