ADP151ACBZ-1.8-R7

Product Overview

The ADP151ACBZ-1.8-R7 from Analog Devices Inc. is a positive, fixed-output linear voltage regulator IC with one 1.8 V output and a 200 mA current rating. It uses a 4-WLCSP package with a 0.76 mm by 0.76 mm body and surface-mount construction. The device accepts an input voltage up to 5.5 V, includes enable control, and provides overcurrent, overtemperature, and under-voltage lockout protection. Its quiescent current is 20 µA, maximum supply current is 350 µA, and its operating temperature range is -40°C to 125°C.

Key Features

• Positive fixed-output linear regulator with one 1.8 V output rated at 200 mA.
• Input voltage maximum of 5.5 V and 4-WLCSP surface-mount package measuring 0.76 mm by 0.76 mm.
• Enable control with overcurrent, overtemperature, and under-voltage lockout protection.
• Quiescent current of 20 µA and maximum supply current of 350 µA.
• Operating temperature range from -40°C to 125°C.

Applications

• Fixed 1.8 V rails for low-current logic, sensor, or interface sections in battery-powered portable devices.
• Compact embedded boards that require a 4-WLCSP linear regulator with enable control.
• Battery-operated modules needing overcurrent, overtemperature, and UVLO protection on a single-output 1.8 V regulator.

Design & Procurement Notes

Designers should account for the thermal dissipation of a linear regulator when the input voltage is close to the upper 5.5 V limit and the output is loaded near 200 mA. The small 4-WLCSP package requires careful PCB layout, pad geometry, and thermal relief. The enable control should be incorporated into power sequencing or fault management. Overcurrent, overtemperature, and UVLO behavior should be considered in system-level protection and recovery design. The -40°C to 125°C temperature range should be checked against the actual board temperature and load profile.