DA9131-XXRT2-A

Overview

The DA9131-XXRT2-A is a high-performance, dual-channel DC-DC converter from the Renesas DA9131 series. It features two independent step-down channels, each delivering up to 5A of output current with integrated switching FETs. The device operates within an input voltage range of 2.8V to 5.5V and supports programmable output voltages from 300mV to 1.9V. It utilizes a 4MHz switching frequency and includes an I2C interface for configuration. The component is housed in a 24-pin FCQFN package (3.3mm x 4.8mm) and is designed for applications requiring efficient power delivery to high-current rails.

Feature Summary

• Dual-channel architecture providing independent 5A outputs per channel with fully integrated switching FETs
• I2C-compatible interface enabling programmable control, monitoring, and GPIO configuration
• Advanced protection mechanisms including output overvoltage/undervoltage, input undervoltage, and two-level overtemperature protection
• Dynamic Voltage Control (DVC) capability for adaptive output regulation based on load conditions

Applications

• High-performance mobile processors
• Mobile memory systems
• Automotive infotainment units
• Advanced Driver Assistance Systems (ADAS)

Procurement Notes

Verify the specific suffix code against the manufacturer's official documentation to confirm exact electrical parameters, as custom variants may have unique configurations. Confirm moisture sensitivity handling requirements prior to assembly. Ensure the selected variant matches the required automotive or industrial qualification level. Check for any non-standard ordering constraints associated with the XX designation.

Selection Notes

Select this component when designing systems that require two independent high-current power rails from a single IC. It is suitable for space-constrained designs due to its small footprint and minimal external component count. Consider the thermal performance benefits of integrated FETs versus discrete solutions. Verify compatibility with the system's I2C bus speed and address requirements.

Part Context

The DA9131-XXRT2-A belongs to the DA9131 family of sub-PMICs developed by Renesas Electronics. This series is part of a scalable portfolio designed for flexible power management in mobile and automotive applications. The 'XX' in the part number typically indicates a customizable or special order variant, distinct from standard fixed-output models like the DA9131-42RT2.

Replacement Considerations

Standard equivalents include DA9131-42RT2 and DA9131-44RT2 for fixed output requirements. For automotive-grade versions, consider the DA9131-A series. Verify pinout and thermal characteristics before substituting.