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Analog Devices Inc./Maxim Integrated MAX20410AFOF/VY+
- Part No.:
- MAX20410AFOF/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOF/VY+.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
MAX20410AFOF/VY+ from Analog Devices is an automotive-grade, fully integrated 36V synchronous buck converter delivering up to 10A output current with 10μA quiescent current in skip mode. It features dual-phase capability (up to 20A), 2.1MHz/400kHz selectable switching frequency, and AEC-Q100 qualification for use in ADAS power rails and infotainment domain controllers.
For engineers reviewing the MAX20410AFOF/VY+ datasheet, MAX20410AFOF/VY+ pinout, MAX20410AFOF/VY+ application, or MAX20410AFOF/VY+ equivalent, key selection criteria include its 99% dropout duty cycle, ±1% output voltage accuracy (E-version), windowed PGOOD, and FC2QFN-17 package with symmetric SUP/PGND layout for EMI-sensitive automotive designs.
Technical Context
The MAX20410AFOF/VY+ implements average current-mode control with 34ns minimum on-time, enabling high step-down ratios (e.g., 24V→3.3V) without pulse-skipping instability. Its dual-phase architecture supports dynamic current sharing and 180° out-of-phase operation between controller and target ICs via SYNC/SYNCOUT signaling.
It integrates high-side (25mΩ typ) and low-side (12mΩ typ) MOSFETs, a 1.8V BIAS LDO, and programmable EN threshold (0.825–0.975V). The device supports forced-PWM, skip-mode, and external clock synchronization - with spread-spectrum modulation (±3%) factory-enabled to reduce radiated EMI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 36V - supports cold-crank (4.5V) and load-dump (42V transient) conditions per ISO 7637-2. |
| Max Output Current | 10A - verified continuous output at 12VIN/5VOUT/400kHz with 95.6% peak efficiency. |
| Quiescent Current | 10μA in skip mode - enables always-on systems (e.g., telematics wake-up) with minimal battery drain. |
| Switching Frequency | 2.1MHz or 400kHz - enables compact 0603/0805 inductors and avoids AM band interference. |
| Output Voltage Accuracy | ±1% (MAX20410E variant) - ensures stable core voltage for SoCs and microcontrollers under thermal/voltage stress. |
| Duty Cycle Max | 99% - maintains regulation down to 3.0V input at 5V output (dropout = 50mV), critical for automotive brownout resilience. |
| Thermal Rating | -40°C to +125°C ambient - qualified per AEC-Q100 Grade 1; junction limited to +150°C with 27°C/W θJA on EV kit. |
Pinout & Package
MAX20410AFOF/VY+ uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package (package code F173A3FY+4) with exposed thermal pad. Symmetric SUP and 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); 0.9V typical threshold enables direct connection to automotive microcontroller GPIO. |
| 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-supply pins internally tied; bypass with 0.1μF + 4.7μF ceramics close to pins for transient immunity. |
| 4, 5, 7, 8, PGND | Power Ground | Five dedicated PGND pins minimize ground bounce and improve thermal conduction to PCB copper pour. |
| 6, LX | Switch Node | Connects to buck inductor; low parasitic inductance path critical for 2.1MHz operation and EMI reduction. |
| 10, GND | Analog Ground | Separate from PGND; connects to system AGND plane at single point to avoid noise coupling into feedback path. |
| 11, BIAS | LDO Output | 1.8V internal regulator; powers internal circuitry and serves as reference for FB/OUT pins in fixed-output configurations. |
| 12, FB | Feedback Input | Accepts resistor divider (0.8V–10V range) or ties to BIAS for fixed outputs; 100nA leakage preserves accuracy. |
| 13, OUT | Output Sense | Used only when FB tied to BIAS; enables remote sensing for improved load regulation in high-current traces. |
| 14, VEA | Error Amplifier Output | Connected between controller/target in dual-phase mode for precise current sharing; open in single-phase. |
| 15, PGOOD | Open-Drain Power-Good | Windowed indicator (101.75–106.25% rising/falling thresholds for E-version); asserts low during soft-start. |
| 16, SYNC | Synchronization Input | Configures FPWM (high), skip mode (low), or external clock sync; accepts 1.7–2.6MHz (2.1MHz mode) or 360–600kHz (400kHz mode). |
| 17, SYNCOUT | 180° Out-of-Phase Clock | Drives target IC's SYNC in dual-phase; tied to BIAS to configure as target; open in single-phase operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase scalability | Two MAX20410AFOF/VY+ ICs support 20A total with dynamic current sharing and 180° phase shift - eliminates need for external current-sharing ICs. |
| Ultra-low IQ operation | 10μA quiescent current in skip mode extends battery life in always-on vehicle modules without compromising startup time. |
| Automotive robustness | Supports 42V load dump, -40°C to +125°C operation, AEC-Q100 Grade 1, and hiccup-mode short-circuit protection with 25ms fault recovery. |
| EMI-optimized layout | Symmetric SUP/PGND pinout and FC2QFN thermal pad reduce high-di/dt loop area - measured radiated emissions meet CISPR 25 Class 5. |
| Flexible voltage programming | Fixed 3.3V/4V/5V or adjustable 0.8V–10V output (2.1MHz) / 0.8V–6V (400kHz) - simplifies design across multiple rail requirements. |
Applications
| ADAS Camera Power Supply | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powers 5MP image sensor and ISP in forward-facing ADAS camera module requiring clean, low-noise 1.8V/3.3V rails. IC Role / Device Role / Timing Role: Primary buck regulator delivering 3.3V @ 3A with 2.1MHz switching to minimize inductor size and avoid AM band interference. Use Value: 10μA IQ enables always-on wake-on-motion functionality; ±1% output accuracy ensures sensor ADC reference stability over temperature. |
Use Scenario: Supplies 1.1V core voltage to automotive-grade application processor (e.g., NXP S32G) in head-unit infotainment system. IC Role / Device Role / Timing Role: High-efficiency, low-ripple buck converter operating in forced-PWM mode to prevent audio band noise coupling into analog audio subsystems. Use Value: 94.3% efficiency at 12VIN/1.1VOUT/2.1MHz reduces thermal load; 34ns min on-time supports 1.1V output from 12V input without instability. |
| Domain Controller Auxiliary Rail | Telematics LTE Modem Power |
|
Use Scenario: Generates isolated 5V auxiliary rail for CAN FD transceivers and Ethernet PHYs in zonal domain controller. IC Role / Device Role / Timing Role: Dual-phase configured MAX20410AFOF/VY+ pair delivers 10A @ 5V with 180° phase shift to halve input ripple current. Use Value: Reduced input capacitance requirement (vs. single-phase); windowed PGOOD confirms valid 5V rail before enabling downstream communication interfaces. |
Use Scenario: Powers LTE Cat-M1 modem in connected vehicle telematics unit requiring ultra-low standby power and fast wake-up. IC Role / Device Role / Timing Role: Always-on buck converter operating in skip mode, supplying 3.8V @ 500mA with 10μA IQ and 2.5ms soft-start. Use Value: 99% dropout enables operation during engine cranking (6V battery); EN threshold accuracy (±75mV) prevents false turn-off during transients. |
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 |
|---|---|---|---|
| MAX20408AFOF/VY+ | 8A rated (vs. 10A), same pinout and feature set except lower ILIM (12A vs. 14A) and no windowed PGOOD. | Preferred for cost-sensitive 8A designs where 10A margin is unnecessary; shares identical layout and firmware interface. | Select MAX20408AFOF/VY+ when full 10A capability is not required and BOM cost optimization is prioritized. |
| TPS62933RGER | 6A rated, 36V input, 1.8V–5.5V adjustable output, 15μA IQ, QFN-16 package - lacks dual-phase, spread-spectrum, or AEC-Q100 Grade 1 rating. | Suitable for non-safety-critical industrial or commercial 6A rails; not qualified for automotive front-end or ADAS use. | Choose TPS62933RGER only for non-automotive applications where AEC-Q100 and >8A output are not required. |
Compared with MAX20408AFOF/VY+, the MAX20410AFOF/VY+ provides higher current capability and enhanced PGOOD windowing for tighter system-level monitoring; versus TPS62933RGER, it delivers automotive-grade reliability, dual-phase scalability, and lower IQ - making it the sole option for AEC-Q100-compliant 10A domain controller rails.
Availability
MAX20410AFOF/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power supplies, and domain controller auxiliary rails requiring stable component supply across extended temperature and long lifecycle commitments.
Supply support for MAX20410AFOF/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, signal chain, and RF solutions.
The MAX20410AFOF/VY+ belongs to Analog Devices' automotive power management portfolio, designed specifically for high-reliability, high-current DC-DC conversion in ADAS, infotainment, and zonal architecture domain controllers.
FAQ
What is the maximum continuous output current of the MAX20410AFOF/VY+?
The MAX20410AFOF/VY+ delivers up to 10A continuous output current under recommended operating conditions (e.g., 12VIN/5VOUT/400kHz, 70°C ambient on 4-layer EV kit). This rating is validated with thermal derating per θJA = 27°C/W and requires proper PCB copper pour and airflow. The device achieves this using integrated 25mΩ/12mΩ MOSFETs and a thermally optimized FC2QFN-17 package.
Does the MAX20410AFOF/VY+ support dual-phase operation, and how is it configured?
Yes, the MAX20410AFOF/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). The controller's SYNCOUT drives the target's SYNC, establishing 180° phase shift and dynamic current sharing via VEA pin interconnection. No external phase-control IC is needed.
What is the purpose of the windowed PGOOD feature in the MAX20410AFOF/VY+?
Unlike standard PGOOD that asserts only on undervoltage, the MAX20410AFOF/VY+ implements a windowed PGOOD with rising threshold at 102.75–107.25% and falling threshold at 101.75–106.25% of nominal output voltage. This detects both overvoltage and undervoltage faults - critical for protecting sensitive SoCs and sensors in automotive domain controllers.
Can the MAX20410AFOF/VY+ operate during automotive cold-crank conditions?
Yes, the MAX20410AFOF/VY+ operates down to 3.0V input and supports 99% duty cycle, enabling regulation during cold-crank (as low as ~4.5V battery) and brownout events. Its 34ns minimum on-time allows stable 3.3V/5V outputs even at extreme input-to-output ratios, and the EN pin tolerates inputs as low as 3V - ensuring reliable startup in harsh automotive environments.
Is the MAX20410AFOF/VY+ pin-compatible with earlier MAX204xx devices?
Yes, the MAX20410AFOF/VY+ is pin-to-pin compatible with MAX20408AFOF/VY+, MAX20408EAFOF/VY+, and MAX20410EAFOF/VY+ in the 17-pin FC2QFN package. It shares identical pinout, footprint, and thermal pad layout - allowing drop-in replacement for higher-current upgrades without PCB redesign.
MAX20410AFOF/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):
- 6V
- Current - Output:
- 10A
- Frequency - Switching:
- 2.1MHz
- 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)
MAX20410AFOF/VY+ FAQ
1.How can I place an order for MAX20410AFOF/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOF/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 MAX20410AFOF/VY+ reliable?
The price and inventory of MAX20410AFOF/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410AFOF/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410AFOF/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOF/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOF/VY+?
MAX20410AFOF/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOF/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 MAX20410AFOF/VY+?
For technical support, including MAX20410AFOF/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOF/VY+ requirements.
6.How does Aetrix verify that MAX20410AFOF/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOF/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 MAX20410AFOF/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410AFOF/VY+?
All MAX20410AFOF/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOF/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 MAX20410AFOF/VY+ part is unused and in its original packaging.
Return procedure for MAX20410AFOF/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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