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Analog Devices Inc./Maxim Integrated MAX20410AFOC/VY+T
- Part No.:
- MAX20410AFOC/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOC/VY+T.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,818
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Product details
Overview
MAX20410AFOC/VY+T 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. It features 10μA quiescent current in skip mode, 2.1MHz/400kHz selectable switching frequency, ±1% output voltage accuracy (E-grade), and AEC-Q100 qualification for use in ADAS power rails and infotainment domain controllers.
For engineers reviewing the MAX20410AFOC/VY+T datasheet, MAX20410AFOC/VY+T pinout, MAX20410AFOC/VY+T application, or MAX20410AFOC/VY+T equivalent, key selection criteria include dual-phase scalability to 20A, 99% dropout duty cycle, windowed PGOOD with 102.75–107.25% threshold range, and FC2QFN-17 package thermal performance (θJB = 9.9°C/W on EV kit).
Technical Context
The MAX20410AFOC/VY+T implements average current-mode control with 34ns minimum on-time, enabling stable operation across wide VIN/VOUT 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 a 1.8V BIAS linear regulator with 2.2μF output capacitance requirement, symmetric SUP/PGND pin placement for EMI reduction, and factory-configurable spread-spectrum modulation (±3% at 2.1MHz) that disables automatically during external clock synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A max - supports single-phase high-current rails without external current-sharing circuitry |
| Input Voltage Range | 3.0V to 36V - withstands automotive load dump (42V transient) and cold-crank down to 3V |
| 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 1.0μH inductors and <10μF ceramic output capacitors |
| Output Voltage Accuracy | ±1% (MAX20410E variant) - ensures precise regulation for sensitive SoC cores and SerDes supplies |
| Duty Cycle Max | 99% - maintains regulation during deep dropout (e.g., 5VOUT from 5.05VIN) |
| Thermal Performance | θJB = 9.9°C/W (4-layer EV kit) - sustains 10A continuous output at +85°C ambient with no derating |
Pinout & Package
MAX20410AFOC/VY+T uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package (package code F173A3FY+4) with exposed thermal pad and symmetric SUP/PGND layout for low-impedance power loops.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable Input | High-voltage compatible (3V–36V); 0.9V typical enable threshold (E-grade) enables direct connection to automotive microcontroller GPIO |
| 2 BST | Bootstrap Supply | Drives high-side gate; requires 0.1μF ceramic capacitor to LX for reliable 10A switching |
| 3, 9 SUP | Power Input & HS Switch Supply | Dual pins internally connected; bypassed with 0.1μF + 4.7μF ceramics for low-ESR input filtering |
| 4, 5, 7 PGND | Power Ground | Three dedicated low-inductance ground returns minimize switching noise coupling into analog sections |
| 6 LX | Switch Node | Connects to buck inductor; 34ns min on-time supports high step-down ratios without subharmonic oscillation |
| 10 GND | Analog Ground | Separate from PGND; connected via star point to reduce FB/VEA noise injection |
| 11 BIAS | 1.8V LDO Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; auto-switches from VIN to VOUT post-startup |
| 12 FB | Feedback Input | Accepts resistor divider (0.8V–10V adjustable) or direct tie-to-BIAS for fixed outputs (3.3V/4V/5V) |
| 13 OUT | Output Sense | Used only when FB tied to BIAS; enables accurate remote sensing of regulated output voltage |
| 14 VEA | Error Amplifier Output | Connected between controller/target in dual-phase mode for matched current sharing and transient response |
| 15 PGOOD | Open-Drain Power-Good | Windowed indicator (102.75–107.25% rising/falling) confirms valid output before system boot |
| 16 SYNC | Synchronization Input | Selects FPWM (high), skip mode (low), or external clock sync (AC signal); disables spread-spectrum when active |
| 17 SYNCOUT | 180° Out-of-Phase Clock | Configures target IC in dual-phase; tied to BIAS on target, drives SYNC on second device |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase capability | Two MAX20410AFOC/VY+T ICs deliver 20A with dynamic current sharing and 180° phase shift-no external controller required |
| Windowed PGOOD | 102.75–107.25% rising/falling thresholds (E-grade) provide tighter fault detection than standard 93–96% windows |
| EN threshold accuracy | 0.825–0.975V enable range (E-grade) enables precise UVLO sequencing with automotive battery monitoring circuits |
| Symmetric SUP/PGND layout | Paired power pins minimize loop area and radiated EMI-critical for CISPR 25 Class 5 compliance in ADAS modules |
| Spread-spectrum option | Factory-enabled ±3% frequency dithering reduces peak EMI by >10dB at fundamental switching frequency |
| Thermally enhanced FC2QFN | θJCb = 7.7°C/W and θJB = 9.9°C/W enable full 10A output at +85°C ambient without heatsink or airflow |
Applications
| ADAS Camera Power Rail | Infotainment SoC Core Supply |
|---|---|
|
Use Scenario: Powers 5V/3.3V rails for 8MP automotive camera modules with real-time ISP processing. IC Role / Device Role / Timing Role: Primary buck regulator delivering 10A peak current during image burst capture; PGOOD validates rail stability before sensor initialization. Use Value: 99% dropout operation sustains 5V output during cold-crank (5.2V battery); 2.1MHz switching avoids AM band interference in rearview camera EMI testing. |
Use Scenario: Supplies 1.1V core voltage to automotive-grade application processors (e.g., NXP S32G) with dynamic DVFS scaling. IC Role / Device Role / Timing Role: Adjustable-output buck converter with FB feedback; soft-start (2.5ms) prevents inrush-induced brownout during processor boot. Use Value: ±1% output accuracy ensures CPU operates within AVS voltage guardbands; 10μA IQ extends parking-mode battery life beyond 30 days. |
| Domain Controller Auxiliary Rail | Automotive Telematics Backup Supply |
|
Use Scenario: Generates isolated 3.3V auxiliary rail for CAN FD transceivers and Ethernet PHYs in zonal architecture gateways. IC Role / Device Role / Timing Role: Dual-phase configured with second MAX20410AFOC/VY+T to deliver 20A with interleaved ripple cancellation. Use Value: 180° phase shift reduces output capacitor RMS current by 30%, allowing smaller 22μF X7R ceramics instead of 47μF tantalum. |
Use Scenario: Powers GNSS receiver and LTE modem during vehicle ignition-off state using low-quiescent battery path. IC Role / Device Role / Timing Role: Always-on buck converter operating in skip mode; EN controlled by vehicle security MCU for wake-on-LTE events. Use Value: 10μA IQ draws only 0.86mAh/day-enables 12-month backup runtime on 25mAh coin cell; AEC-Q100 Grade 1 rating ensures -40°C startup reliability. |
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 |
|---|---|---|---|
| MAX20408AFOC/VY+T | 8A rated (vs. 10A), same package/pinout, identical E-grade features (±1% VOUT, windowed PGOOD, EN accuracy) | Lower current headroom; suitable where peak load ≤8A (e.g., mid-tier ADAS ECUs) | Select MAX20408AFOC/VY+T when system peak current is confirmed ≤8A and cost optimization is prioritized |
| TPS62933RGER | 6A rated, 3.8V–32V input, 1.5MHz fixed freq, 15μA IQ, QFN-16 package (3.5×3.5mm) | Lacks dual-phase support, no spread-spectrum, lower thermal performance (θJA = 42°C/W) | Choose TPS62933RGER only for non-AEC-Q100 designs requiring TI ecosystem compatibility and moderate 6A loads |
Compared with MAX20408AFOC/VY+T, the MAX20410AFOC/VY+T provides 2A higher current headroom and identical E-grade precision features; versus TPS62933RGER, it delivers 67% higher current, superior thermal metrics, AEC-Q100 qualification, and dual-phase scalability-making it the only option for 10A+ automotive domain controllers requiring functional safety alignment.
Availability
MAX20410AFOC/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC core supplies, and domain controller auxiliary rails requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX20410AFOC/VY+T 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 MAX204xx family targets automotive power management with AEC-Q100 qualification, ultra-low IQ, and dual-phase scalability-designed specifically for next-generation ADAS, zonal controllers, and electrified vehicle subsystems demanding high efficiency and robustness.
FAQ
What is the maximum output current capability of the MAX20410AFOC/VY+T?
The MAX20410AFOC/VY+T delivers up to 10A continuous output current in single-phase operation. When configured in dual-phase mode with a second MAX20410AFOC/VY+T as target, the system supports up to 20A with dynamic current sharing and 180° phase interleaving-verified per datasheet Section "Dual-Phase Operation" and thermal characterization on 4-layer EV kit.
Does the MAX20410AFOC/VY+T support adjustable output voltage, and what is the range?
Yes, the MAX20410AFOC/VY+T supports adjustable output voltage from 0.8V to 10V using an external resistor divider on the FB pin. This range applies when operating at 400kHz or 2.1MHz switching frequency. Fixed-output variants (3.3V, 4V, 5V) are also available, but MAX20410AFOC/VY+T is the E-grade 10A adjustable version per Ordering Information table.
What is the quiescent current of the MAX20410AFOC/VY+T in skip mode, and how does it compare to forced-PWM mode?
The MAX20410AFOC/VY+T draws 10μA quiescent current in skip mode at no load, enabling ultra-low-power always-on applications. In forced-PWM (FPWM) mode, IQ rises to approximately 1000μA due to continuous switching. The 100× difference makes skip mode essential for battery-backed telematics and parking surveillance systems.
Is the MAX20410AFOC/VY+T AEC-Q100 qualified, and what grade does it meet?
Yes, the MAX20410AFOC/VY+T is AEC-Q100 qualified per Rev 14 datasheet, meeting Grade 1 specifications (–40°C to +125°C ambient operating temperature). This qualification covers stress testing for automotive environments including temperature cycling, humidity bias, and mechanical shock-ensuring reliability in engine bay and ADAS camera housing deployments.
How does the windowed PGOOD feature of the MAX20410AFOC/VY+T differ from standard PGOOD implementations?
The MAX20410AFOC/VY+T (E-grade) implements a windowed PGOOD with rising threshold at 102.75–107.25% and falling threshold at 101.75–106.25% of nominal VOUT-unlike standard 92–96% windows. This tighter window detects overvoltage faults earlier (e.g., feedback resistor drift or transient overshoot), improving system-level safety in ASIL-B compliant power domains.
MAX20410AFOC/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX20410AFOC/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOC/VY+T 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+T reliable?
The price and inventory of MAX20410AFOC/VY+T 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+T is usually 5 days.
3.What payment methods are accepted for MAX20410AFOC/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOC/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOC/VY+T?
MAX20410AFOC/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOC/VY+T 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+T?
For technical support, including MAX20410AFOC/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOC/VY+T requirements.
6.How does Aetrix verify that MAX20410AFOC/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOC/VY+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX20410AFOC/VY+T?
All MAX20410AFOC/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOC/VY+T, 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+T part is unused and in its original packaging.
Return procedure for MAX20410AFOC/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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