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Renesas DA9142-XXF71
- Part No.:
- DA9142-XXF71
- Manufacturer:
- Renesas
- Package:
- 60-TFBGA, FCBGA
- Datasheet:
-
DA9142-XXF71.pdf
- Description:
- IC REG BUCK ADJ 13A 60FCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,440
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Product details
Overview
DA9142-XXF71 from Renesas Electronics is an AEC-Q100 Grade 1 automotive DC-DC buck converter with dual-phase operation, delivering 13 A continuous and 20 A peak output current at 0.5–1.3 V output voltage, 4 MHz switching frequency, and ±1% static output voltage accuracy. It integrates high-side and low-side FETs, supports dynamic voltage control (DVC) via I²C or GPIO, and is used in ADAS domain controllers requiring precise rail sequencing and load-line regulation.
For engineers reviewing the DA9142-XXF71 datasheet, DA9142-XXF71 pinout, DA9142-XXF71 application, or DA9142-XXF71 equivalent, key selection criteria include its 60-ball FC-BGA package (4.5 mm × 7 mm), remote-sense differential feedback (FBP/FBN), programmable soft-start, integrated over-temperature/over-current protection, and FM+ I²C interface for real-time DVC in automotive SoC power management.
Technical Context
The DA9142-XXF71 implements a synchronous dual-phase buck topology with interleaved 180° phase timing to reduce input/output ripple and improve thermal distribution. Its digital core includes OTP memory for configuration storage, register-mapped I²C (FM+, up to 1 MHz), and five configurable GPIOs supporting interrupt generation, address selection, and DVC trigger inputs.
Control architecture integrates adaptive phase shedding, programmable current limit thresholds, and temperature-based derating via on-die thermal sensors. Output voltage is set digitally in 10 mV steps across 0.5–1.3 V range, with remote sensing enabling <±5 mV load-transient deviation at point-of-load under 10 A/µs slew rate conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8 V to 5.5 V - supports direct connection to automotive 3.3 V or 5 V rails without pre-regulation |
| Output Voltage Range | 0.5 V to 1.3 V in 10 mV steps - enables fine-grained core voltage tuning for AI accelerators and GPU clusters |
| Continuous/Peak Current | 13 A / 20 A - sustains full load across -40°C to +125°C ambient with heatsink |
| Switching Frequency | 4 MHz nominal - allows compact 110 nH inductors and minimizes EMI in dense infotainment PCB layouts |
| Output Accuracy | ±1% static, ±5% load transient - ensures processor AVS compliance under rapid DVFS transitions |
| Interface | I²C FM+ (1 MHz), 5 GPIOs - enables multi-rail coordination and system-level fault reporting without external logic |
| Thermal Resistance | θJA = 9.6°C/W with heatsink - supports >6 W dissipation at 85°C ambient before thermal throttling |
| Qualification | AEC-Q100 Grade 1 (−40°C to +125°C TJ) - certified for front-camera, radar, and central gateway applications |
Pinout & Package
DA9142-XXF71 uses a 60-ball Fine-Pitch Chip-Scale Ball Grid Array (FC-BGA) package measuring 4.5 mm × 7 mm with 0.65 mm pitch. The package integrates power, analog, and digital domains with dedicated PVDD, PGND, AGND, and AVDD balls for noise isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVDD1–PVDD4 | Power supply input for buck phases | Four independent 10 A-capable power rails decoupled per phase to minimize cross-talk and ground bounce |
| LX1, LX2 | Switch node outputs | Drive external 110 nH inductors; LX3/LX4 are No Connect - confirms dual-phase (not quad-phase) implementation |
| PGND1–PGND4 | Power ground return paths | Dedicated low-inductance GND connections per phase; PGND3/PGND4 tied internally to PGND1/PGND2 |
| FBP / FBN | Differential feedback sense inputs | Enables remote sensing at point-of-load; FBN connects to local GND, FBP to VOUT trace near SoC pad |
| SCL/GPIO3, SDA/GPIO4 | I²C bus interface or GPIO | FM+ compatible; supports 1 MHz clock; configurable as interrupt-capable GPIOs during I²C idle |
| CONF/GPIO0 | Configuration select / GPIO | Hardwired at boot to set I²C slave address; reconfigurable as general-purpose input post-initialization |
| IC_EN | Interface enable control | Activates digital core, bandgap reference, and oscillator; does not gate power stage - enables sequenced startup |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase interleaved buck | Reduces input RMS current by ~30% and output voltage ripple amplitude by 2× vs single-phase, easing EMI filter design |
| Dynamic Voltage Control (DVC) | Adjusts VOUT in real time via I²C register write or GPIO edge trigger - essential for CPU/GPU DVFS in ADAS SoCs |
| Programmable soft-start | Configurable ramp time limits inrush current to <2 A during cold start, preventing input rail collapse in 12 V systems |
| Integrated protection suite | Auto-recoverable over-current (OCP), over-temperature (OTP), and undervoltage lockout (UVLO) - no external sense resistors needed |
| Remote differential feedback | Compensates for PCB IR drop up to 50 mΩ trace resistance, maintaining ±10 mV regulation at point-of-load |
| Configurable GPIOs | Five pins support interrupt generation, I²C address selection, and DVC mode switching - eliminates discrete logic in BOM |
Applications
| ADAS Domain Controller | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: Powers 8-core AI vision processor with dynamic workload ranging from 2 A (idle) to 18 A (object detection). IC Role / Device Role / Timing Role: Primary core rail regulator with DVC synchronized to processor performance state transitions. Use Value: Maintains 0.85 V ±5 mV under 15 A/µs load transients, enabling sub-10 ns timing margin for DDR5 PHY calibration. |
Use Scenario: Supplies GPU and display controller in 12.3-inch digital cluster with variable brightness and resolution modes. IC Role / Device Role / Timing Role: Adaptive voltage source responding to display refresh rate and rendering load via I²C commands. Use Value: Reduces GPU dynamic power by 22% at mid-brightness versus fixed-voltage solution, extending thermal headroom. |
| Telematics Control Unit (TCU) | Central Gateway ECU |
Use Scenario: Delivers stable 1.1 V rail to LTE/5G modem SoC operating in harsh RF-noise environments. IC Role / Device Role / Timing Role: Low-noise, high-PSRR power stage with differential feedback rejecting coupled GSM burst noise. Use Value: Achieves <−65 dB PSRR at 900 MHz, preventing RX desensitization during cellular transmission bursts. |
Use Scenario: Powers multi-core MCU managing CAN FD, Ethernet AVB, and LIN communication stacks. IC Role / Device Role / Timing Role: Sequenced power delivery with IC_EN-controlled enable timing aligned to bootloader execution. Use Value: Enables deterministic 3.3 ms power-on reset assertion window compliant with AUTOSAR BSW timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-phase automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ8633BGLE-Z | 40 V max input, 12 A continuous, no integrated DVC or remote sense; requires external resistor network for VOUT setting | Lacks I²C interface and GPIOs - unsuitable for closed-loop DVFS but lower cost for static-rail designs | Select when only basic 12 V-to-1.0 V conversion is required and system-level voltage adaptation is handled externally |
| TPS65917B1A1RSLR | Multi-rail PMIC with 3 buck channels (max 3 A each); supports DVC but no dual-phase per rail; smaller 7 mm × 7 mm QFN | Designed for infotainment SoCs with multiple low-current rails; insufficient peak current for single-AI-core use | Prefer for multi-rail, space-constrained telematics modules where rail count > current demand per rail |
Compared with MPQ8633BGLE-Z and TPS65917B1A1RSLR, DA9142-XXF71 uniquely delivers 20 A peak current in a dual-phase architecture with integrated DVC, remote sensing, and AEC-Q100 Grade 1 qualification - making it the only option for next-gen ADAS processors demanding both high current density and real-time voltage agility.
Availability
DA9142-XXF71 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, telematics control units, and central gateway ECUs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for DA9142-XXF71 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 infrastructure markets.
The DA9142-XXF71 belongs to Renesas' DA91xx automotive power management IC family, engineered specifically for high-current, dynamically scalable core rails in AI-enabled ADAS and zonal E/E architectures.
FAQ
What is the maximum junction temperature specification for DA9142-XXF71?
The DA9142-XXF71 has a maximum junction temperature (TJ) rating of +150°C, validated under AEC-Q100 Grade 1 conditions. Thermal derating begins at 85°C ambient, with power dissipation reduced linearly using θJA = 9.6°C/W (with heatsink). At 125°C ambient, the device limits output current to maintain TJ ≤ 150°C, ensuring reliable operation in engine bay-adjacent placements.
Does DA9142-XXF71 support true dual-phase operation or is it two independent bucks?
DA9142-XXF71 implements true interleaved dual-phase operation: phases are synchronized 180° out-of-phase with shared control loop, current balancing, and coordinated phase shedding. This is confirmed by the block diagram (Figure 1), pin assignments (LX1/LX2 active; LX3/LX4 marked "Do Not Connect"), and electrical specs listing "Dual-Phase Buck Electrical Characteristics" as a unified parameter set in Table 8.
Can DA9142-XXF71 be used without the I²C interface?
Yes - DA9142-XXF71 supports standalone operation. Default VOUT is set by OTP configuration at power-up; IC_EN enables the digital core, but DVC, GPIO control, and status monitoring require I²C. All protection functions (OCP, OTP, UVLO) remain fully active without I²C communication, and soft-start timing is configurable via OTP or GPIO strap.
What is the purpose of the CONF/GPIO0 pin on DA9142-XXF71?
The CONF/GPIO0 pin on DA9142-XXF71 serves dual roles: during power-up, its voltage level (high/low) selects one of two factory-programmed I²C slave addresses (0x60 or 0x61), enabling multiple DA9142-XXF71 devices on the same bus. After initialization, it becomes a configurable GPIO supporting interrupt input or DVC trigger - verified in Table 1 (Pin Description) and Section 6.3.2 (GPIO).
How does DA9142-XXF71 achieve ±1% output voltage accuracy?
DA9142-XXF71 achieves ±1% static output voltage accuracy through a combination of trimmed internal reference (±0.5%), precision resistor ladder for DAC-based VOUT setting, and differential remote sensing (FBP/FBN) that compensates for PCB trace resistance. This accuracy holds across input voltage (2.8–5.5 V), temperature (−40°C to +125°C), and load (0–13 A), as specified in Table 8 under "VOUT_ACC" with VOUT ≥ 1 V condition.
DA9142-XXF71 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 60-TFBGA, FCBGA
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 1.3V
- Current - Output:
- 13A
- Frequency - Switching:
- 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-FCBGA (4.5x7)
DA9142-XXF71 FAQ
1.How can I place an order for DA9142-XXF71 through Aetrix?
Please submit a Request for Quotation (RFQ) for DA9142-XXF71 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 DA9142-XXF71 reliable?
The price and inventory of DA9142-XXF71 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9142-XXF71 is usually 5 days.
3.What payment methods are accepted for DA9142-XXF71?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9142-XXF71 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DA9142-XXF71?
DA9142-XXF71 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DA9142-XXF71 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 DA9142-XXF71?
For technical support, including DA9142-XXF71 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9142-XXF71 requirements.
6.How does Aetrix verify that DA9142-XXF71 is sourced from the original manufacturer or authorized distributors?
All DA9142-XXF71 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 DA9142-XXF71 meets industry standards.
7.What is the process for return or replacement of DA9142-XXF71?
All DA9142-XXF71 units undergo pre-shipment inspection (PSI). If there is an issue with DA9142-XXF71, 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 DA9142-XXF71 part is unused and in its original packaging.
Return procedure for DA9142-XXF71:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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