DA9121-A0V72

Overview

The DA9121-A0V72 is a configurable, single-channel dual-phase sub-PMIC designed for high-performance mobile processors and memory. It operates with an input voltage range of 2.5 V to 5.5 V and delivers up to 10 A output current. The device supports adjustable output voltages from 0.3 V to 1.9 V with ±1% static accuracy. It features a 4 MHz switching frequency, I²C FM+ interface, and five configurable GPIOs. Packaged in a 24-WLCSP (2.5 mm x 1.7 mm) format, it functions within a temperature range of -40 °C to +85 °C.

Feature Summary

• Configurable dual-phase architecture supporting up to 10 A output current for CPU and DDR memory rails
• High precision regulation with ±1% static accuracy and differential voltage detection for strict SoC requirements
• Flexible input compatibility allowing operation from single lithium-ion batteries or standard 3.3 V/5 V system rails
• Integrated monitoring capabilities including voltage, current, and temperature sensing with programmable soft-start

Applications

• Powering CPU cores in smartphones and tablets
• Supplying power to GPU circuits in handheld devices
• Providing regulated voltage for DDR memory tracks in mobile platforms
• Powering RF modules and other subsystems in portable electronics

Procurement Notes

Verify the specific suffix A0V72 against the manufacturer's official datasheet to confirm package type and electrical specifications. Ensure the design accounts for the WLCSP-24 footprint dimensions and pitch. Confirm RoHS compliance status through the latest product documentation before integration into production systems.

Selection Notes

Select this component when designing power stages for high-current mobile applications requiring compact form factors. The 4 MHz switching frequency allows for smaller external inductors compared to lower-frequency alternatives. Verify that the required output voltage range falls within the 0.3 V to 1.9 V limits and that the input supply matches the 2.5 V to 5.5 V specification.

Part Context

This device belongs to the DA9121 series of sub-PMICs from Renesas Electronics. It is specifically engineered as a step-down DC/DC converter channel for mobile system-on-chip (SoC) environments. The series targets applications demanding high efficiency and minimal board space consumption for critical processor and memory power domains.

Replacement Considerations

Consult official Renesas documentation for qualified substitute part numbers. Cross-referencing should be limited to components explicitly listed as compatible or direct replacements in the manufacturer's selection guide.