ADP2119ACPZ-R7

The ADP2119ACPZ-R7 from Analog Devices is a synchronous, step-down DC-to-DC regulator designed for efficient power conversion. It features a continuous output current of 2A and operates within an input voltage range of 2.3V to 5.5V. The output voltage is adjustable from 0.6V up to the input voltage, providing design flexibility.

This regulator utilizes a current mode, constant frequency Pulse-Width Modulation (PWM) control scheme for stable performance and good transient response. It can also operate in Pulse Frequency Modulation (PFM) mode under light load conditions to conserve power. Key electrical specifications include a switching frequency of 1.2MHz and an output accuracy of ±1.5%. Integrated MOSFETs with low on-resistance (70 mΩ and 145 mΩ) contribute to its high efficiency.

The device is housed in a compact 10-lead, 3 mm × 3 mm LFCSP_WD package, suitable for surface mounting. It includes essential protection features such as undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD). The low quiescent current, drawing less than 2 µA when disabled, makes it suitable for power-sensitive applications.

Applications for the ADP2119ACPZ-R7 include point-of-load conversion, communications and networking equipment, industrial and instrumentation systems, and consumer electronics.