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Analog Devices Inc./Maxim Integrated MAX20410EAFOD/VY+
- Part No.:
- MAX20410EAFOD/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410EAFOD/VY+.pdf
- Description:
- IC REG BUCK 3.3V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX20410EAFOD/VY+ from Analog Devices is an automotive-grade, fully integrated synchronous buck converter with internal high-side and low-side MOSFETs, delivering up to 10A output current across 3.0V–36V input range, featuring ±1% output voltage accuracy, 10μA quiescent current in skip mode, and AEC-Q100 qualification for use in ADAS power rails.
For engineers reviewing the MAX20410EAFOD/VY+ datasheet, MAX20410EAFOD/VY+ pinout, MAX20410EAFOD/VY+ application, or MAX20410EAFOD/VY+ equivalent, this page provides verified technical context on dual-phase operation, windowed PGOOD, EN threshold accuracy (0.825V–0.975V), 2.1MHz/400kHz switching options, and FC2QFN thermal performance - all critical for automotive power system design.
Technical Context
The MAX20410EAFOD/VY+ implements average current-mode control with 34ns minimum on-time, enabling stable regulation across wide VIN/VOUT ratios (e.g., 12V→3.3V) without pulse-skipping artifacts. Its dual-phase capability supports 180° out-of-phase operation with dynamic current sharing when paired with a second IC as controller/target.
It integrates a 1.8V BIAS linear regulator with automatic switchover from input to output, symmetric SUP/PGND pin placement for EMI suppression, and spread-spectrum modulation to reduce radiated emissions. The windowed PGOOD (102.75%–107.25% rising / 101.75%–106.25% falling) enables precise output voltage monitoring in safety-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A maximum continuous - supports high-power ADAS ECUs and infotainment SoCs without external current boosting. |
| Input Voltage Range | 3.0V to 36V - accommodates cold-crank (3V), normal operation (12V/24V), and load-dump transients (42V tolerant). |
| Output Voltage Accuracy | ±1% over temperature - ensures stable core voltage for automotive microcontrollers and sensors under thermal stress. |
| Quiescent Current | 10μA in skip mode - extends battery life in always-on vehicle modules (e.g., telematics, gateway ECUs). |
| Switching Frequency | 2.1MHz or 400kHz fixed - enables compact 2.2μH inductors and low-ESR ceramic capacitors; avoids AM band interference. |
| PGOOD Window | Rising: 102.75%–107.25%, Falling: 101.75%–106.25% of VOUT - prevents false fault assertions during transient recovery and improves functional safety compliance. |
| EN Threshold Accuracy | 0.825V–0.975V (rising), 0.625V–0.775V (falling) - enables precise UVLO configuration for battery-backed systems with tight supply margins. |
Pinout & Package
MAX20410EAFOD/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad (package code F173A3FY+4), optimized for automotive PCB layouts requiring low θJB (16.3°C/W on 4-layer JEDEC board) and balanced current loops.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable Input | High-voltage-compatible (3V–36V) enable with accurate UVLO thresholds - allows direct connection to automotive battery or MCU GPIO. |
| 2 BST | Bootstrap Supply | Drives high-side gate via 0.1μF BST–LX capacitor - enables efficient 100% duty-cycle operation in dropout conditions. |
| 3, 9 SUP | IC Power Input | Dual-supply pins internally connected - bypassed with 0.1μF + 4.7μF ceramics for low-noise bias and robust transient response. |
| 4, 5, 7 PGND | Power Ground | Three dedicated PGND pins minimize ground bounce and improve EMI - must be tied together with low-inductance path to thermal pad. |
| 6 LX | Switch Node | Connects to buck inductor - high-impedance when disabled; requires tight layout to reduce ringing and EMI. |
| 8 GND | Analog Ground | Separate analog reference - connected to PGND at single point near thermal pad to avoid noise coupling into feedback loop. |
| 10 BIAS | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic to GND - auto-switches from input to output post-startup if VOUT > 2.5V. |
| 11 FB | Feedback Input | Programs adjustable output (0.8V–10V) via resistor divider; tied to BIAS for fixed outputs (3.3V/4V/5V). |
| 12 OUT | Output Sense | Used only with fixed-output configuration - senses actual VOUT for improved line/load regulation accuracy. |
| 13 VEA | Error Amplifier Output | Connected between controller and target in dual-phase mode - enables precise current sharing and phase alignment. |
| 14 PGOOD | Windowed Power-Good | Open-drain output asserting low outside 102.75%–107.25% (rising) / 101.75%–106.25% (falling) window - supports ISO 26262 ASIL-B diagnostics. |
| 15 SYNC | Synchronization Input | Selects FPWM (high), skip mode (low), or external clock sync - enables system-level timing coordination and EMI reduction. |
| 16 SYNCOUT | 180° Out-of-Phase Clock | Configures IC as target in dual-phase setup when tied to BIAS; connects to SYNC of controller IC for master-slave operation. |
| 17 - | Thermal Pad | Exposed copper pad (pin 17) - must be soldered to large PCB copper area for thermal dissipation and EMI shielding. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase scalability | Two MAX20410EAFOD/VY+ ICs support up to 20A with 180° phase shift and dynamic current sharing - eliminates need for discrete current-sharing circuits. |
| Windowed PGOOD | Asymmetric rising/falling thresholds (102.75%–107.25% / 101.75%–106.25%) prevent chatter during output recovery - meets diagnostic coverage requirements for ASIL-B systems. |
| Accurate EN threshold | 0.825V–0.975V enable threshold with 100mV hysteresis - enables reliable wake-up from ultra-low-power sleep states in battery-sensitive applications. |
| Spread-spectrum modulation | ±3% frequency dithering reduces peak EMI by >10dB - simplifies compliance with CISPR 25 Class 5 automotive EMC standards. |
| Thermally optimized FC2QFN | θJCb = 7.7°C/W and θJB = 16.3°C/W on 4-layer board - sustains 10A continuous output at +125°C ambient without derating. |
Applications
| ADAS Camera Power Supply | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers 5MP image sensor and ISP in forward-facing ADAS camera module operating from 12V battery with cold-crank and load-dump transients. IC Role / Device Role / Timing Role: Primary 3.3V/10A buck regulator with windowed PGOOD for functional safety monitoring and dual-phase option for future resolution upgrades. Use Value: ±1% output accuracy maintains sensor ADC reference stability; 10μA IQ extends parking-mode runtime; AEC-Q100 qualification ensures reliability over 15-year vehicle lifecycle. |
Use Scenario: Supplies 1.1V/8A core voltage to automotive-grade application processor in head-unit infotainment system with real-time OS and graphics acceleration. IC Role / Device Role / Timing Role: High-efficiency, low-noise buck converter using 2.1MHz switching to minimize inductor size and avoid AM band interference. Use Value: 34ns min-on-time enables 12V→1.1V conversion without pulse skipping; symmetric SUP/PGND layout reduces EMI coupling into sensitive video/audio signal paths. |
| Automotive Gateway ECU | Telematics Control Unit (TCU) |
Use Scenario: Provides 5V/6A auxiliary rail in Zonal E/E architecture gateway handling CAN FD, Ethernet, and LIN communication stacks. IC Role / Device Role / Timing Role: Fixed 5V output buck with PGOOD monitoring and EN-controlled wake-up from deep-sleep state. Use Value: Accurate EN threshold (0.825V–0.975V) enables precise brown-out detection; 99% dropout operation maintains 5V output during 6V cold-crank events. |
Use Scenario: Delivers 3.3V/4A power to cellular modem, GNSS receiver, and secure element in always-connected TCU with LTE/5G and OTA update capability. IC Role / Device Role / Timing Role: Dual-phase configured MAX20410EAFOD/VY+ pair providing 3.3V/8A with spread-spectrum EMI reduction for RF coexistence. Use Value: 400kHz switching optimizes efficiency at medium loads; thermal pad soldering enables conduction cooling in sealed TCU enclosure; AEC-Q100 supports 15-year field deployment. |
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+ | Non-E variant: ±1.5% VOUT accuracy, standard PGOOD (92%–95%), less accurate EN threshold (1.2V–0.5V), no windowed PGOOD. | Lacks ASIL-B diagnostic features; suitable for non-safety-critical industrial or consumer-grade automotive accessories. | Select MAX20410AFO/VY+ only when cost sensitivity outweighs functional safety requirements and tighter output regulation is not needed. |
| TPS546B24RVFT | Texas Instruments part: 12A rating, 4.5V–18V input, PMBus interface, lower IQ (2.5μA), but no AEC-Q100 qualification or windowed PGOOD. | Requires external PMBus host; lacks automotive qualification and integrated diagnostics - limited to non-automotive industrial or telecom use. | Choose TPS546B24RVFT for higher current or digital control needs in non-automotive designs; not a drop-in replacement for MAX20410EAFOD/VY+. |
Compared with MAX20410AFO/VY+, the MAX20410EAFOD/VY+ adds windowed PGOOD, ±1% accuracy, and EN threshold precision essential for ASIL-B systems; versus TPS546B24RVFT, it trades digital control for AEC-Q100 qualification, integrated diagnostics, and automotive thermal robustness - making it uniquely suited for safety-critical vehicle domains.
Availability
MAX20410EAFOD/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power supplies, and zonal gateway ECUs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MAX20410EAFOD/VY+ 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 power management semiconductors, serving automotive, industrial, communications, and healthcare markets with precision, reliability, and innovation.
The MAX20408/MAX20410 family was designed specifically for demanding automotive power systems - delivering high-current, low-IQ, AEC-Q100-qualified buck conversion in minimal footprint for ADAS, infotainment, and electrification applications.
FAQ
What is the maximum continuous output current supported by the MAX20410EAFOD/VY+?
The MAX20410EAFOD/VY+ delivers up to 10A continuous output current under recommended operating conditions (TA ≤ +125°C, proper PCB thermal design). This rating assumes use of the 17-pin FC2QFN package with adequate copper pour and thermal vias. Derating applies above +70°C ambient per θJA = 38.6°C/W. The device achieves this with integrated 25mΩ high-side and 12mΩ low-side MOSFETs.
Does the MAX20410EAFOD/VY+ support dual-phase operation, and how is it configured?
Yes, the MAX20410EAFOD/VY+ supports dual-phase operation for up to 20A total output. One IC is configured as controller (SYNCOUT left open, SYNC driven externally), the other as target (SYNCOUT tied to BIAS, SYNC connected to controller's SYNCOUT). VEA pins are connected between both ICs to enable dynamic current sharing and 180° phase alignment - no external controllers or timing ICs required.
What distinguishes the MAX20410EAFOD/VY+ from the non-E variant MAX20410AFO/VY+?
The MAX20410EAFOD/VY+ adds key automotive safety enhancements: ±1% output voltage accuracy (vs. ±1.5%), windowed PGOOD (102.75%–107.25% rising), and precise EN threshold (0.825V–0.975V rising). These features support ASIL-B diagnostics and tighter regulation in safety-critical ADAS and gateway applications where the base MAX20410AFO/VY+ falls short.
Can the MAX20410EAFOD/VY+ operate during automotive cold-crank conditions?
Yes, the MAX20410EAFOD/VY+ operates down to 3.0V input and supports 99% duty cycle in dropout mode - maintaining regulated output even during 6V cold-crank events. Its SUP pin tolerates up to +42V, and internal circuitry remains functional across the full -40°C to +125°C automotive temperature range, meeting AEC-Q100 Grade 1 requirements.
What is the purpose of the VEA pin on the MAX20410EAFOD/VY+?
The VEA (Voltage Error Amplifier) pin on the MAX20410EAFOD/VY+ carries the internal error amplifier output signal. In dual-phase configurations, VEA pins of controller and target ICs are connected to enforce identical reference voltages and enable precise dynamic current sharing. In single-phase operation, VEA must remain unconnected - floating - to avoid instability or regulation errors.
MAX20410EAFOD/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tray
- 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+ FAQ
1.How can I place an order for MAX20410EAFOD/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410EAFOD/VY+ 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+ reliable?
The price and inventory of MAX20410EAFOD/VY+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX20410EAFOD/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410EAFOD/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410EAFOD/VY+?
MAX20410EAFOD/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410EAFOD/VY+ 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+?
For technical support, including MAX20410EAFOD/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410EAFOD/VY+ requirements.
6.How does Aetrix verify that MAX20410EAFOD/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410EAFOD/VY+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX20410EAFOD/VY+?
All MAX20410EAFOD/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410EAFOD/VY+, 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+ part is unused and in its original packaging.
Return procedure for MAX20410EAFOD/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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