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Product Detailed Parameters
- Description：IC REG BUCK ADJ 10A 24FCQFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：0.3V
- Voltage - Output (Max)：1.9V
- Current - Output：10A
- Frequency - Switching：4MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：24-PowerUFQFN
- Supplier Device Package：24-FCQFN (3.3x4.8)
- Grade：-
- Qualification：-
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Overview
The DA9131-XXRT2 is a dual-channel, high-efficiency step-down DC/DC converter manufactured by Renesas Electronics. It features integrated switching FETs delivering 5A per channel with an input voltage range of 2.8V to 5.5V and an output voltage range of 0.3V to 1.9V. The device operates at a nominal switching frequency of 4MHz and achieves efficiency levels above 90%. It includes I2C-compatible interface (FM+), programmable GPIOs, and remote sensing for precise voltage regulation. Key safety features include output undervoltage/overvoltage protection, input undervoltage protection, and two-step over-temperature protection.
Feature Summary
- Dual-channel buck converter architecture with fully integrated switching FETs eliminating the need for external components
- I2C-compatible interface supporting FM+ speeds for digital control and monitoring
- Remote sensing capability ensures high accuracy across various PCB layout configurations
- Programmable soft-start limits inrush current while providing slope-controlled output voltage ramping
Applications
- High-performance mobile processors and memory power delivery
- Automotive infotainment and telematics systems
- Advanced Driver Assistance Systems (ADAS) processing units
- Switches and routers requiring efficient high-current rails
Procurement Notes
Verify the specific suffix configuration as this part number indicates a customizable or special order variant. Confirm that the One-Time Programmable (OTP) memory has been finalized, as parts may become non-cancellable and non-returnable (NCNR) upon programming. Ensure compatibility with the required I2C address and output voltage settings before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring dual independent 5A outputs from a single package. It is suitable for applications needing high efficiency to reduce thermal management complexity. Consider the FC-QFN-24 package dimensions for footprint constraints. Verify that the target application falls within the specified -40°C to +105°C temperature range if automotive or industrial grade reliability is required.
Part Context
The DA9131 belongs to Renesas' flexible and scalable sub-PMIC family designed for exact-fit power solutions. It complements other devices like the DA9132, which offers lower current ratings. This series supports both commercial and automotive-grade variants, enabling consistent design methodologies across different market segments while optimizing bill-of-materials through integrated magnetic and semiconductor components.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. For equivalent performance, evaluate the DA9131-A for automotive qualification requirements or the DA9132 if reduced current capacity is acceptable. Verify pinout and electrical parameter compatibility before substitution.
