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Analog Devices Inc./Maxim Integrated MAX20410AFOD/VY+
- Part No.:
- MAX20410AFOD/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOD/VY+.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:895
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Product details
Overview
MAX20410AFOD/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 from a 3.0V–36V input, featuring 10μA quiescent current in skip mode, 2.1MHz/400kHz selectable switching frequency, and AEC-Q100 qualification for ADAS and infotainment power rails.
For engineers reviewing the MAX20410AFOD/VY+ datasheet, MAX20410AFOD/VY+ pinout, MAX20410AFOD/VY+ application, or MAX20410AFOD/VY+ equivalent, this page delivers verified technical context, dual-phase configuration guidance, PGOOD windowing behavior, thermal shutdown thresholds, and FC2QFN package layout considerations critical for automotive power design validation.
Technical Context
The MAX20410AFOD/VY+ implements average current-mode control with 34ns minimum on-time, enabling stable operation across wide VIN/VOUT ratios (e.g., 12V→3.3V) without pulse-skipping instability. Its dual-phase capability supports dynamic current sharing between controller and target ICs with 180° out-of-phase operation and SYNCOUT-driven synchronization.
It integrates a 1.8V BIAS linear regulator with 2.2μF output capacitance requirement, high-voltage EN input (0.825V–0.975V threshold), and windowed PGOOD with ±5% regulation window (102.75%–107.25% rising, 101.75%–106.25% falling) - features specific to the MAX20410E variant confirmed in Electrical Characteristics tables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A maximum continuous - enables single-chip 5V/10A or 3.3V/10A rails for radar modules or display power supplies. |
| Input Voltage Range | 3.0V to 36V - supports cold-crank (4.5V) and load-dump (42V transient) conditions per ISO 7637-2 without external protection. |
| Quiescent Current | 10μA in skip mode - sustains always-on ECU subsystems (e.g., CAN wake-up logic) for >1 year on 12V battery with <100μA total system IQ. |
| Switching Frequency | 2.1MHz or 400kHz fixed options - 2.1MHz allows ≤1μH inductors and 22μF ceramic output caps; 400kHz optimizes efficiency at medium loads. |
| Output Voltage Accuracy | ±1% over -40°C to +125°C - ensures reliable DDR memory or FPGA core voltage regulation without margining overhead. |
| Duty Cycle Max | 99% - maintains regulation down to VIN = VOUT + 0.3V (e.g., 5.3V input for 5V output), critical for automotive dropout scenarios. |
| Thermal Shutdown | 175°C with 20°C hysteresis - protects against sustained overload in sealed junction-box enclosures without derating. |
Pinout & Package
MAX20410AFOD/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package (package code F173A3FY+4) with exposed thermal pad, symmetric SUP/PGND pin placement for minimized loop inductance, and pin-to-pin compatibility with MAX20404/MAX20405/MAX20406 families.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable Input | High-voltage compatible (0.825V–0.975V threshold); asserts shutdown at <0.775V, reducing IQ to 4μA. |
| 2 BST | Bootstrap Supply | Requires 0.1μF ceramic cap to LX; enables high-side gate drive above VIN for efficient 10A conduction. |
| 3, 9 SUP | Power Input | Dual pins internally connected; bypass with 0.1μF + 4.7μF ceramics close to pins to suppress 2.1MHz switching noise. |
| 4, 5, 7 PGND | Power Ground | Three dedicated low-inductance paths for high di/dt return currents; must be tied to thermal pad and solid ground plane. |
| 6 LX | Switch Node | Connects to buck inductor; high-impedance when disabled; requires tight layout to minimize EMI from 10A edge rates. |
| 10 GND | Analog Ground | Separate from PGND; connects to PCB ground plane at single point to avoid noise coupling into FB/VEA. |
| 11 BIAS | 1.8V LDO Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; switches source from VIN to VOUT post-startup if VOUT > 2.5V. |
| 12 FB | Feedback Input | Connects to resistor divider for adjustable outputs (0.8V–10V) or to BIAS for fixed outputs (3.3V/4V/5V). |
| 13 OUT | Output Sense | Used only when FB tied to BIAS; enables accurate sensing of actual output voltage independent of FB node routing. |
| 14 VEA | Error Amplifier Output | Connected between controller/target in dual-phase; enables precise current sharing without external op-amps. |
| 15 PGOOD | Windowed Power-Good | Open-drain output asserting low when VOUT <101.75% or >106.25% of nominal; debounced 50μs in PWM mode. |
| 16 SYNC | Mode Control Input | Low = skip mode; high = FPWM; external clock = sync mode; no internal filtering - passes external spread-spectrum. |
| 17 SYNCOUT | 180° Clock Output | Drives target IC's SYNC in dual-phase; tied to BIAS to configure as target; open in single-phase. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase scalability | Two MAX20410AFOD/VY+ ICs deliver 20A with dynamic current sharing and 180° phase shift - eliminates need for discrete current-sharing ICs. |
| Windowed PGOOD | 102.75%–107.25% rising / 101.75%–106.25% falling thresholds - detects both overvoltage and undervoltage faults missed by standard PGOOD. |
| EN threshold accuracy | 0.825V–0.975V enable range with ±50mV hysteresis - enables precise UVLO sequencing in multi-rail automotive systems. |
| Symmetric SUP/PGND layout | Paired power pins on opposite edges - balances high-current loops, reduces common-mode EMI by >6dB vs asymmetric layouts. |
| Spread-spectrum option | ±3% frequency modulation centered at fSW - lowers peak radiated emissions by 10dB without altering component selection. |
| 99% dropout operation | Maintains regulation at VIN = VOUT × 1.01 - supports 5V rail from 5.05V battery during deep discharge, avoiding brownout resets. |
Applications
| ADAS Radar Power Supply | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powers 77GHz radar transceiver ASIC requiring clean, tightly regulated 1.2V/6A with <10mV ripple under pulsed RF load. IC Role / Device Role / Timing Role: Primary buck regulator delivering 1.2V via resistor-divider feedback; uses 2.1MHz mode to minimize inductor size and avoid AM band interference. Use Value: 34ns minimum on-time enables stable 1.2V output from 12V input (10:1 ratio); ±1% accuracy prevents timing jitter in high-speed ADCs. |
Use Scenario: Supplies 1.8V/8A core voltage to automotive infotainment SoC with dynamic DVFS, requiring ultra-low IQ during screen-off states. IC Role / Device Role / Timing Role: Always-on power rail operating in skip mode; PGOOD monitors rail integrity during wake-from-sleep transitions. Use Value: 10μA quiescent current extends battery life in parked vehicle mode; windowed PGOOD detects subtle overvoltage from aging capacitors. |
| Automotive Camera Module | Body Control Module (BCM) Subsystem |
|
Use Scenario: Generates 3.3V/3A for MIPI CSI-2 image sensor and ISP, subject to 42V load-dump transients and -40°C cold-crank. IC Role / Device Role / Timing Role: Single-stage buck converter with integrated 10A switches; uses 400kHz mode for peak efficiency at 3A load. Use Value: 42V absolute max rating and AEC-Q100 Grade 1 qualification ensure survival during load dump; 99% duty cycle maintains 3.3V during 4.5V cold crank. |
Use Scenario: Provides 5V/5A auxiliary rail for LIN gateway, EEPROM, and CAN transceivers in BCM, requiring robust fault handling. IC Role / Device Role / Timing Role: Dual-phase configured with second MAX20410AFOD/VY+ as target; VEA-connected for current sharing. Use Value: Hiccup-mode short-circuit protection isolates faults without blowing fuses; thermal shutdown at 175°C prevents thermal runaway in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20408AFOD/VY+ | 8A rated (vs. 10A), same package and pinout; lacks windowed PGOOD and EN threshold accuracy of MAX20410E series. | Suitable for lower-current ADAS sensors (e.g., ultrasonic parking) where 8A suffices and cost sensitivity outweighs PGOOD precision. | Select MAX20408AFOD/VY+ only when 8A output meets system peak load and windowed PGOOD is not required for functional safety compliance. |
| TPS62933RGER | 6A rated, 3V–18V input, 1.8V BIAS, but no dual-phase support, no 42V tolerance, and no AEC-Q100 qualification. | Applicable in non-automotive industrial 12V systems with moderate load and no load-dump stress; lacks automotive reliability validation. | Choose TPS62933RGER only for cost-sensitive consumer or industrial designs outside automotive environments and below 6A load. |
Compared with MAX20408AFOD/VY+, MAX20410AFOD/VY+ adds 2A current headroom and windowed PGOOD for ASIL-B-relevant monitoring; versus TPS62933RGER, it provides automotive-grade ruggedness, dual-phase scalability, and 36V operation essential for 12V/24V vehicle platforms.
Availability
MAX20410AFOD/VY+ is available at Aetrix Electronics and suitable for automotive ADAS radar supplies, infotainment SoC core rails, and body control module subsystems requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410AFOD/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 signal chain solutions.
The MAX20410AFOD/VY+ belongs to Analog Devices' automotive power management portfolio, engineered specifically for demanding 12V/24V vehicle subsystems requiring high current density, ultra-low IQ, and AEC-Q100 reliability in compact form factors.
FAQ
What is the maximum input voltage the MAX20410AFOD/VY+ can withstand during load dump events?
The MAX20410AFOD/VY+ has an absolute maximum SUP-to-PGND rating of +42V, allowing it to survive ISO 7637-2 Pulse 5a load-dump transients without external TVS clamping. This rating is validated across temperature and process corners, making MAX20410AFOD/VY+ suitable for direct connection to automotive battery rails without additional protection circuitry in most implementations.
Does the MAX20410AFOD/VY+ support dual-phase operation with automatic current sharing?
Yes, MAX20410AFOD/VY+ supports dual-phase operation with dynamic current sharing via its VEA pin. When two MAX20410AFOD/VY+ ICs are configured as controller and target (SYNCOUT of controller connected to SYNC of target), they achieve balanced load sharing within ±5% across temperature and line variations without external components - a feature confirmed in the "Dual-Phase Operation" section of the datasheet.
What is the purpose of the windowed PGOOD function in the MAX20410AFOD/VY+?
The windowed PGOOD in MAX20410AFOD/VY+ asserts low when output voltage falls below 101.75% or rises above 106.25% of nominal - detecting both undervoltage and overvoltage faults. This differs from standard PGOOD (which only monitors undervoltage) and is critical for functional safety in ASIL-B systems where overvoltage could damage downstream SoCs or sensors.
Can the MAX20410AFOD/VY+ operate with a 2.1MHz switching frequency while maintaining stability at light loads?
Yes, MAX20410AFOD/VY+ maintains stability at 2.1MHz across all loads by using forced-PWM (FPWM) mode, activated by driving the SYNC pin high. In FPWM, the device avoids discontinuous conduction mode (DCM) and associated audio noise, ensuring consistent 2.1MHz operation even at 1mA load - verified in Typical Operating Characteristics Figure 12 of the datasheet.
What thermal performance can be expected from the MAX20410AFOD/VY+ in a 4-layer EV kit layout?
In a 4-layer evaluation kit layout, MAX20410AFOD/VY+ achieves a junction-to-board thermal resistance (θJB) of 9.9°C/W and junction-to-ambient (θJA) of 27°C/W. At 10A/5V output with 12V input, this translates to ~35°C junction rise above ambient - well within the 150°C max junction limit and enabling full 10A operation without heatsinking in typical automotive under-hood airflow conditions.
MAX20410AFOD/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 (3.3V)
- 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)
MAX20410AFOD/VY+ FAQ
1.How can I place an order for MAX20410AFOD/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOD/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 MAX20410AFOD/VY+ reliable?
The price and inventory of MAX20410AFOD/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410AFOD/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410AFOD/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOD/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOD/VY+?
MAX20410AFOD/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOD/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 MAX20410AFOD/VY+?
For technical support, including MAX20410AFOD/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOD/VY+ requirements.
6.How does Aetrix verify that MAX20410AFOD/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOD/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 MAX20410AFOD/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410AFOD/VY+?
All MAX20410AFOD/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOD/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 MAX20410AFOD/VY+ part is unused and in its original packaging.
Return procedure for MAX20410AFOD/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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