Advances in IoT technology and market expansion are leading to an increase in devices equipped with data communication functions.
In particular, many small IoT devices, security equipment, and industrial sensors run on primary batteries, and so there is a demand for low power consumption to extend battery life, with current consumption during sleep mode being a particular issue.In addition, there is also a demand for noise reduction to prevent transmission errors during data communication.

This product achieves ultra-low current consumption Iq = 70nA (1/4 of Nisshinbo Micro Devices' conventional products), and extends battery life through highly efficient power conversion in sleep mode, contributing to long-term operation of devices. In addition, it is equipped with a "low ripple mode" to reduce noise, which can be easily switched with the MODE terminal. The low ripple and excellent load transient response characteristics suppress transmission errors during data communication. In addition, it adopts a PWM/PFM automatic switching control method, which automatically switches to PFM when the load current is small and to PWM when the load is large, achieving efficient power supply.
In addition, it is possible to switch to shutdown operation with Iq = 50nA using the EN pin. Regarding shutdown operation, there are three versions to choose from:

　・ V _IN–V _OUT complete cutoff: NC4650ZAxxx A E2S, NC4650ZAxxx C E2S
　・ V _OUT discharge (auto-discharge function): NC4650ZAxxx B E2S
　・ V _IN–V _OUT pass-through (seamless pass-through function): NC4650ZAxxx D E2S

This product uses the ultra-compact WLCSP-6-ZA1 (1.3 x 0.92 x 0.4 mm) package, which is suitable for high-density mounting.

NC4650 series WLCSP-6-ZA1 (1.3 x 0.92 x 0.4 mm)