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Renesas DA9224-XXFTD-A
- Part No.:
- DA9224-XXFTD-A
- Manufacturer:
- Renesas
- Package:
- 66-TFBGA
- Datasheet:
-
DA9224-XXFTD-A.pdf
- Description:
- IC REG BCK ADJ 8A/8A DL 66TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,121
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Product details
Overview
DA9224-XXFTD-A from Renesas Electronics is a dual-output automotive-grade PMIC integrating two independent dual-phase synchronous buck converters, each delivering up to 8 A output current. It operates from 2.8 V to 5.5 V input, supports programmable output voltages from 0.3 V to 1.57 V (extendable to 4.3 V via external resistor divider), and features 3 MHz switching frequency, ±1 % static output voltage accuracy, and remote sensing for point-of-load regulation in ADAS and infotainment CPU/GPU/DDR power rails.
For engineers reviewing the DA9224-XXFTD-A datasheet, DA9224-XXFTD-A pinout, DA9224-XXFTD-A application, or DA9224-XXFTD-A equivalent, key selection considerations include its AEC-Q100 Grade 2 qualification, dual 8 A output capability with dynamic voltage control (DVC), I²C/SPI-compatible interface, 66-ball TFBGA 0.8 mm pitch package, and integrated over-temperature/over-current protection without external FETs or diodes.
Technical Context
The DA9224-XXFTD-A implements two fully independent dual-phase buck regulators (Buck A and Buck B), each with dedicated switching nodes (LX_A1/LX_A2 and LX_B1/LX_B2), feedback sense pairs (FBAP/FBAN and FBBP/FBBN), and programmable current limits (4–7 A per phase). Its 3 MHz fixed-frequency PWM operation enables use of low-profile 0.22 µH inductors and supports automatic phase shedding for light-load efficiency.
Control is executed via a configurable 2-/4-wire digital interface (I²C/SPI-compatible) with programmable I²C address selection using GPI pins, enabling multi-PMIC bus sharing. Dynamic Voltage Control (DVC) allows real-time rail adjustment via register writes or dedicated DVS input pin, while remote sensing compensates for PCB IR drop across both outputs independently.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V - supports single-cell Li-ion and automotive 3.3 V/5 V supply domains. |
| Output Current Capability | 2 × 8 A - two independent dual-phase rails for CPU core and DDR memory or GPU and I/O domain. |
| Output Voltage Range | 0.3 V to 1.57 V (programmable in 10 mV steps); extended to 4.3 V with external resistor divider. |
| Switching Frequency | 3 MHz - enables compact 0.22 µH inductors and reduces output capacitor count vs lower-frequency alternatives. |
| Output Voltage Accuracy | ±1 % (static), ±3 % (dynamic) - ensures stable core voltage under fast load transients up to 10 A/µs. |
| Operating Temperature | −40 °C to +105 °C ambient - qualified to AEC-Q100 Grade 2 for under-hood and dashboard-mounted automotive systems. |
| Protection Features | Integrated over-current (per-phase programmable 4–7 A), over-temperature (warning/critical thresholds at 110–140 °C), and VDDIO UVLO (1.315–1.55 V). |
Pinout & Package
DA9224-XXFTD-A is housed in a 66-ball TFBGA package with 0.8 mm pitch, optimized for high-density automotive PCB layouts and thermal performance (θJA = 34.2 °C/W on 6-layer board). The package supports reflow soldering and meets automotive reliability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX_A1, LX_A2 LX_B1, LX_B2 | Switching node (x4 per buck) | High-current power path for each phase; requires low-inductance layout and local ceramic decoupling. |
| FBAP / FBAN FBBP / FBBN | Remote sense inputs (differential) | Enable point-of-load voltage regulation by measuring at CPU/GPU die pads, rejecting PCB trace resistance error. |
| VDD_A1/VDD_A2 VDD_B1/VDD_B2 | Phase supply inputs | Connect directly to VSYS; each group powers respective high-side/low-side FETs for one buck channel. |
| IC_EN | Digital enable input | Active-high logic control (VIH ≥ 1.1 V) with 750 µs enable delay; initiates soft-start sequence. |
| nIRQ | Open-drain interrupt output | Asserts on fault conditions (OCP, OTP, PG fail); requires external pull-up to VDDIO. |
| SDA / SCL nCS / SO / SK | I²C/SPI-compatible interface | Configurable 2-wire (I²C) or 4-wire (SPI-like) communication; supports multi-device addressing via GPI. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Control (DVC) | Real-time output voltage adjustment via register write or dedicated DVS pin - enables processor DVFS without host software intervention. |
| Automatic Phase Shedding | Reduces active phases under light load to maintain >85 % efficiency at 100 mA - critical for always-on ADAS subsystems. |
| Integrated Power Switches | On-resistances of 29 mΩ (PMOS) and 21 mΩ (NMOS) per phase - eliminates external FETs and Schottky diodes, reducing BOM count and layout area. |
| Remote Sensing Architecture | Dual differential sense pairs (FBAP/FBAN and FBBP/FBBN) - corrects for up to 50 mV IR drop between PMIC and load, ensuring ±1 % regulation at point-of-load. |
| AEC-Q100 Grade 2 Qualification | Validated for −40 °C to +105 °C operation with lifetime reliability testing - meets functional safety requirements for ASIL-B automotive subsystems. |
Applications
| Application 1 | Application 2 |
|---|---|
Use Scenario: Power delivery to dual-core application processor in automotive head unit with dynamic workload scaling. IC Role / Device Role / Timing Role: Dual-rail PMIC supplying core (Buck A) and I/O (Buck B) domains independently, synchronized to processor DVFS commands via DVC pin. Use Value: Enables 15 % reduction in system standby power via phase shedding and maintains <±15 mV voltage deviation during 5 A transient load steps. | Use Scenario: DDR4 memory rail generation in digital instrument cluster with strict noise and ripple requirements. IC Role / Device Role / Timing Role: Buck B configured for 1.2 V @ 8 A with remote sensing at memory controller VDDQ pins and 3 MHz switching to minimize EMI in proximity to display timing circuits. Use Value: Achieves <10 mV peak-to-peak ripple and ±0.5 % regulation accuracy across temperature, eliminating need for post-regulator LDOs. |
| Application 3 | Application 4 |
Use Scenario: GPU power management in rear-seat entertainment system with thermal constraints. IC Role / Device Role / Timing Role: Buck A delivers 0.85 V @ 8 A to GPU core; thermal warning interrupt (nIRQ) triggers host throttling before junction exceeds 125 °C. Use Value: Integrated OTP and thermal monitoring reduce external component count by 4 parts versus discrete solution, saving 12 mm² PCB area. | Use Scenario: Multi-PMIC configuration in centralized vehicle computer supporting camera fusion and radar processing. IC Role / Device Role / Timing Role: Three DA9224-XXFTD-A devices share I²C bus via GPI-configured addresses, each powering distinct SoC subsystems (vision, radar, comms). Use Value: Eliminates bus contention and enables coordinated rail sequencing across 6 independent power domains with single host controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 | Single 12 A buck; no dual-rail integration; requires external I²C expander for multi-rail coordination. | Suitable for single-rail CPU cores but lacks native dual-output independence and remote sensing per rail. | Select when only one high-current rail is needed and cost-per-amp is prioritized over integration. |
| TPS659424-Q1 | Quad-buck PMIC with 4× 6 A outputs; higher pin count (100-ball BGA); supports CAN FD communication interface. | Better suited for complex domain controllers requiring >2 rails, but over-specified for dual-rail ADAS camera modules. | Select when expanding to 3+ independent rails or requiring CAN-based system-level power coordination. |
Compared with MPQ4436-AEC1 and TPS659424-Q1, DA9224-XXFTD-A provides optimal integration for dual-rail automotive SoCs-offering matched 2× 8 A capability, per-rail remote sensing, and minimal footprint (66-ball vs 100-ball), while avoiding the complexity of external coordination required by single-channel alternatives.
Availability
DA9224-XXFTD-A is available at Aetrix Electronics and suitable for automotive in-vehicle infotainment, ADAS camera modules, and digital instrument clusters requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for DA9224-XXFTD-A 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 SoC solutions for automotive, industrial, and enterprise applications.
The DA9224-XXFTD-A belongs to Renesas' automotive-qualified PMIC portfolio, designed specifically to meet the stringent voltage accuracy, transient response, and functional safety demands of modern ADAS and infotainment processors.
FAQ
What is the maximum output current per rail supported by the DA9224-XXFTD-A?
The DA9224-XXFTD-A supports up to 8 A per output rail (Buck A and Buck B), delivered through two independent dual-phase buck converters. Each phase is rated for 4 A minimum and 7 A maximum (programmable), allowing full 8 A operation with both phases active per rail. This is confirmed in the datasheet's "Key Features" and Table 5 (IO_MAX = 4000 mA per phase).
Does the DA9224-XXFTD-A require external MOSFETs or Schottky diodes?
No, the DA9224-XXFTD-A integrates all power switches - including high-side PMOS (29 mΩ) and low-side NMOS (21 mΩ) per phase - eliminating the need for external FETs or Schottky diodes. This is explicitly stated in the General Description and verified in Table 5's RON_PMOS/RON_NMOS specifications.
How does remote sensing work on the DA9224-XXFTD-A, and which pins are used?
The DA9224-XXFTD-A implements remote sensing using two differential pairs: FBAP/FBAN for Buck A and FBBP/FBBN for Buck B. These pins connect directly to the load's voltage input (e.g., CPU core VDD pins) to compensate for PCB trace resistance. The feature is documented in the General Description and Pin Description table (pins B6, C6, D6, E6).
What communication interfaces does the DA9224-XXFTD-A support, and how are they configured?
The DA9224-XXFTD-A supports both 2-wire (I²C-compatible) and 4-wire (SPI-like) digital interfaces via shared pins (SDA/SI, SCL/SK, nCS/GPI4, SO/GPIO3). Interface mode is determined by strap configuration and register settings, with I²C address selectable via GPI pins. Details are in Section 7.4 and Tables 8–9 of the datasheet.
Is the DA9224-XXFTD-A qualified for automotive applications, and what is its temperature rating?
Yes, the DA9224-XXFTD-A is AEC-Q100 Grade 2 qualified, rated for −40 °C to +105 °C ambient operating temperature and junction temperatures up to +125 °C. Thermal warning (110–140 °C) and critical (125–155 °C) thresholds are defined in Table 6, confirming its suitability for under-dash and engine-compartment-proximate automotive systems.
DA9224-XXFTD-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 66-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Programmable)
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.3V
- Voltage - Output (Max):
- 4.3V
- Current - Output:
- 8A, 8A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 66-TFBGA (9x5)
DA9224-XXFTD-A FAQ
1.How can I place an order for DA9224-XXFTD-A through Aetrix?
Please submit a Request for Quotation (RFQ) for DA9224-XXFTD-A 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 DA9224-XXFTD-A reliable?
The price and inventory of DA9224-XXFTD-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9224-XXFTD-A is usually 5 days.
3.What payment methods are accepted for DA9224-XXFTD-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9224-XXFTD-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA9224-XXFTD-A?
DA9224-XXFTD-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA9224-XXFTD-A 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 DA9224-XXFTD-A?
For technical support, including DA9224-XXFTD-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9224-XXFTD-A requirements.
6.How does Aetrix verify that DA9224-XXFTD-A is sourced from the original manufacturer or authorized distributors?
All DA9224-XXFTD-A 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 DA9224-XXFTD-A meets industry standards.
7.What is the process for return or replacement of DA9224-XXFTD-A?
All DA9224-XXFTD-A units undergo pre-shipment inspection (PSI). If there is an issue with DA9224-XXFTD-A, 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 DA9224-XXFTD-A part is unused and in its original packaging.
Return procedure for DA9224-XXFTD-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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