ADP5301ACBZ-3-R7

Overview

The ADP5301ACBZ-3-R7 is a single-output synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 2.15 V to 6.5 V and provides a programmable output voltage from 800 mV to 5 V with a maximum output current of 500 mA. The device features a fixed 2 MHz switching frequency and ultra-low quiescent current of 180 nA in shutdown mode, rising to 425 uA during operation. Packaged in a compact 9-WLCSP (1.87x1.65 mm) format, it supports surface mount installation and functions across a temperature range of -40°C to +125°C TJ.

Feature Summary

• Integrates a synchronous buck converter topology for high efficiency power conversion
• Features ultralow power consumption with 180 nA shutdown current for battery longevity
• Includes overvoltage protection circuitry to safeguard downstream loads
• Utilizes a small footprint WLCSP package suitable for space-constrained designs

Applications

• Wearable electronic devices requiring extended battery life
• IoT sensor nodes and low-power microcontroller systems
• Portable consumer electronics with strict size limitations
• Battery-powered medical instrumentation

Procurement Notes

Verify the specific suffix '-3' corresponds to the required overvoltage protection threshold and pin configuration before ordering. Confirm that the 9-WLCSP package dimensions align with your PCB layout constraints. Ensure compatibility with the 2 MHz switching frequency regarding external component selection. Check for any recent engineering change notices affecting the manufacturing process or material composition.

Selection Notes

Select this component when a single regulated output is sufficient for the system architecture. Consider the 500 mA current limit against peak load requirements to prevent saturation. Evaluate the thermal performance within the WLCSP package under maximum load conditions. Compare the 2 MHz frequency against noise sensitivity requirements in the application environment.

Part Context

This part belongs to the ADP5301 series of ultralow power DC-DC converters designed for portable applications. It shares the core synchronous buck architecture with variants like ADP5301ACBZ-1-R7, differing primarily in internal programming settings and protection thresholds. The series targets markets demanding minimal standby current and compact form factors.

Replacement Considerations

ADP5301ACBZ-1-R7 offers similar electrical characteristics but may differ in specific protection thresholds or factory programming settings. Verify functional equivalence regarding overvoltage limits and startup sequences before substitution.