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Analog Devices Inc./Maxim Integrated MAX20410EAFOC/VY+
- Part No.:
- MAX20410EAFOC/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410EAFOC/VY+.pdf
- Description:
- IC REG BUCK 5V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
MAX20410EAFOC/VY+ 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 (MAX20410E variant), and 2.1MHz/400kHz selectable switching frequency - enabling compact power designs for ADAS camera modules and infotainment head units.
For engineers reviewing the MAX20410EAFOC/VY+ datasheet, MAX20410EAFOC/VY+ pinout, MAX20410EAFOC/VY+ application, or MAX20410EAFOC/VY+ equivalent, key selection criteria include its AEC-Q100 qualification, 10μA quiescent current in skip mode, windowed PGOOD, dual-phase capability up to 20A, and FC2QFN-17 package with symmetric SUP/PGND layout for EMI robustness.
Technical Context
The MAX20410EAFOC/VY+ implements average current-mode control with 34ns minimum on-time, supporting wide VIN/VOUT step-down ratios without pulse-skipping instability. Its dual-phase architecture enables synchronized 180° out-of-phase operation with dynamic current sharing between controller and target ICs.
It integrates a 1.8V BIAS linear regulator, programmable EN threshold (0.825V–0.975V), spread-spectrum EMI reduction, and robust protection including overtemperature shutdown (175°C), hiccup-mode short-circuit response, and 42V load-dump tolerance - all validated across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports high-power ADAS radar and domain controller rails without external current boosting. |
| Input Voltage Range | 3.0V to 36V - accommodates cold-crank (3V) and load-dump (42V transient) conditions in automotive 12V/24V systems. |
| Switching Frequency | 2.1MHz or 400kHz fixed - enables use of sub-1μH inductors and <10μF ceramic output capacitors for space-constrained layouts. |
| Output Voltage Accuracy | ±1% over temperature - ensures stable core voltage for automotive SoCs and microcontrollers without post-regulation. |
| Quiescent Current | 10μA in skip mode - extends battery runtime during vehicle sleep modes (e.g., parking surveillance). |
| Duty Cycle Max | 99% - maintains regulation down to ~3.03V output at 36V input, critical for low-dropout operation in start-stop systems. |
| Thermal Rating | AEC-Q100 Grade 1 (–40°C to +125°C ambient) - qualified for under-hood and cockpit-mounted applications. |
Pinout & Package
MAX20410EAFOC/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad (pin 17 = GND). Symmetric SUP and 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 (3V–36V); 0.9V typical threshold enables direct connection to automotive microcontroller GPIOs. |
| 2 (BST) | Bootstrap Supply | Drives high-side gate; requires 0.1μF ceramic capacitor to LX for reliable 10A switching. |
| 3, 9 (SUP) | IC Power Input | Dual-supply pins internally connected; bypass with 0.1μF + 4.7μF ceramics near each pin for low-impedance path. |
| 4, 5, 7, 8 (PGND) | Power Ground | Four dedicated PGND pins reduce ground bounce and improve current sharing in dual-phase configurations. |
| 6 (LX) | Switch Node | Connects to buck inductor; high-impedance when disabled - prevents shoot-through during startup/shutdown. |
| 10 (GND) | Analog Ground | Separate from PGND; connects to PCB ground plane at single point to isolate noise-sensitive feedback paths. |
| 11 (BIAS) | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic capacitor to GND for stability and transient response. |
| 12 (FB) | Feedback Input | Accepts resistor divider for adjustable outputs (0.8V–10V) or ties to BIAS for fixed 3.3V/4V/5V options. |
| 13 (OUT) | Output Sense | Used only in fixed-output mode; senses actual VOUT for accurate regulation independent of FB path errors. |
| 14 (VEA) | Error Amplifier Output | Connected between controller/target in dual-phase mode to enable precise current balancing and phase synchronization. |
| 15 (PGOOD) | Windowed Power-Good | Open-drain output asserts low if VOUT falls outside 101.75%–107.25% (rising) or 101.75%–106.25% (falling) window. |
| 16 (SYNC) | Synchronization Input | Configures FPWM (high), skip mode (low), or external clock sync (AC signal); supports daisy-chained multi-phase timing. |
| 17 (SYNCOUT) | 180° Out-of-Phase Clock | Drives SYNC of target IC in dual-phase setup; left open in single-phase operation. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed PGOOD | Provides asymmetric rising/falling thresholds (102.75%–107.25% / 101.75%–106.25%) for robust rail monitoring in noisy automotive environments. |
| EN Threshold Accuracy | 0.825V–0.975V (±75mV) enables precise UVLO programming for battery-aware system sequencing. |
| Dual-Phase Scalability | Two MAX20410EAFOC/VY+ ICs deliver up to 20A with 180° phase shift and dynamic current sharing - no external current-sense resistors required. |
| Spread-Spectrum Modulation | ±3% frequency dithering reduces peak EMI emissions by >10dB, easing CISPR 25 Class 5 compliance. |
| Low-IQ Skip Mode | 10μA quiescent current preserves battery life during extended vehicle sleep states while maintaining fast wake-up response. |
| Thermally Optimized FC2QFN | θJCb = 7.7°C/W (4-layer EV kit) enables 10A operation at +85°C ambient without forced airflow or heatsinks. |
Applications
| ADAS Camera Module Power | Infotainment Head Unit Core Rail |
|---|---|
|
Use Scenario: Powers 5MP image sensor, ISP, and DDR memory in rear-view or surround-view cameras operating in –40°C to +105°C under-hood environments. IC Role / Device Role / Timing Role: Primary 3.3V/5V buck regulator delivering clean, low-noise power with windowed PGOOD for fault reporting to safety MCU. Use Value: 94.3% efficiency at 12VIN/5VOUT/2.1MHz reduces thermal load in sealed enclosures; 99% duty cycle sustains output during engine cranking. |
Use Scenario: Supplies 1.1V core voltage to ARM-based application processor and 3.3V I/O rail in automotive infotainment head units. IC Role / Device Role / Timing Role: High-current synchronous buck converter with dual-phase option to meet burst-load demands of multimedia processing. Use Value: 34ns minimum on-time supports 12V-to-1.1V conversion without pulse skipping; ±1% accuracy ensures SoC functional safety compliance. |
| Domain Controller Low-VIN Rail | Telematics Control Unit (TCU) Backup Power |
|
Use Scenario: Generates 5V auxiliary rail from 12V battery for CAN FD gateway, Ethernet switch, and sensor fusion MCU in zonal architectures. IC Role / Device Role / Timing Role: Automotive-qualified buck converter with 42V load-dump tolerance and AEC-Q100 Grade 1 rating. Use Value: Robust overvoltage protection eliminates need for external TVS; spread-spectrum EMI reduction simplifies EMC filter design. |
Use Scenario: Provides always-on 3.3V supply to TCU real-time clock and cellular modem during vehicle sleep (IGN-OFF). IC Role / Device Role / Timing Role: Ultra-low IQ buck regulator enabling >1-year battery backup without parasitic drain. Use Value: 10μA quiescent current in skip mode meets ISO 16750-2 sleep current requirements (<50μA total system). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20410AFOC/VY+ | Non-E variant: ±1.5% VOUT accuracy, standard PGOOD (92%–96%), higher EN threshold (1.2V), no windowed PGOOD. | Suitable for non-safety-critical industrial supplies where tighter accuracy and advanced monitoring are not required. | Select MAX20410AFOC/VY+ only if cost sensitivity outweighs need for AEC-Q100-compliant accuracy and rail monitoring. |
| TPS546B24RVFT | Texas Instruments part: 12A, 4.5V–18V input, PMBus interface, lower max VIN, no AEC-Q100 qualification. | Targeted at server/datacom DC-DC; lacks automotive transients support and extended temperature validation. | Choose TPS546B24RVFT only for non-automotive, digitally controlled 12V-input systems requiring telemetry and margining. |
Compared with MAX20410AFOC/VY+, the MAX20410EAFOC/VY+ delivers tighter output accuracy and windowed PGOOD essential for ASIL-B subsystems, while TPS546B24RVFT offers digital control but cannot replace it in automotive environments due to missing load-dump tolerance and AEC-Q100 validation.
Availability
MAX20410EAFOC/VY+ is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and domain controller designs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410EAFOC/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, and communications markets with precision, reliability, and safety-certified solutions.
The MAX204xx family was designed specifically for automotive power conversion - delivering high-current, low-EMI, AEC-Q100-qualified buck regulators that simplify compliance with ISO 26262 and CISPR 25 requirements in ADAS and cockpit systems.
FAQ
What is the maximum input voltage the MAX20410EAFOC/VY+ can withstand during load dump?
The MAX20410EAFOC/VY+ supports 42V load-dump transients per ISO 16750-2. Its absolute maximum SUP-to-PGND rating is +42V, and internal protection circuitry clamps and sustains operation without damage or latch-up - enabling direct connection to automotive 12V battery rails without external TVS diodes in most cases. This rating is verified across the full –40°C to +125°C temperature range.
Does the MAX20410EAFOC/VY+ require external compensation components?
No, the MAX20410EAFOC/VY+ uses internal compensation for its average current-mode control loop. The device is optimized for stability with standard 0.22μH–0.47μH shielded inductors and 10μF–47μF ceramic output capacitors. No external RC networks or type-II/type-III compensators are needed - reducing BOM count and layout complexity while ensuring robust transient response across temperature and load.
Can the MAX20410EAFOC/VY+ operate in forced-PWM mode at 2.1MHz with light loads?
Yes, driving the SYNC pin high configures the MAX20410EAFOC/VY+ into forced-PWM (FPWM) mode at the selected switching frequency (2.1MHz or 400kHz). In FPWM, the converter maintains constant frequency and avoids audible noise or output voltage jumps during light-load transitions - critical for powering noise-sensitive ADCs or RF receivers in automotive telematics modules.
How does the windowed PGOOD function differ on the MAX20410EAFOC/VY+ versus standard PGOOD?
The MAX20410EAFOC/VY+ implements windowed PGOOD with asymmetric thresholds: rising edge triggers at 102.75%–107.25% of nominal VOUT, and falling edge releases at 101.75%–106.25%. This hysteresis prevents chatter during marginal rail conditions and provides early warning of overvoltage faults - unlike standard PGOOD (e.g., on MAX20410AFOC/VY+) which asserts low only below 92%–96% of VOUT.
Is the MAX20410EAFOC/VY+ pin-compatible with earlier MAX2040x devices?
Yes, the MAX20410EAFOC/VY+ uses the same 17-pin FC2QFN package and pinout as MAX20408EAFO/MAX20410EAFO variants. It is also footprint-compatible with the 4A–6A MAX20404/MAX20405/MAX20406 family, enabling scalable power design across current classes without PCB redesign - provided thermal and layout guidelines (e.g., PGND copper area, BST capacitor placement) are followed.
MAX20410EAFOC/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):
- 5V
- 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)
MAX20410EAFOC/VY+ FAQ
1.How can I place an order for MAX20410EAFOC/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410EAFOC/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 MAX20410EAFOC/VY+ reliable?
The price and inventory of MAX20410EAFOC/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410EAFOC/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410EAFOC/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410EAFOC/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410EAFOC/VY+?
MAX20410EAFOC/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410EAFOC/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 MAX20410EAFOC/VY+?
For technical support, including MAX20410EAFOC/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410EAFOC/VY+ requirements.
6.How does Aetrix verify that MAX20410EAFOC/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410EAFOC/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 MAX20410EAFOC/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410EAFOC/VY+?
All MAX20410EAFOC/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410EAFOC/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 MAX20410EAFOC/VY+ part is unused and in its original packaging.
Return procedure for MAX20410EAFOC/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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