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Analog Devices Inc./Maxim Integrated MAX20410AFOC/VY+
- Part No.:
- MAX20410AFOC/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOC/VY+.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,156
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Product details
Overview
MAX20410AFOC/VY+ from Analog Devices is an automotive-grade, fully integrated synchronous buck converter delivering up to 10A output current with 3.0V–36V input range, 10μA quiescent current in skip mode, and dual-phase capability for 20A systems-designed for ADAS power rails and infotainment domain controllers.
For engineers reviewing the MAX20410AFOC/VY+ datasheet, MAX20410AFOC/VY+ pinout, MAX20410AFOC/VY+ application, or MAX20410AFOC/VY+ equivalent, key selection criteria include AEC-Q100 qualification, 2.1MHz/400kHz switching frequency options, ±1% output voltage accuracy (E-version), 99% dropout duty cycle, and FC2QFN-17 package thermal performance.
Technical Context
The MAX20410AFOC/VY+ implements average current-mode control with 34ns minimum on-time, enabling high step-down ratios without pulse-skipping instability. It integrates high-side (25mΩ typ) and low-side (12mΩ typ) MOSFETs, a 1.8V BIAS LDO, and PGOOD with windowed threshold (102.75%–107.25% rising, 101.75%–106.25% falling).
Dual-phase operation is supported via SYNCOUT-to-SYNC interconnection between controller and target ICs, enabling 180° out-of-phase switching and dynamic current sharing. Spread-spectrum modulation (±3% at 2.1MHz) is factory-enabled to reduce EMI peak emissions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 36V - supports cold-crank (3V) and load-dump (42V transient) conditions per ISO 7637-2. |
| Max Output Current | 10A - delivered continuously at TJ ≤ +125°C with proper PCB thermal design (θJB = 16.3°C/W). |
| Quiescent Current | 10μA in skip mode - enables always-on subsystems (e.g., ADAS camera wake-up logic) with minimal battery drain. |
| Switching Frequency | 2.1MHz or 400kHz - enables compact 1.0μH inductors and <10μF ceramic output capacitors; avoids AM band interference. |
| Output Voltage Accuracy | ±1% (MAX20410E variant) - ensures stable core voltage for automotive SoCs requiring tight regulation (e.g., 5.0V ±50mV). |
| Duty Cycle Max | 99% - maintains regulation down to VIN = VOUT + 0.3V, critical for 12V-to-5V conversion during engine cranking. |
| PGOOD Window | 102.75%–107.25% (rising), 101.75%–106.25% (falling) - provides robust fault detection margin against ripple and noise in noisy automotive environments. |
Pinout & Package
MAX20410AFOC/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad (pin 17). Symmetric SUP/PGND pin placement minimizes high-current loop area for superior EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable Input | High-voltage compatible (3V–42V); drives internal bias regulator; 0.9V typical threshold (E-version) enables precise UVLO programming. |
| 2 BST | Bootstrap Supply | Connects 0.1μF ceramic capacitor to LX; supplies gate drive for high-side FET; enables efficient 100% duty-cycle operation. |
| 3, 9 SUP | Power Input | Dual pins internally connected; bypass with 0.1μF + 4.7μF ceramics near IC; handles 36V continuous, 42V transients. |
| 4, 5, 7 PGND | Power Ground | Three dedicated low-impedance ground paths for high di/dt return currents; must be tied to thermal pad and solid plane. |
| 6 LX | Switch Node | Connects to buck inductor; high dv/dt node requiring minimized trace length and guard ring; supports 10A RMS current. |
| 8 GND | Analog Ground | Separate from PGND; connects to FB/VEA/PGOOD reference; joined to PGND at single point near thermal pad. |
| 10 BIAS | LDO Output | 1.8V regulated supply for internal circuitry; requires ≥2.2μF ceramic to GND; powers FB amplifier and error amp. |
| 11 FB | Feedback Input | Senses output via resistor divider; 0.8V reference; 100nA leakage enables high-resistance dividers for low-power monitoring. |
| 12 OUT | Output Sense | Used only when FB tied to BIAS (fixed-output mode); senses actual VOUT for accurate regulation independent of FB path. |
| 13 VEA | Error Amp Output | Exposed for dual-phase current sharing; connect VEA pins of controller/target ICs to enable dynamic load balancing. |
| 14 PGOOD | Power-Good Flag | Open-drain output; asserts low during soft-start and under-voltage/over-voltage; requires external pull-up to BIAS or VOUT. |
| 15 SYNC | Mode Control | Configures FPWM (high), skip mode (low), or external sync (AC signal); accepts 1.4V logic high, 0.4V logic low. |
| 16 SYNCOUT | Clock Output | 180° out-of-phase clock; used to daisy-chain second IC in dual-phase; open in single-phase configuration. |
| 17 Thermal Pad | Case Ground / Heat Sink | Internally connected to PGND; must be soldered to large copper pour for θJB = 16.3°C/W and thermal shutdown avoidance. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | AEC-Q100 Grade 1 (−40°C to +125°C ambient) - validated for under-hood and cockpit applications with full reliability testing. |
| Dual-Phase Scalability | Two MAX20410AFOC/VY+ ICs support 20A total with 180° phase shift and dynamic current sharing - eliminates need for discrete current-sharing circuitry. |
| Ultra-Low IQ Operation | 10μA quiescent current in skip mode - extends battery life in always-on vehicle modules without compromising startup time or regulation stability. |
| Robust Protection Suite | Cycle-by-cycle overcurrent, hiccup-mode short-circuit response (25ms off-time), thermal shutdown (175°C), and 42V load-dump tolerance - meets ISO 16750-2 requirements. |
| EMI-Optimized Architecture | Symmetric SUP/PGND pin layout + spread-spectrum (±3%) + 34ns min on-time - reduces radiated emissions by >10dB without shielding or ferrites. |
Applications
| ADAS Camera Power Rail | Infotainment Domain Controller |
|---|---|
|
Use Scenario: Powers image sensor, ISP, and MIPI interface in front-facing ADAS camera module operating across −40°C to +105°C ambient. IC Role / Device Role / Timing Role: Primary 5V/10A buck regulator with PGOOD monitoring and 99% dropout for cranking resilience. Use Value: Maintains clean 5V ±50mV under 12V battery sag to 6.5V; 10μA IQ prevents parasitic drain during vehicle sleep mode. |
Use Scenario: Supplies 3.3V/8A to application processor, DDR memory, and audio codec in head-unit infotainment system. IC Role / Device Role / Timing Role: High-efficiency DC-DC stage with 2.1MHz switching to minimize solution size and avoid AM band interference. Use Value: Achieves 94.3% efficiency at 12VIN/3.3VOUT/2.1MHz; small 1.0μH inductor and 22μF ceramic output cap fit within tight board space. |
| Automotive Gateway ECU | Electric Power Steering (EPS) MCU Supply |
|
Use Scenario: Generates isolated 5V rail for CAN FD transceivers and microcontroller in zonal gateway ECU with multiple communication interfaces. IC Role / Device Role / Timing Role: Dual-phase configured MAX20410AFOC/VY+ pair delivers 20A with 180° interleaving to reduce input/output ripple. Use Value: Cuts input capacitance requirement by 50% vs. single-phase; PGOOD window ensures reliable CAN bus startup sequencing. |
Use Scenario: Provides 5V/10A supply to safety-critical EPS MCU and motor driver logic under high-temperature under-hood conditions. IC Role / Device Role / Timing Role: AEC-Q100 qualified buck converter with thermal shutdown (175°C) and 42V load-dump protection. Use Value: Survives 120s at +125°C ambient; 95.6% efficiency at 12VIN/5VOUT/400kHz reduces thermal stress on EPS enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20410EAFOC/VY+ | Same pinout and function; improved EN threshold accuracy (0.9V ±75mV vs. 1.2V ±300mV), tighter PGOOD window, ±1% VOUT accuracy. | Required where precise enable sequencing or tighter output regulation is mandated (e.g., ASIL-B MCU power). | Select MAX20410EAFOC/VY+ for new designs needing enhanced accuracy; MAX20410AFOC/VY+ remains valid for cost-sensitive legacy upgrades. |
| LM61480QRNXTQ1 | 10A automotive buck (TI); 3.5V–36V input; 12μA IQ; no dual-phase support; 2.1MHz fixed; 1% VOUT accuracy; different pinout (16-pin WQFN). | Suitable for single-rail 10A applications but lacks dual-phase scalability and symmetric SUP/PGND layout for EMI-critical layouts. | Choose LM61480QRNXTQ1 only if dual-phase operation is unnecessary and PCB redesign for non-pin-compatible layout is acceptable. |
Compared with MAX20410AFOC/VY+, the MAX20410EAFOC/VY+ offers measurable improvements in enable threshold precision and output regulation fidelity without layout changes, while the LM61480QRNXTQ1 provides functional equivalence in single-phase use cases but requires board rework and sacrifices EMI optimization and scalability.
Availability
MAX20410AFOC/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment domain controllers, and electric power steering ECUs requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410AFOC/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 digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets with precision power, sensing, and connectivity solutions.
The MAX20410AFOC/VY+ belongs to Analog Devices' automotive power management portfolio, engineered specifically for demanding 12V/48V vehicle architectures requiring high-current, low-IQ, and AEC-Q100-compliant DC-DC conversion.
FAQ
What is the maximum continuous output current of the MAX20410AFOC/VY+?
The MAX20410AFOC/VY+ delivers up to 10A continuous output current under recommended operating conditions (TA ≤ +125°C, proper PCB thermal design with θJB ≤ 16.3°C/W). This rating assumes adequate copper area on the thermal pad and airflow; derating applies above +125°C ambient.
Does the MAX20410AFOC/VY+ support dual-phase operation out of the box?
Yes - the MAX20410AFOC/VY+ supports dual-phase operation natively via its SYNCOUT and VEA pins. One IC acts as controller (SYNCOUT driven), the other as target (SYNCOUT tied to BIAS); they automatically achieve 180° phase shift and dynamic current sharing without external controllers.
What is the purpose of the windowed PGOOD feature in the MAX20410AFOC/VY+?
The MAX20410AFOC/VY+ implements a windowed PGOOD with asymmetric thresholds: rising edge at 102.75%–107.25% and falling edge at 101.75%–106.25% of nominal VOUT. This hysteresis prevents false toggling due to ripple or noise, ensuring reliable power sequencing in automotive environments.
Can the MAX20410AFOC/VY+ operate during automotive cold-crank conditions?
Yes - the MAX20410AFOC/VY+ operates down to 3.0V input and supports 99% duty cycle, enabling regulation even when battery voltage drops to ~6.5V during engine cranking. Its 36V absolute max rating also withstands 42V load-dump transients per ISO 16750-2.
Is the MAX20410AFOC/VY+ pin-compatible with earlier MAX2040x devices?
No - the MAX20410AFOC/VY+ uses a 17-pin FC2QFN package, while MAX20404/MAX20405/MAX20406 are 15-pin FC2QFN. Though footprint-compatible (same 3.5mm × 3.75mm outline), the pin count and assignment differ; PCB layout revision is required for migration.
MAX20410AFOC/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:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 0.8V (5V)
- Voltage - Output (Max):
- 10V
- 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)
MAX20410AFOC/VY+ FAQ
1.How can I place an order for MAX20410AFOC/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOC/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 MAX20410AFOC/VY+ reliable?
The price and inventory of MAX20410AFOC/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410AFOC/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410AFOC/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOC/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOC/VY+?
MAX20410AFOC/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOC/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 MAX20410AFOC/VY+?
For technical support, including MAX20410AFOC/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOC/VY+ requirements.
6.How does Aetrix verify that MAX20410AFOC/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOC/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 MAX20410AFOC/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410AFOC/VY+?
All MAX20410AFOC/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOC/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 MAX20410AFOC/VY+ part is unused and in its original packaging.
Return procedure for MAX20410AFOC/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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