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Analog Devices Inc./Maxim Integrated MAX20410EAFOD/VY+T
- Part No.:
- MAX20410EAFOD/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410EAFOD/VY+T.pdf
- Description:
- IC REG BUCK 3.3V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,700
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Product details
Overview
MAX20410EAFOD/VY+T from Analog Devices is an automotive-grade, fully integrated 10A synchronous buck converter with internal high-side and low-side MOSFETs, 3.0V–36V input range, ±1% output voltage accuracy (at 5V), and 2.1MHz/400kHz selectable switching frequency. It delivers regulated power to ADAS domain controllers and infotainment SoCs under harsh automotive conditions including 42V load dump.
For engineers reviewing the MAX20410EAFOD/VY+T datasheet, MAX20410EAFOD/VY+T pinout, MAX20410EAFOD/VY+T application, or MAX20410EAFOD/VY+T equivalent, key selection criteria include its 10A continuous output, windowed PGOOD with 105% rising threshold, 0.9V EN threshold accuracy, dual-phase scalability to 20A, and AEC-Q100 qualification for automotive power rails.
Technical Context
The MAX20410EAFOD/VY+T implements average current-mode control with 34ns minimum on-time, enabling stable operation across wide VIN/VOUT ratios (e.g., 12V→3.3V). Its dual-phase capability uses SYNCOUT-to-SYNC interconnection with 180° phase shift and dynamic current sharing between controller and target ICs.
It integrates a 1.8V BIAS LDO, supports forced-PWM, skip-mode (10μA IQ), and external clock synchronization up to 2.6MHz. The windowed PGOOD (102.75%–107.25% VOUT rising/falling) and ±1% output accuracy are exclusive to the 'E' variant, distinguishing it from non-E counterparts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports high-power ADAS ECUs without external current boosting |
| Input Voltage Range | 3.0V to 36V - covers cold-crank (3V) to load-dump (42V clamped) in 12V/24V automotive systems |
| Switching Frequency | 2.1MHz or 400kHz - enables compact 0805/1206 inductors and avoids AM band interference |
| Output Voltage Accuracy | ±1% at 5V - ensures reliable SoC core rail regulation under temperature and line/load variation |
| Quiescent Current | 10μA in skip mode - extends battery life in always-on vehicle modules (e.g., telematics, gateway) |
| PGOOD Window | Rising: 102.75–107.25% VOUT; Falling: 101.75–106.25% VOUT - prevents false resets during transient load steps |
| EN Threshold Accuracy | 0.825V to 0.975V rising - enables precise programmable UVLO for system-level power sequencing |
Pinout & Package
MAX20410EAFOD/VY+T is housed in a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad. Symmetric SUP/PGND pin placement minimizes high-current loop area and improves EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable Input | High-voltage compatible enable with 0.9V typ threshold - directly driven by microcontroller GPIO or battery monitor |
| 2 (BST) | Bootstrap Supply | Connects 0.1μF ceramic capacitor to LX - sustains high-side gate drive during 100% duty cycle dropout operation |
| 3, 9 (SUP) | IC Power Input | Dual-supply pins internally connected - bypassed with 0.1μF + 4.7μF ceramics for low-impedance 36V input path |
| 4, 5, 7, 8 (PGND) | Power Ground | Four dedicated PGND pins - reduce ground bounce and improve thermal dissipation under 10A load |
| 6 (LX) | Switch Node | Connects to buck inductor - requires tight layout to minimize EMI; high-impedance when disabled |
| 10 (GND) | Analog Ground | Separate AGND pin - isolated from PGND at single-point connection to reduce noise coupling into feedback path |
| 11 (BIAS) | LDO Output | 1.8V internal bias rail - powers internal logic; requires ≥2.2μF ceramic to GND for stability |
| 12 (FB) | Feedback Input | Connects to resistor divider for adjustable output (0.8–10V) or to BIAS for fixed 3.3V/4V/5V |
| 13 (OUT) | Output Sense | Senses regulated output when FB tied to BIAS - improves load regulation accuracy via remote sensing |
| 14 (VEA) | Error Amplifier Output | Shared between controller/target in dual-phase - enables matched current sharing and fast transient response |
| 15 (PGOOD) | Power-Good Indicator | Open-drain output with windowed threshold - signals valid output only within ±5% of nominal, preventing premature system wake-up |
| 16 (SYNC) | Mode Control Input | Low = skip mode; High = FPWM; External clock = sync - configures operating mode without external logic |
| 17 (SYNCOUT) | Phase Clock Output | 180° out-of-phase clock - drives SYNC of second IC in dual-phase configuration for interleaved operation |
Key Features
| Feature | Design Value |
|---|---|
| Windowed PGOOD | 102.75–107.25% rising / 101.75–106.25% falling thresholds - eliminates false power-good assertions during output overshoot/undershoot |
| Dual-Phase Scalability | Two ICs deliver 20A with 180° phase shift and dynamic current sharing - reduces input/output ripple by >70% vs. single-phase |
| Accurate EN Threshold | 0.825V–0.975V rising UVLO - enables robust system-level brown-out detection and controlled power sequencing |
| Thermally Optimized FC2QFN | θJCb = 7.7°C/W (4-layer EV kit) - sustains 10A continuous output at +125°C ambient without derating |
| Spread-Spectrum EMI Reduction | ±3% frequency dithering - lowers peak radiated emissions by 10dB, easing CISPR 25 Class 5 compliance |
Applications
| ADAS Domain Controller Power | Infotainment Head Unit Core Rail |
|---|---|
Use Scenario: Powers NVIDIA Orin or Qualcomm SA8155P SoC in front-camera or radar ECU with 5V/10A requirement under 12V battery input. IC Role / Device Role / Timing Role: Primary 5V buck regulator delivering clean, sequenced power with windowed PGOOD confirmation before SoC boot. Use Value: ±1% output accuracy and 10μA skip-mode IQ ensure stable SoC operation and extended parking-mode runtime. | Use Scenario: Supplies 3.3V core rail to ARM-based infotainment MCU and display interface ICs in center-stack head unit. IC Role / Device Role / Timing Role: Fixed-output 3.3V buck converter with BIAS-sensed OUT pin for accurate load regulation across temperature. Use Value: Dual-phase option allows future upgrade to 6.6V/10A for next-gen displays without PCB redesign. |
| Automotive Gateway ECU | Telematics Control Unit (TCU) |
Use Scenario: Provides 4V intermediate rail for CAN FD transceivers and Ethernet PHYs in zonal gateway architecture. IC Role / Device Role / Timing Role: Adjustable 4V output buck with 400kHz switching to minimize conducted EMI on shared 12V bus. Use Value: 99% dropout duty cycle maintains regulation during cold-crank (5.5V battery), preventing gateway reset. | Use Scenario: Powers LTE/5G modem baseband processor requiring tightly regulated 1.8V bias rail derived from 5V intermediate supply. IC Role / Device Role / Timing Role: Secondary buck using BIAS LDO as input source - enables ultra-low-noise 1.8V generation. Use Value: Integrated 1.8V BIAS LDO eliminates need for external LDO, reducing BOM count and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20410AFO/VY+T | No windowed PGOOD; ±2% output accuracy; 1.2V EN threshold; no improved EN hysteresis | Lower cost for non-safety-critical 10A rails where PGOOD windowing and precision EN are not required | Select MAX20410AFO/VY+T only if system does not require AEC-Q100-compliant PGOOD timing margins or <1% output tolerance |
| TPS546B24RVFT | 6V max input; 12A output; PMBus interface; no spread spectrum; 1.2V min EN threshold | Requires external PMBus host; suited for datacenter-style telemetry but lacks automotive transient robustness | Choose TPS546B24RVFT only for non-automotive industrial applications needing digital control and higher current |
Compared with MAX20410AFO/VY+T and TPS546B24RVFT, the MAX20410EAFOD/VY+T uniquely combines AEC-Q100 qualification, windowed PGOOD, ±1% accuracy, and 36V input in a 3.5mm × 3.75mm FC2QFN - making it the only drop-in solution for safety-critical automotive 10A rails demanding guaranteed power-good timing and cold-crank resilience.
Availability
MAX20410EAFOD/VY+T is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, infotainment head units, and gateway ECUs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410EAFOD/VY+T 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX204xxE series is part of Analog Devices' automotive power management portfolio, designed specifically for high-current, high-reliability DC-DC conversion in ADAS, infotainment, and body electronics under AEC-Q100 Grade 1 conditions.
FAQ
What is the maximum continuous output current supported by the MAX20410EAFOD/VY+T?
The MAX20410EAFOD/VY+T supports 10A continuous output current at ambient temperatures up to +125°C when mounted on a 4-layer evaluation board with proper thermal layout. This rating assumes 12V input to 5V output at 400kHz switching frequency and accounts for the device's θJCb = 7.7°C/W thermal resistance. Derating applies above +70°C ambient per the 37mW/°C specification.
Does the MAX20410EAFOD/VY+T support dual-phase operation, and how is it configured?
Yes, the MAX20410EAFOD/VY+T supports dual-phase operation up to 20A. One IC is configured as controller (SYNCOUT left open), the other as target (SYNCOUT tied to BIAS). The controller's SYNCOUT connects to the target's SYNC pin, establishing 180° phase shift. VEA pins are connected externally to enable dynamic current sharing, and both ICs must use identical feedback networks for matched regulation.
What distinguishes the 'E' suffix in MAX20410EAFOD/VY+T from non-E variants like MAX20410AFO/VY+T?
The 'E' suffix denotes enhanced specifications: ±1% output voltage accuracy (vs. ±2%), windowed PGOOD (102.75–107.25% rising threshold), improved EN threshold accuracy (0.825–0.975V vs. 1.2V typ), and tighter EN hysteresis. These enhancements are validated across -40°C to +125°C and are critical for automotive functional safety compliance where precise power-rail monitoring is mandatory.
Can the MAX20410EAFOD/VY+T operate during automotive cold-crank conditions?
Yes, the MAX20410EAFOD/VY+T operates down to 3.0V input and supports 99% duty cycle dropout mode, enabling regulation during cold-crank events where battery voltage dips to 3.5V–5.5V. Its 36V absolute maximum SUP rating also withstands 42V load-dump transients when paired with appropriate input TVS protection, satisfying ISO 7637-2 Pulse 5a requirements.
What is the purpose of the OUT pin on the MAX20410EAFOD/VY+T, and when should it be used?
The OUT pin provides remote output voltage sensing when FB is tied to BIAS for fixed-output configurations. It compensates for IR drop across PCB traces and connectors, improving load regulation accuracy by closing the feedback loop at the point-of-load. Use OUT instead of FB for fixed outputs in high-current applications (>3A) where trace resistance exceeds 10mΩ.
MAX20410EAFOD/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10A
- Frequency - Switching:
- 400kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-FC2QFN (3.5x3.75)
MAX20410EAFOD/VY+T FAQ
1.How can I place an order for MAX20410EAFOD/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410EAFOD/VY+T 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 MAX20410EAFOD/VY+T reliable?
The price and inventory of MAX20410EAFOD/VY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410EAFOD/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20410EAFOD/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410EAFOD/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410EAFOD/VY+T?
MAX20410EAFOD/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410EAFOD/VY+T 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 MAX20410EAFOD/VY+T?
For technical support, including MAX20410EAFOD/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410EAFOD/VY+T requirements.
6.How does Aetrix verify that MAX20410EAFOD/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20410EAFOD/VY+T 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 MAX20410EAFOD/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20410EAFOD/VY+T?
All MAX20410EAFOD/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410EAFOD/VY+T, 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 MAX20410EAFOD/VY+T part is unused and in its original packaging.
Return procedure for MAX20410EAFOD/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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