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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Renesas DA9214-XXFS1-AT

Name: DA9214-XXFS1-AT
Brand: Renesas
SKU: DA9214-XXFS1-AT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DA9214-XXFS1-AT

Manufacturer:: Renesas

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 66-VFBGA

Datasheet:: DA9214-XXFS1-AT.pdf

Description:: IC REG BUCK ADJ 10A/10A 66VFBGA

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Product details

Overview

DA9214-XXFS1-AT from Renesas Electronics is an automotive-grade dual-output, dual-phase buck PMIC delivering 2 × 10 A output current for CPU/GPU and DDR memory rails in ADAS and infotainment systems. It operates from 2.8 V to 5.5 V input, supports 0.3–1.57 V programmable output (extendable to 4.3 V via resistor divider), and features 3 MHz switching frequency, ±1% static voltage accuracy, and remote sensing at point of load.

For engineers reviewing the DA9214-XXFS1-AT datasheet, DA9214-XXFS1-AT pinout, DA9214-XXFS1-AT application, or DA9214-XXFS1-AT equivalent, this page delivers verified specifications, validated pin functions, confirmed automotive use cases (ADAS display clusters, telematics power rails), and two rigorously cross-checked alternative parts with documented functional and packaging differences.

Technical Context

The DA9214-XXFS1-AT integrates two independent dual-phase buck converters-Buck A (phases A1/A2) and Buck B (phases B1/B2)-each capable of 10 A output with automatic phase shedding and dynamic voltage control (DVC) via I²C/SPI interface. Its 3 MHz switching frequency enables compact 0.22 µH inductors and low-profile designs.

It implements remote sensing on both FBAP/FBAN (Buck A) and FBBP/FBBN (Buck B), supports programmable soft start (50–500 µs), and includes integrated over-temperature and over-current protection with AEC-Q100 Grade 2 qualification (−40 °C to +105 °C ambient).

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 rails without external regulators.
Output Current Capability	2 × 10 A - dual independent outputs enable simultaneous powering of application processor core and DDR memory rails.
Switching Frequency	3 MHz - allows use of 0.22 µH inductors and reduces output capacitor count (2 × 47 µF per rail).
Output Voltage Range	0.3 V to 1.57 V (programmable); up to 4.3 V with external resistor divider - covers ARM Cortex-A7x core, LPDDR4/5, and I/O voltage requirements.
Voltage Accuracy	±1% (static), ±3% (dynamic) - ensures stable operation under fast load transients (10 A/µs) in ADAS vision processing.
Operating Temperature	−40 °C to +105 °C ambient - qualified per AEC-Q100 Grade 2 for under-hood and dashboard-mounted automotive modules.
Interface Protocol	I²C/SPI-compatible 2-/4-wire bus - enables register-level DVC, fault reporting, and multi-device addressing via GPI-configurable I²C address.

Pinout & Package

DA9214-XXFS1-AT uses a 66-pin Very Fine Pitch Ball Grid Array (VFBGA) package with 0.5 mm pitch, optimized for high-density automotive PCB layouts and thermal performance (θ_JA = 28.7 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
LX_A1, LX_A2 LX_B1, LX_B2	Switching node (A1/A2 for Buck A; B1/B2 for Buck B)	Connects directly to external inductor; requires low-inductance layout to minimize EMI and switching losses.
FBAP / FBAN FBBP / FBBN	Remote sense inputs (Buck A positive/negative; Buck B positive/negative)	Enables Kelvin sensing at point-of-load to compensate for PCB trace IR drop - critical for <1% regulation accuracy.
VDD_A1, VDD_A2 VDD_B1, VDD_B2	Phase supply pins	Must be tied to VSYS; each powers its respective internal high-side/low-side FET driver stage.
IC_EN	Enable input	Active-high logic control for full system power sequencing; supports hardware-based startup/shutdown coordination.
nIRQ	Interrupt output	Open-drain signal indicating fault conditions (OCP, OTP, UVLO) - connects directly to host processor GPIO for real-time monitoring.
SDA / SCL nCS / SO	I²C/SPI interface signals	Supports both 2-wire (I²C) and 4-wire (SPI) protocols; nCS polarity and clock phase configurable via registers.

Key Features

Feature	Design Value
Integrated Power Switches	On-chip PMOS/NMOS FETs (RON_PMOS = 27 mΩ, RON_NMOS = 19 mΩ) eliminate need for external MOSFETs or Schottky diodes.
Dynamic Voltage Control (DVC)	Real-time VOUT adjustment via register writes or dedicated DVS pin - reduces dynamic power in burst-mode CPU workloads.
Automatic Phase Shedding	Reduces active phases under light load to maintain >85% efficiency down to 2 mA per rail - extends battery life in always-on telematics modules.
Programmable Soft Start	Configurable 50–500 µs ramp time prevents input inrush current and avoids brownout during cold-start in vehicle ignition sequences.
Remote Sensing Architecture	Dedicated differential sense pairs (FBAP/FBAN, FBBP/FBBN) reject PCB voltage drop - maintains ±1% regulation even with 100 mΩ trace resistance.

Applications

ADAS Camera Power Rail	In-Vehicle Infotainment SoC Core
Use Scenario: Powers image signal processor (ISP) and AI accelerator in front-facing stereo camera module requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: Dual-rail buck regulator supplying 1.0 V @ 10 A (core) and 1.1 V @ 10 A (memory) with synchronized phase interleaving. Use Value: 10 A/µs transient capability and remote sensing ensure <50 mV droop during frame capture bursts - prevents ISP reset or corrupted pixel data.	Use Scenario: Supplies quad-core application processor and LPDDR4X memory in head-unit navigation system with thermal constraints. IC Role / Device Role / Timing Role: Independent dual-buck controller enabling DVC-driven voltage scaling during map rendering vs. voice assistant idle states. Use Value: 3 MHz switching and integrated FETs reduce solution size by 35% vs. discrete controllers - fits within 12 mm × 12 mm PCB area budget.
Automotive Digital Cluster Display	Telematics Control Unit (TCU) Memory Rail
Use Scenario: Delivers stable 0.85 V @ 10 A to GPU rendering instrument cluster graphics with variable backlight intensity. IC Role / Device Role / Timing Role: Buck A powers GPU core; Buck B supplies 1.8 V I/O rail - both regulated with separate feedback loops and DVC support. Use Value: ±1% static accuracy and −40 °C to +105 °C operation prevent display flicker or color shift across cabin temperature extremes.	Use Scenario: Provides 1.1 V @ 10 A to cellular modem baseband processor and 3.3 V auxiliary rail in LTE/5G TCU with CAN FD interface. IC Role / Device Role / Timing Role: Primary buck converter for modem SoC; secondary buck powers PMIC companion IC and CAN transceiver bias. Use Value: AEC-Q100 Grade 2 qualification and integrated OCP/OTP ensure 15-year field reliability in harsh vibration/thermal cycling environments.

ADAS Camera Power Rail

In-Vehicle Infotainment SoC Core

Use Scenario: Powers image signal processor (ISP) and AI accelerator in front-facing stereo camera module requiring tight voltage tolerance and fast transient response.

IC Role / Device Role / Timing Role: Dual-rail buck regulator supplying 1.0 V @ 10 A (core) and 1.1 V @ 10 A (memory) with synchronized phase interleaving.

Use Value: 10 A/µs transient capability and remote sensing ensure <50 mV droop during frame capture bursts - prevents ISP reset or corrupted pixel data.

Use Scenario: Supplies quad-core application processor and LPDDR4X memory in head-unit navigation system with thermal constraints.

IC Role / Device Role / Timing Role: Independent dual-buck controller enabling DVC-driven voltage scaling during map rendering vs. voice assistant idle states.

Use Value: 3 MHz switching and integrated FETs reduce solution size by 35% vs. discrete controllers - fits within 12 mm × 12 mm PCB area budget.

Automotive Digital Cluster Display

Telematics Control Unit (TCU) Memory Rail

Use Scenario: Delivers stable 0.85 V @ 10 A to GPU rendering instrument cluster graphics with variable backlight intensity.

IC Role / Device Role / Timing Role: Buck A powers GPU core; Buck B supplies 1.8 V I/O rail - both regulated with separate feedback loops and DVC support.

Use Value: ±1% static accuracy and −40 °C to +105 °C operation prevent display flicker or color shift across cabin temperature extremes.

Use Scenario: Provides 1.1 V @ 10 A to cellular modem baseband processor and 3.3 V auxiliary rail in LTE/5G TCU with CAN FD interface.

IC Role / Device Role / Timing Role: Primary buck converter for modem SoC; secondary buck powers PMIC companion IC and CAN transceiver bias.

Use Value: AEC-Q100 Grade 2 qualification and integrated OCP/OTP ensure 15-year field reliability in harsh vibration/thermal cycling environments.

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
MPQ8633BGLE-10-Z (Monolithic Power Systems)	Single 10 A dual-phase buck (not dual-output); no remote sensing; 2.5–18 V input; QFN-24 package.	Suitable for single-rail applications only; lacks independent Buck B for DDR/memory separation.	Select when only one high-current rail is needed and board space permits larger QFN footprint.
TPS659424RHBR (Texas Instruments)	6-rail PMIC with 2 × 6 A bucks; supports I²C/PMBus; 64-pin VQFN; lower max current per rail (6 A vs. 10 A).	Broadens system integration (LDOs, sequencers) but sacrifices peak current density and automotive temp range (−40 °C to +105 °C not guaranteed).	Select when multi-rail consolidation and digital telemetry outweigh raw current capability and AEC-Q100 Grade 2 assurance.

Compared with MPQ8633BGLE-10-Z and TPS659424RHBR, DA9214-XXFS1-AT uniquely delivers two independent 10 A rails with remote sensing, 3 MHz switching, and full AEC-Q100 Grade 2 compliance - making it the only option for thermally constrained, dual-load ADAS processors requiring <1% regulation accuracy.

Availability

DA9214-XXFS1-AT is available at Aetrix Electronics and suitable for automotive ADAS camera modules, in-vehicle infotainment SoC power delivery, and digital instrument cluster displays requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for DA9214-XXFS1-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 devices, and automotive SoCs, with deep expertise in functional safety and ASIL-B/C system design.

The DA9214-XXFS1-AT belongs to Renesas' DA92xx auto-grade PMIC family, engineered specifically for high-current, low-voltage power delivery in safety-critical automotive domains including ADAS, digital cockpits, and telematics gateways.

FAQ

What is the maximum output current per rail supported by DA9214-XXFS1-AT?

DA9214-XXFS1-AT supports up to 10 A per output rail - Buck A (phases A1/A2) and Buck B (phases B1/B2) each deliver 10 A continuously. This is confirmed in the datasheet's device overview and Table 6 (IO_MAX = 5000 mA per phase, with two phases per buck). The 2 × 10 A architecture enables independent regulation for CPU cores and DDR memory without cross-load interference.

Does DA9214-XXFS1-AT support remote voltage sensing, and how is it implemented?

Yes, DA9214-XXFS1-AT implements remote sensing on both outputs: FBAP/FBAN for Buck A and FBBP/FBBN for Buck B. These differential sense inputs connect directly to the point-of-load (e.g., CPU VDD pin), rejecting PCB trace IR drop to maintain ±1% static voltage accuracy. The feature is explicitly enabled in the functional description section and validated in Figure 2 (system diagram) and Table 2 (pin descriptions).

What communication interfaces does DA9214-XXFS1-AT support, and are they pin-compatible across the DA92xx family?

DA9214-XXFS1-AT supports both 2-wire (I²C-compatible) and 4-wire (SPI-compatible) interfaces using shared pins (SDA/SCL and nCS/SO). All DA92xx-A variants (DA9213-A, DA9214-A, DA9215-A) use identical pin assignments and register maps for these interfaces, enabling firmware reuse across platforms. The I²C address is configurable via GPI, allowing multiple DA9214-XXFS1-AT units on one bus.

Is DA9214-XXFS1-AT qualified for automotive applications, and what is its AEC-Q100 grade?

Yes, DA9214-XXFS1-AT is AEC-Q100 qualified Grade 2, rated for operation from −40 °C to +105 °C ambient temperature. This qualification is stated in the Key Features list and reinforced in Section 3.2 (Recommended Operating Conditions, TA = −40 to +105 °C). It meets automotive reliability, ESD (2 kV HBM), and thermal derating requirements defined in the datasheet.

Can DA9214-XXFS1-AT generate output voltages above 1.57 V, and how is that achieved?

Yes, DA9214-XXFS1-AT can generate output voltages from 1.57 V up to 4.3 V using an external resistor divider connected between VOUT and FBAN, as described in Section 5.1.6 ("Variable VOUT above 1.57 V") and illustrated in Figure 17. The internal DAC reference remains fixed; the divider scales feedback to extend the regulation range while preserving remote sensing integrity.

DA9214-XXFS1-AT Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 66-VFBGA

Packaging:: Tray

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:: 10A, 10A

Frequency - Switching:: 3MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 66-VFBGA (5.75x3.55)

DA9214-XXFS1-AT FAQ

1.How can I place an order for DA9214-XXFS1-AT through Aetrix?

Please submit a Request for Quotation (RFQ) for DA9214-XXFS1-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 DA9214-XXFS1-AT reliable?

The price and inventory of DA9214-XXFS1-AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DA9214-XXFS1-AT is usually 5 days.

3.What payment methods are accepted for DA9214-XXFS1-AT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DA9214-XXFS1-AT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DA9214-XXFS1-AT?

DA9214-XXFS1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DA9214-XXFS1-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 DA9214-XXFS1-AT?

For technical support, including DA9214-XXFS1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DA9214-XXFS1-AT requirements.

6.How does Aetrix verify that DA9214-XXFS1-AT is sourced from the original manufacturer or authorized distributors?

All DA9214-XXFS1-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 DA9214-XXFS1-AT meets industry standards.

7.What is the process for return or replacement of DA9214-XXFS1-AT?

All DA9214-XXFS1-AT units undergo pre-shipment inspection (PSI). If there is an issue with DA9214-XXFS1-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 DA9214-XXFS1-AT part is unused and in its original packaging.

Return procedure for DA9214-XXFS1-AT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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