DA9132-XXRT2-AT

Overview

The DA9132-XXRT2-AT is a high-efficiency dual-channel step-down DC/DC converter from Renesas Electronics. It integrates switching FETs to deliver 3A per channel, with an input voltage range of 2.8V to 5.5V and an output voltage range of 0.3V to 1.9V. Operating at a switching frequency of 4MHz, the device achieves efficiency exceeding 90%. It features dynamic voltage control, programmable GPIOs, and I2C communication. The component is housed in a 24-pin WFQFN package (3.3mm x 4.8mm) and operates within a temperature range of -40°C to +105°C.

Feature Summary

• Dual-channel architecture providing independent 3A current capability per channel for efficient power delivery.
• Integrated switching FETs eliminate the need for external transistors or Schottky diodes, simplifying design.
• Dynamic voltage control allows adaptive voltage scaling based on processor load via I2C or external pins.
• Compact footprint optimized for space-constrained applications using small 0.10μH inductors.

Applications

• Powering high-current rails in mobile processors and memory systems
• Supplying low-voltage logic and core circuits in consumer electronics
• Providing efficient power conversion for compact embedded processing units

Procurement Notes

Verify the specific suffix 'AT' against official Renesas documentation to confirm exact tape-and-reel specifications and moisture sensitivity level. Ensure compatibility with standard I2C addressing and check for any automotive qualification requirements if deploying in regulated environments. Confirm pinout alignment with the 24-pin WFQFN layout during schematic capture.

Selection Notes

Select this component when dual isolated outputs are required with moderate current demands up to 3A per rail. It is suitable for designs prioritizing thermal management through high efficiency and integrated FETs. Consider the 4MHz switching frequency for smaller passive components compared to lower-frequency alternatives. Verify that the 0.3V to 1.9V output range meets the target load requirements without needing external dividers for voltages above 1.9V.

Part Context

The DA9132 belongs to Renesas' Sub-PMIC family, designed for flexible and scalable power solutions. It complements other devices like the DA9131, which offers higher 5A per channel capacity. This series targets applications requiring efficient, compact power management for digital loads in portable and industrial devices.

Replacement Considerations

The DA9131-XXRT2 serves as a higher-current alternative with 5A per channel capability. Both share similar packaging and interface protocols but differ in output current ratings and potentially switching frequencies. Evaluate thermal dissipation needs when substituting between these models.

FAQ

How is the output voltage programmed?

Output voltages between 0.3V and 1.9V are set internally via I2C registers. For voltages above 1.9V, an external resistor divider is required.

What protection features are included?

The device includes integrated over-temperature protection, over-current protection, and input undervoltage lockout to ensure system reliability.