DA9231-0EVZ2

Overview

The DA9231-0EVZ2 is a standalone nano-power buck converter manufactured by Renesas Electronics. It features an I2C-configurable interface and operates with an input voltage range of 2.5V to 5.5V. The device provides a fixed output voltage of 1.2V at a maximum output current of 300mA. Key electrical parameters include a switching frequency of 3MHz, a static current of 3.5uA, and a load regulation of 0.01%/mA. It functions within a temperature range of -40°C to +125°C and utilizes a WLCSP-12 package.

Feature Summary

• Ultra-low quiescent current operation extending battery life in portable devices
• I2C configurability for flexible system design and control
• Dynamic Voltage Control (DVC) capability for optimized power efficiency

Applications

• Wearable devices such as smartwatches and ear-worn equipment
• Smart home devices including thermostats and door locks
• Portable medical equipment requiring low power consumption

Procurement Notes

Verify the specific suffix '0EVZ2' against official Renesas documentation to confirm exact tape-and-reel packaging quantities and moisture sensitivity levels. Ensure compatibility with existing PCB footprints for the WLCSP-12 package. Confirm availability status through authorized distributors as supply constraints may apply to this component variant.

Selection Notes

Select this component when a fixed 1.2V output is required for low-current loads up to 300mA. The integrated buck topology eliminates external Schottky diodes. Consider the WLCSP-12 footprint constraints during layout. Verify that the 3MHz switching frequency aligns with EMI requirements for the target application environment.

Part Context

This part belongs to the DA923x series of nano-power PMICs designed for battery-operated applications. It integrates a high-efficiency step-down DC/DC converter with dynamic voltage control capabilities. The series targets ultra-low power systems where minimizing standby current is critical for maximizing operational time between charges.

Replacement Considerations

Consult official substitution lists for equivalent Renesas parts with matching pinouts and electrical characteristics. Verify that alternative components support the same WLCSP-12 package dimensions and I2C configuration protocols.