DA9132-XXRT1-AT

Overview

The DA9132-XXRT1-AT is a high-performance, dual-channel step-down DC/DC converter from the Renesas DA9132 series. It integrates two independent channels, each capable of delivering up to 3A of output current. The device operates with an input voltage range of 2.5V to 5.5V and provides adjustable output voltages between 0.3V and 1.9V. It utilizes a 24-pin FCQFN package (3.3mm x 4.8mm) designed for surface mount technology. The component supports I2C communication for configuration and control, featuring integrated power FETs and a switching frequency of 4MHz. It is rated for operation in temperatures ranging from -40°C to +105°C.

Feature Summary

• Dual-channel architecture providing independent 3A current capability per channel for efficient power distribution.
• Integrated synchronous FETs and compact passive requirements enable optimized board space and bill of materials.
• I2C programmable interface allows dynamic voltage control and flexible system configuration.
• High conversion efficiency exceeding 90% reduces thermal design challenges in dense electronic systems.

Applications

• Powering high-performance mobile processors requiring multiple low-voltage rails
• Sub-PMIC solutions for automotive infotainment and instrument clusters
• Portable electronics and handheld devices with strict size constraints
• Industrial control systems needing reliable multi-rail power management

Procurement Notes

Verify the specific suffix 'AT' against official Renesas documentation to confirm tape and reel packaging specifications and moisture sensitivity level. Ensure compatibility with I2C address settings defined in the datasheet. Confirm that the OTP programming status aligns with project timelines, as finalized parts may become non-changeable requests. Check for any automotive qualification requirements if deploying in AEC-Q100 environments.

Selection Notes

Select this component when dual isolated outputs are required within a compact footprint. Compare against the DA9131 series if higher current capacity (5A) is needed. Consider the DA9132-A variant if explicit automotive grade certification is mandatory. Evaluate thermal performance based on the specific PCB copper area and airflow conditions, as efficiency impacts heat dissipation significantly at full load.

Part Context

The DA9132 belongs to Renesas's Sub-PMIC family, designed specifically for complex SoC power sequencing. It complements main PMICs by handling high-current digital core supplies. The series emphasizes miniaturization through integrated magnetics-compatible designs and advanced control loops. This part number represents a specific packaging and temperature grade variation within the broader DA9132 product line.

Replacement Considerations

Direct substitutes include other DA9132 variants with different suffixes for packaging or temperature ranges. Cross-reference pinouts carefully when considering alternative manufacturers' dual-channel buck converters. Verify that replacement components support the same I2C command set if software migration is not planned.