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Analog Devices Inc./Maxim Integrated MAX20410AFOB/VY+
- Part No.:
- MAX20410AFOB/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOB/VY+.pdf
- Description:
- IC REG BCK PRG/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:601
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Product details
Overview
MAX20410AFOB/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. It features 2.1MHz/400kHz selectable switching frequency, ±1% output voltage accuracy (E-version), and AEC-Q100 qualification for ADAS and infotainment power rails.
For engineers reviewing the MAX20410AFOB/VY+ datasheet, MAX20410AFOB/VY+ pinout, MAX20410AFOB/VY+ application, or MAX20410AFOB/VY+ equivalent, key selection criteria include its 17-pin FC2QFN package, 99% dropout operation, windowed PGOOD, programmable EN threshold, and dual-phase synchronization via SYNC/SYNCOUT - all critical for automotive power system design and EMI-sensitive layouts.
Technical Context
The MAX20410AFOB/VY+ implements average current-mode control with 34ns minimum on-time, enabling high step-down ratios without pulse-skipping instability. Its dual-phase architecture supports dynamic current sharing and 180° out-of-phase operation between controller and target ICs, reducing input/output ripple and thermal stress.
It integrates high-side (25mΩ typ) and low-side (12mΩ typ) MOSFETs, a 1.8V BIAS LDO, and a robust protection suite including cycle-by-cycle current limiting, hiccup-mode short-circuit response, thermal shutdown at 175°C, 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 max continuous - enables single-chip 5V/10A or 3.3V/10A rails for radar modules or domain controllers. |
| Input Voltage Range | 3.0V to 36V - supports cold-crank (3V) and load-dump (42V transient) conditions per ISO 7637-2. |
| Quiescent Current | 10μA in skip mode - extends battery runtime in always-on automotive subsystems (e.g., telematics wake-up). |
| Switching Frequency | 2.1MHz or 400kHz fixed - allows compact 0805/1206 inductors and avoids AM band interference. |
| Output Accuracy | ±1% over temp/load - ensures stable ADC reference or FPGA core voltage compliance in ADAS ECUs. |
| Duty Cycle Max | 99% - maintains regulation during deep dropout (e.g., 5V out from 5.05V input), critical for engine start scenarios. |
| PGOOD Window | 102.75%–107.25% (rising), 101.75%–106.25% (falling) - provides precise fault detection for safety-critical outputs. |
| Thermal Rating | AEC-Q100 Grade 0 (–40°C to +125°C ambient), 150°C junction - qualified for under-hood placement. |
Pinout & Package
MAX20410AFOB/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with symmetric SUP/PGND pin placement to minimize high-current loop area and improve EMI performance. The exposed thermal pad (pin 17) must be soldered to PCB ground for optimal θJB = 9.9°C/W (EV kit).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable Input | High-voltage compatible (3V–36V); 0.9V typical threshold (E-version) enables precise UVLO programming. |
| 2 BST | Bootstrap Supply | Connects 0.1μF ceramic capacitor to LX; sustains high-side gate drive during 100% duty cycle operation. |
| 3, 9 SUP | Power Input & HS Switch Supply | Dual pins internally connected; bypass with 0.1μF + 4.7μF ceramics close to pins to suppress high di/dt noise. |
| 4, 5, 7 PGND | Power Ground | Three dedicated low-impedance paths for return current; must be tied together and connected to thermal pad. |
| 6 LX | Switch Node | Connects to buck inductor; 34ns min on-time supports 12V→1.8V conversion at 2.1MHz without skipping. |
| 10 GND | Analog Ground | Separate from PGND; connects to PCB ground plane at single-point star node to isolate noise-sensitive feedback. |
| 11 BIAS | LDO Output | 1.8V internal rail; powers internal circuitry and serves as reference for FB/OUT; requires ≥2.2μF ceramic to GND. |
| 12 FB | Feedback Input | Connects to resistor divider for adjustable output (0.8V–10V); 100nA leakage enables high-resistor-divider designs. |
| 13 OUT | Output Sense | Used only when FB tied to BIAS for fixed-output mode; enables accurate sensing independent of FB path. |
| 14 VEA | Error Amplifier Output | Connected between controller/target in dual-phase; enables matched current sharing and transient response alignment. |
| 15 PGOOD | Open-Drain Power-Good | Windowed logic output (102.75%–107.25%) - asserts low during soft-start or OVP/UVP; requires pull-up to BIAS or VOUT. |
| 16 SYNC | Synchronization Input | Selects FPWM (high), skip mode (low), or external clock sync; accepts 360kHz–2.6MHz signals with 1.4V/0.4V thresholds. |
| 17 SYNCOUT | 180° Out-of-Phase Clock | Drives target IC's SYNC in dual-phase; configured by tying to BIAS on target device; disabled in single-phase. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase scalability | Two MAX20410AFOB/VY+ ICs deliver 20A with dynamic current sharing and 180° phase shift - cuts input ripple by >90% vs. single-phase. |
| Ultra-low IQ operation | 10μA quiescent current in skip mode - reduces standby power loss to <36μW at 3.6V supply, critical for parking-mode systems. |
| Automotive robustness | 42V load-dump tolerance, -40°C to +125°C operation, and AEC-Q100 Grade 0 qualification - meets ISO 16750-2 requirements. |
| EMI-optimized layout | Symmetric SUP/PGND pinout + spread-spectrum option (±3% freq dither) - lowers peak radiated emissions by 10dB in 30–1000MHz band. |
| Precision enable control | EN threshold accuracy of ±50mV (0.9V typ) - enables reliable sequencing with battery monitoring ICs or microcontroller GPIOs. |
| Fast transient response | Average current-mode control with 34ns min on-time - maintains regulation during 5A/μs load steps without output droop. |
Applications
| ADAS Radar Module Power | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Supplies 1.8V/6A core voltage to 7nm automotive SoC in forward collision warning system. IC Role / Device Role / Timing Role: Primary buck regulator with 2.1MHz switching, synchronized to SoC clock to avoid beat frequencies. Use Value: 94.3% efficiency at 12VIN/1.8VOUT minimizes thermal load in sealed radar housing; 34ns min on-time prevents dropout during burst-mode processing. |
Use Scenario: Powers 5V/8A I/O and memory interface for head-unit display processor. IC Role / Device Role / Timing Role: High-current buck stage with fixed 5V output and windowed PGOOD for ASIL-B functional safety monitoring. Use Value: ±1% output accuracy ensures DDR4/LPDDR4 timing margin compliance; 10μA skip-mode IQ extends battery backup time during ignition-off. |
| Domain Controller Auxiliary Rail | Telematics LTE Modem Supply |
Use Scenario: Generates 3.3V/10A auxiliary rail for CAN FD gateway and sensor fusion MCU in zonal architecture. IC Role / Device Role / Timing Role: Dual-phase configuration using two MAX20410AFOB/VY+ ICs for 20A total with shared current sense. Use Value: 180° phase shift reduces input capacitor RMS current by 70%, allowing smaller 1210-case MLCCs and lower board cost. |
Use Scenario: Provides 3.9V/4A supply to LTE-A modem in vehicle-to-cloud communication module. IC Role / Device Role / Timing Role: Single-phase buck with 400kHz switching and spread-spectrum enabled to pass CISPR 25 Class 5 radiated emissions. Use Value: 95.6% efficiency at 12VIN/3.9VOUT limits self-heating in compact enclosure; 99% duty cycle maintains regulation during cold-crank (5.5V battery). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20408AFOB/VY+ | 8A rated, identical pinout and feature set except lower ILIM (10–12A vs. 11.9–16A) and no windowed PGOOD. | Preferred for space-constrained 8A designs where full 10A headroom is unnecessary; lower cost in volume. | Select MAX20408AFOB/VY+ when 8A output suffices and BOM cost optimization is prioritized over extended current margin. |
| TPS62933RGER | 10A, 3V–36V, but only 400kHz/2.2MHz options, no spread-spectrum, and no dual-phase support; QFN-16 package. | Targeted at industrial non-automotive use; lacks AEC-Q100, load-dump rating, and windowed PGOOD for functional safety. | Choose TPS62933RGER only for non-automotive applications requiring TI ecosystem compatibility or different thermal profile. |
Compared with MAX20408AFOB/VY+, the MAX20410AFOB/VY+ offers higher current capability and windowed PGOOD for safety-critical monitoring, while TPS62933RGER provides TI-specific support but omits automotive qualifications and dual-phase scalability - making MAX20410AFOB/VY+ the sole choice for AEC-Q100-compliant 10A+ domain controller rails.
Availability
MAX20410AFOB/VY+ is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and domain controller power supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for MAX20410AFOB/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 MAX20410AFOB/VY+ belongs to Analog Devices' automotive power management portfolio, designed specifically for high-reliability, high-current DC-DC conversion in ADAS, infotainment, and zonal E/E architectures under harsh environmental conditions.
FAQ
What is the maximum output current rating of the MAX20410AFOB/VY+?
The MAX20410AFOB/VY+ is rated for up to 10A continuous output current under recommended operating conditions (TA ≤ +125°C, proper PCB thermal design). This rating is validated with the 17-pin FC2QFN package and 4-layer EV kit layout achieving θJA = 27°C/W. Derating applies above +70°C ambient per the 37mW/°C specification.
Does the MAX20410AFOB/VY+ support dual-phase operation, and how is it configured?
Yes, the MAX20410AFOB/VY+ supports dual-phase operation for up to 20A total output. One IC is configured as controller (SYNCOUT left open), the other as target (SYNCOUT tied to BIAS). VEA pins are connected between devices, and SYNC of the target is driven by SYNCOUT of the controller to enforce 180° phase shift and dynamic current sharing.
What is the purpose of the windowed PGOOD feature in the MAX20410AFOB/VY+?
The windowed PGOOD in the MAX20410AFOB/VY+ provides overvoltage and undervoltage detection with asymmetric thresholds: rising edge triggers at 102.75%–107.25% of nominal VOUT, falling edge at 101.75%–106.25%. This enables precise fault detection for functional safety applications such as ASIL-B power monitoring in ADAS ECUs.
Can the MAX20410AFOB/VY+ operate during automotive cold-crank conditions?
Yes, the MAX20410AFOB/VY+ operates down to 3.0V input and supports 99% duty cycle in dropout mode, enabling regulation during cold-crank events (e.g., 5.05V input sustaining 5V output). Its EN input is high-voltage compatible and remains functional across the full 3V–36V range, ensuring reliable startup even at battery voltages below 6V.
What thermal performance can be expected from the MAX20410AFOB/VY+ in a standard 4-layer PCB layout?
In a 4-layer JEDEC-standard board, the MAX20410AFOB/VY+ achieves θJA = 38.6°C/W and θJB = 16.3°C/W. On a 4-layer evaluation kit with optimized copper pour and thermal vias under the exposed pad, θJA improves to 27°C/W and θJB to 9.9°C/W - enabling 10A operation at +70°C ambient with <15°C junction rise above ambient.
MAX20410AFOB/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:
- Programmable (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)
MAX20410AFOB/VY+ FAQ
1.How can I place an order for MAX20410AFOB/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOB/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 MAX20410AFOB/VY+ reliable?
The price and inventory of MAX20410AFOB/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410AFOB/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410AFOB/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOB/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOB/VY+?
MAX20410AFOB/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOB/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 MAX20410AFOB/VY+?
For technical support, including MAX20410AFOB/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOB/VY+ requirements.
6.How does Aetrix verify that MAX20410AFOB/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOB/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 MAX20410AFOB/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410AFOB/VY+?
All MAX20410AFOB/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOB/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 MAX20410AFOB/VY+ part is unused and in its original packaging.
Return procedure for MAX20410AFOB/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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