My Inquiry
My Account
Renesas DA9131-XXRT2-AT
- Part No.:
- DA9131-XXRT2-AT
- Manufacturer:
- Renesas
- Package:
- 24-PowerUFQFN
- Datasheet:
-
DA9131-XXRT2-AT.pdf
- Description:
- IC REG BUCK ADJ 10A 24FCQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,101
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DA9131-XXRT2-AT from Renesas Electronics is a dual-channel, AEC-Q100 Grade 2 qualified automotive PMIC integrating two fully synchronous buck converters delivering up to 5 A per channel at 0.3 V–1.9 V output, with 4 MHz switching frequency, remote sensing, and I²C-compatible FM+ interface for dynamic voltage control in CPU/GPU/DDR power rails.
For engineers reviewing the DA9131-XXRT2-AT datasheet, DA9131-XXRT2-AT pinout, DA9131-XXRT2-AT application, or DA9131-XXRT2-AT equivalent, this page delivers verified specifications, validated pin functions, automotive-grade thermal and protection features, and real-world use cases in ADAS, infotainment, and SIPP modules - all confirmed against Renesas R16DS0569EJ0300 Rev.03.00.
Technical Context
The DA9131-XXRT2-AT implements two independent single-phase buck regulators with integrated high-side and low-side MOSFETs, supporting programmable soft-start, cycle-by-cycle current limiting, and thermal shutdown at 150 °C junction. Each channel uses remote-sense differential feedback (FB1P/FB1N, FB2P/FB2N) for ±1% static output accuracy under load transients of ±5%.
Its digital control core supports I²C FM+ (1 MHz max) communication, configurable GPIOs (GPIO0–GPIO4), interrupt-driven fault reporting via nIRQ, and Dynamic Voltage Control (DVC) through register writes or dedicated input pins - enabling adaptive SoC rail scaling without external supervision circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V - compatible with automotive 3.3 V/5 V bias rails and battery-supplied systems with transient tolerance. |
| Output Voltage Range | 0.3 V to 1.9 V per channel - supports modern low-voltage CPU cores, GPU logic, and DDR memory I/O rails. |
| Max Output Current | 5 A per channel - sufficient for high-performance automotive SoCs and FPGA-based ECUs without external FETs. |
| Switching Frequency | 4 MHz nominal - enables use of ultra-small 220 nH inductors and compact 218 mm² total solution area. |
| Output Accuracy | ±1 % static, ±5 % dynamic - achieved via remote sensing and integrated error amplifiers, eliminating PCB trace IR drop errors. |
| Operating Temp | −40 °C to +105 °C ambient - meets AEC-Q100 Grade 2 requirements for under-hood and cabin electronics. |
| Protection Features | Integrated over-current, over-temperature, and undervoltage lockout - no external sensors or discrete protection ICs required. |
| Interface | I²C-compatible FM+ (1 MHz) with configurable slave address - supports multi-PMIC daisy-chaining and system-level power sequencing. |
Pinout & Package
DA9131-XXRT2-AT is housed in a 24-pin FCQFN package (3.3 mm × 4.8 mm) with wettable flanks for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVDD1, PVDD2 | Power supply inputs | Dedicated 5 A-rated inputs per channel - decoupled separately to minimize cross-regulator noise coupling. |
| LX1, LX2 | Buck switch node outputs | High-current analog outputs driving external 220 nH inductors - require tight layout with low-inductance PGND return paths. |
| FB1P/FB1N, FB2P/FB2N | Differential remote sense inputs | Enable Kelvin connection to load point - maintains ±1% regulation accuracy despite PCB trace resistance up to 50 mΩ. |
| SCL/GPIO3, SDA/GPIO4 | I²C bus interface | FM+-compliant bidirectional lines - support 1 MHz operation and configurable pull-up strength for noise-immune automotive buses. |
| CONF/GPIO0 | Configuration select / GPIO | Determines I²C slave address at power-on - allows up to 4 unique DA9131-XXRT2-AT instances on same bus without address conflict. |
| IC_EN | Global enable input | Active-high digital enable - synchronizes startup of both buck channels and internal LDOs for deterministic power-up sequencing. |
| PGND (Pins 19–22) | Power ground | Four dedicated high-current ground terminals - reduce thermal resistance and improve EMI performance by separating power and analog grounds. |
| AVDD, AGND | Analog supply & ground | Isolated 10 mA analog domain - powers internal references, ADCs, and error amplifiers independently from noisy power-switching paths. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated buck FETs | Eliminates need for 4 external MOSFETs or Schottky diodes - reduces BoM count, layout area, and thermal hotspots. |
| Remote-sense differential feedback | Maintains ±1% output accuracy at load point despite PCB routing variations - critical for DDR termination and GPU core stability. |
| Programmable soft-start | Configurable ramp rate limits inrush current during power-up - prevents input rail collapse and avoids false over-current trips. |
| Dynamic Voltage Control (DVC) | Adjusts VOUT in real time via I²C or GPIO pin - enables SoC-level power state transitions (e.g., C-states) without firmware intervention. |
| AEC-Q100 Grade 2 qualification | Validated for −40 °C to +105 °C operation with 10-year lifetime under automotive stress profiles - supports ASIL-B system integration. |
| Integrated thermal protection | Hardware-monitored junction temperature with warning (T_WARN) and critical (TCRIT) thresholds - triggers graceful shutdown before damage occurs. |
Applications
| ADAS Camera Module | Infotainment Head Unit |
|---|---|
Use Scenario: Dual-rail power delivery for image signal processor (ISP) and high-speed MIPI serializer in front-facing camera ECU. IC Role / Device Role / Timing Role: Primary PMIC supplying 1.1 V core and 1.8 V I/O rails with synchronized startup and DVC-triggered voltage scaling during low-light mode. Use Value: Remote sensing ensures stable 1.1 V under dynamic ISP load steps; 4 MHz switching minimizes EMI near RF-sensitive camera sensors. |
Use Scenario: Power management for quad-core application processor and LPDDR4 memory in 10.25-inch touchscreen head unit. IC Role / Device Role / Timing Role: Dual-buck regulator delivering 0.85 V CPU core and 1.1 V DDR VDDQ, coordinated via I²C for DVFS and thermal throttling. Use Value: ±1% output accuracy prevents DDR timing violations; wettable-flank QFN enables AOI-compatible reflow for high-volume automotive assembly. |
| Automotive Cluster Display | SIPP-Based Telematics Module |
Use Scenario: Compact power solution for TFT-LCD controller and graphics accelerator in digital instrument cluster with <100 ms boot requirement. IC Role / Device Role / Timing Role: Single-chip dual-buck source for 1.0 V GPU and 1.2 V display interface, with programmable soft-start meeting boot-time spec. Use Value: Integrated OCP and OTP eliminate external protection components; 218 mm² solution area fits constrained cluster PCB space. |
Use Scenario: Powering cellular modem (LTE/C-V2X) and GNSS receiver in telematics control unit using SIPP module architecture. IC Role / Device Role / Timing Role: Dual-channel PMIC supplying 1.05 V modem core and 1.8 V RF front-end, with independent enable control for power domain isolation. Use Value: CONF/GPIO0 address selection allows co-location with other DA9131-XXRT2-AT units in multi-rail SIPP designs without I²C bus contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 | Single-channel 6 A buck; requires two devices for dual-rail; no remote sensing; 2.5 MHz switching. | Lacks integrated DVC and differential feedback - needs external DAC and op-amps for adaptive voltage scaling. | Choose when cost-per-amp is prioritized over solution size and precision; not suitable for DDR or GPU rails requiring ±1% accuracy. |
| TPS659422-Q1 | 6-channel PMIC with buck/boost/LDOs; larger 48-pin VQFN; 2.2 MHz switching; supports ASIL-D functional safety. | Over-specified for dual-rail use - higher BoM cost and layout complexity; includes unused channels and safety monitors. | Prefer when full ECU power tree (including CAN, USB, and safety-critical rails) must be consolidated into one IC. |
Compared with MPQ4436-AEC1 and TPS659422-Q1, the DA9131-XXRT2-AT delivers optimal balance of dual-rail integration, ±1% remote-sense accuracy, 4 MHz compactness, and AEC-Q100 Grade 2 compliance - making it the most efficient fit for CPU/GPU/DDR power in space-constrained automotive modules.
Availability
DA9131-XXRT2-AT is available at Aetrix Electronics and suitable for vehicle infotainment systems, ADAS camera ECUs, and automotive telematics modules requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant traceability.
Supply support for DA9131-XXRT2-AT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog power, and automotive SoC solutions, with deep expertise in functional safety and ASIL-compliant design.
The DA9131-XXRT2-AT belongs to Renesas' DA-series automotive PMIC product line, engineered specifically for high-efficiency, high-accuracy power delivery to next-generation automotive processors and memory subsystems in harsh thermal environments.
FAQ
What is the maximum supported switching frequency for DA9131-XXRT2-AT?
The DA9131-XXRT2-AT operates at a nominal 4 MHz switching frequency, as specified in the R16DS0569EJ0300 Rev.03.00 datasheet Section 3.5. This fixed frequency enables consistent EMI profile and supports ultra-small 220 nH inductors. The device does not support frequency modulation or spread-spectrum operation - the 4 MHz value is guaranteed across −40 °C to +105 °C ambient and full input/output load range. DA9131-XXRT2-AT's oscillator is trimmed and tested to maintain ±10% tolerance under all operating conditions.
Does DA9131-XXRT2-AT support remote sensing for both output channels?
Yes, DA9131-XXRT2-AT provides dedicated differential remote-sense inputs for each channel: FB1P/FB1N for Channel 1 and FB2P/FB2N for Channel 2. These pins connect directly to the load point to compensate for PCB trace resistance, ensuring ±1% static output voltage accuracy regardless of board layout. The datasheet confirms this capability in Sections 2.2 (Pin Descriptions) and 3.5 (Buck Characteristics), and Figure 1 shows the Kelvin connection topology. DA9131-XXRT2-AT requires no external op-amps or compensation networks to achieve this accuracy.
What package type and dimensions does DA9131-XXRT2-AT use?
DA9131-XXRT2-AT uses a 24-pin FCQFN package measuring 3.3 mm × 4.8 mm with wettable flanks, as documented in Section 9 of the R16DS0569EJ0300 Rev.03.00 datasheet and Figure 19. The package has exposed thermal pad (PGND-connected) and 0.4 mm pitch, optimized for automotive reflow profiles and AOI compatibility. Pin 1 is located at the bottom-left corner per standard QFN orientation. DA9131-XXRT2-AT's footprint matches JEDEC MO-220WEED, and recommended land pattern details are provided in Figure 20 and Section 11.1.
How is Dynamic Voltage Control (DVC) implemented on DA9131-XXRT2-AT?
DA9131-XXRT2-AT supports DVC via two hardware-configurable methods: (1) direct register writes over its I²C FM+ interface (address selectable via CONF/GPIO0), or (2) dedicated GPIO input pins (e.g., GPIO1 or GPIO2 configured as DVC control). The datasheet Section 5.1.4 and Table 17 confirm DVC mode mapping, and Section 7.1.2 lists BUCK_BUCK1_0–BUCK_BUCK1_6 registers for real-time VOUT adjustment. DA9131-XXRT2-AT applies DVC updates within one switching cycle - no software polling or delay is needed for SoC power-state transitions.
Is DA9131-XXRT2-AT qualified to AEC-Q100 standards?
Yes, DA9131-XXRT2-AT is AEC-Q100 Grade 2 qualified, rated for −40 °C to +105 °C ambient operation with full stress testing including HTOL, TC, UHAST, and ESD per HBM 2 kV / CDM 500 V. This qualification is explicitly stated on page 1 of the R16DS0569EJ0300 Rev.03.00 datasheet and verified in Section 3.3 (Recommended Operating Conditions) and Table 6 (Package Ratings). DA9131-XXRT2-AT meets automotive reliability requirements for non-engine-compartment applications such as infotainment, ADAS, and telematics modules.
DA9131-XXRT2-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-PowerUFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-FCQFN (3.3x4.8)
DA9131-XXRT2-AT FAQ
1.How can I place an order for DA9131-XXRT2-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for DA9131-XXRT2-AT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DA9131-XXRT2-AT reliable?
The price and inventory of DA9131-XXRT2-AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9131-XXRT2-AT is usually 5 days.
3.What payment methods are accepted for DA9131-XXRT2-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9131-XXRT2-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA9131-XXRT2-AT?
DA9131-XXRT2-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA9131-XXRT2-AT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DA9131-XXRT2-AT?
For technical support, including DA9131-XXRT2-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9131-XXRT2-AT requirements.
6.How does Aetrix verify that DA9131-XXRT2-AT is sourced from the original manufacturer or authorized distributors?
All DA9131-XXRT2-AT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DA9131-XXRT2-AT meets industry standards.
7.What is the process for return or replacement of DA9131-XXRT2-AT?
All DA9131-XXRT2-AT units undergo pre-shipment inspection (PSI). If there is an issue with DA9131-XXRT2-AT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DA9131-XXRT2-AT part is unused and in its original packaging.
Return procedure for DA9131-XXRT2-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DA9131-XXRT2-AT Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
