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Analog Devices Inc./Maxim Integrated MAX20410EAFOF/VY+T
- Part No.:
- MAX20410EAFOF/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410EAFOF/VY+T.pdf
- Description:
- IC REG BUCK 3.3V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,057
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Product details
Overview
MAX20410EAFOF/VY+T from Analog Devices is an automotive-grade, fully integrated 10A synchronous buck converter with internal high-side and low-side MOSFETs, 3.0V–36V input range, ±1% output voltage accuracy (MAX20410E variant), and 400kHz/2.1MHz selectable switching frequency - used in ADAS power rails and infotainment domain controllers.
For engineers reviewing the MAX20410EAFOF/VY+T datasheet, MAX20410EAFOF/VY+T pinout, MAX20410EAFOF/VY+T application, or MAX20410EAFOF/VY+T equivalent, this page delivers verified package mapping (17-pin FC2QFN), dual-phase capability up to 20A, windowed PGOOD, 10μA quiescent current in skip mode, and AEC-Q100 qualification for automotive system design.
Technical Context
The MAX20410EAFOF/VY+T 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 at light load. Its dual-phase architecture supports dynamic current sharing and 180° out-of-phase operation when paired with a second IC.
It integrates a 1.8V BIAS linear regulator, programmable EN threshold (0.825V–0.975V), spread-spectrum EMI reduction, and robust protection including hiccup-mode short-circuit response, thermal shutdown at 175°C, and 42V load-dump tolerance - all validated over –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports high-power ADAS ECUs and radar modules without external current boosting. |
| Input Voltage Range | 3.0V to 36V - accommodates cold-crank (3V), nominal 12V/24V, and 42V load-dump transients in automotive systems. |
| Switching Frequency | 400kHz or 2.1MHz - enables compact magnetics and avoids AM band interference; 2.1MHz allows <1μH inductors. |
| Output Voltage Accuracy | ±1% (MAX20410E) - ensures precise rail regulation for sensitive SoCs and image sensors in camera modules. |
| Quiescent Current | 10μA in skip mode - extends battery life in always-on vehicle networks (e.g., telematics wake-up circuits). |
| Duty Cycle Max | 99% - maintains regulation during deep dropout (e.g., 5V output from 5.05V input), critical for stop-start operation. |
| PGOOD Window | 102.75%–107.25% (rising), 101.75%–106.25% (falling) - provides tighter fault detection than standard 92–96% windows. |
Pinout & Package
MAX20410EAFOF/VY+T uses a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad (pin 17 = SYNCOUT). Symmetric SUP/PGND pin placement minimizes high-current loop area and improves EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable Input | High-voltage compatible (3V–36V); 0.9V typical enable threshold enables direct connection to automotive microcontroller GPIOs. |
| 2 (BST) | Bootstrap Supply | Drives high-side gate; requires 0.1μF ceramic capacitor between BST and LX for proper bootstrap charging. |
| 3, 9 (SUP) | IC Power Input | Dual SUP pins internally connected; bypass with 0.1μF + 4.7μF ceramics close to pins for noise immunity. |
| 4, 5, 7, 8 (PGND) | Power Ground | Four dedicated PGND pins reduce ground impedance and improve thermal dissipation under 10A load. |
| 6 (LX) | Switch Node | Connects to buck inductor; high-impedance when disabled; requires tight layout to minimize EMI and ringing. |
| 10 (GND) | Analog Ground | Separate from PGND; connects to PCB ground plane at single point to avoid noise coupling into feedback path. |
| 11 (BIAS) | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; switches source from VIN to VOUT after startup. |
| 12 (FB) | Feedback Input | Accepts resistor divider for adjustable output (0.8V–10V) or ties to BIAS for fixed 3.3V/4V/5V options. |
| 13 (OUT) | Output Sense | Used only with fixed-output configuration (FB tied to BIAS); senses actual VOUT for accurate regulation. |
| 14 (VEA) | Error Amplifier Output | Connected between controller/target in dual-phase mode for synchronized current sharing; open in single-phase. |
| 15 (PGOOD) | Open-Drain Power-Good | Asserts low during soft-start or if VOUT falls outside windowed threshold; requires external pull-up to ≤5.5V. |
| 16 (SYNC) | Synchronization Input | Configures FPWM (high), skip mode (low), or external clock sync (AC signal); supports 360kHz–2.6MHz range. |
| 17 (SYNCOUT) | 180° Out-of-Phase Clock | In dual-phase, connects to SYNC of target IC; left open in single-phase; enables precise interleaving without external logic. |
Key Features
| Feature | Design Value |
|---|---|
| Windowed PGOOD | 102.75%–107.25% rising / 101.75%–106.25% falling thresholds - enables precise overvoltage and undervoltage detection for safety-critical rails. |
| Dual-Phase Scalability | Supports 20A total output with dynamic current sharing and 180° phase shift - eliminates need for external current-sharing ICs in high-power ADAS designs. |
| Accurate EN Threshold | 0.825V–0.975V enable threshold with ±50mV hysteresis - ensures reliable startup across battery voltage drift and temperature variation. |
| Spread-Spectrum EMI Reduction | ±3% frequency modulation - lowers peak radiated emissions by >10dB, easing CISPR 25 Class 5 compliance in automotive cabins. |
| Thermally Optimized FC2QFN | θJCb = 7.7°C/W (4-layer EV kit) - sustains 10A continuous output at +85°C ambient without forced airflow or heatsink. |
| Low Dropout Operation | 99% max duty cycle - regulates 5V output from as low as 5.05V input, supporting engine stop-start and cold-crank scenarios. |
Applications
| ADAS Camera Power Supply | Infotainment Domain Controller |
|---|---|
|
Use Scenario: Powers 5MP image sensor and ISP in front-facing ADAS camera module requiring clean, low-noise 1.8V and 3.3V rails. IC Role / Device Role / Timing Role: Primary 3.3V/10A buck regulator with windowed PGOOD monitoring and 10μA quiescent current for parking-mode operation. Use Value: ±1% output accuracy prevents sensor reset; 2.1MHz switching enables <1μH inductor and reduces board area by 40% vs. 400kHz solutions. |
Use Scenario: Supplies core voltage (1.1V @ 8A) and I/O rail (3.3V @ 6A) to ARM-based infotainment SoC with multi-rail sequencing requirements. IC Role / Device Role / Timing Role: Dual-phase configured MAX20410EAFOF/VY+T delivers 20A total at 3.3V; SYNCOUT drives secondary IC for interleaved operation. Use Value: 180° phase shift cuts input ripple by 70%, reducing bulk capacitor count; spread-spectrum mode meets strict EMC limits near AM/FM antennas. |
| Automotive Telematics Unit | Radar Module DC-DC Stage |
|
Use Scenario: Powers LTE modem, GNSS receiver, and CAN FD transceiver in always-on telematics control unit (TCU) with battery backup. IC Role / Device Role / Timing Role: 400kHz buck delivering 5V@6A with skip-mode operation; EN controlled by MCU to enter ultra-low-power state. Use Value: 10μA quiescent current extends backup battery life to >72 hours; 42V load-dump tolerance protects against alternator surge events. |
Use Scenario: Generates 5V@8A supply for 77GHz radar transceiver ASIC operating in harsh under-hood environments (–40°C to +105°C). IC Role / Device Role / Timing Role: Single-phase MAX20410EAFOF/VY+T with thermal shutdown at 175°C and AEC-Q100 Grade 1 qualification. Use Value: 95.6% peak efficiency at 12VIN/5VOUT/400kHz reduces thermal stress; symmetric SUP/PGND layout suppresses EMI coupling into RF front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20410AFOF/VY+T | Non-E variant: ±2% output accuracy, standard PGOOD (92–96%), higher EN threshold (1.2V), no windowed PGOOD or improved EN hysteresis. | Lower-cost option for non-safety-critical industrial supplies where ±2% regulation suffices and load-dump immunity is less stringent. | Select MAX20410AFOF/VY+T when budget constraints outweigh need for automotive-grade accuracy and windowed fault detection. |
| TPS546B24RVFT | Texas Instruments part: 12A rating, 2.2V–18V input, PMBus interface, lower IQ (2.5μA), but no AEC-Q100 qualification or 42V load-dump support. | Targeted at data center or telecom power where digital control and telemetry are required, not automotive environmental robustness. | Choose TPS546B24RVFT only for non-automotive applications needing PMBus configurability and sub-3μA quiescent current. |
Compared with MAX20410AFOF/VY+T, the MAX20410EAFOF/VY+T adds windowed PGOOD and ±1% accuracy essential for ASIL-B subsystems, while TPS546B24RVFT offers digital control at the cost of automotive qualification - making MAX20410EAFOF/VY+T the sole choice for AEC-Q100-compliant 10A buck conversion.
Availability
MAX20410EAFOF/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera power supplies, infotainment domain controllers, and telematics units requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410EAFOF/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 since 1965.
The MAX204xx family was designed specifically for automotive power management - delivering high-current, low-IQ, AEC-Q100-qualified buck conversion in ultra-small FC2QFN packages for space-constrained ECU designs.
FAQ
What is the maximum output current supported by the MAX20410EAFOF/VY+T?
The MAX20410EAFOF/VY+T delivers up to 10A continuous output current at 400kHz switching frequency and full thermal derating. At 2.1MHz, it supports 8A continuously due to higher switching losses. Peak current capability remains 14A (typical ILIM threshold), but sustained operation above 10A requires dual-phase configuration or active cooling.
Does the MAX20410EAFOF/VY+T support fixed output voltage without external resistors?
Yes. The MAX20410EAFOF/VY+T supports factory-programmed fixed outputs of 3.3V, 4V, or 5V. To use fixed mode, connect FB directly to BIAS and route OUT to the output capacitor. This eliminates resistor-divider errors and simplifies layout for production-critical automotive modules where component count must be minimized.
How does the windowed PGOOD feature differ from standard PGOOD in the MAX20410EAFOF/VY+T?
The MAX20410EAFOF/VY+T implements a windowed PGOOD with asymmetric thresholds: rising edge triggers at 102.75%–107.25% of nominal VOUT, and falling edge asserts at 101.75%–106.25%. This detects both overvoltage and undervoltage faults simultaneously - unlike standard PGOOD (92–96%), which only monitors undervoltage - enhancing functional safety in ASIL-B systems.
Can the MAX20410EAFOF/VY+T operate in dropout mode, and what is the minimum input voltage for 5V output?
Yes. The MAX20410EAFOF/VY+T operates in dropout mode with up to 99% duty cycle. For a 5V output, the minimum input voltage is 5.05V (5V ÷ 0.99), enabling stable regulation during automotive cold-crank events down to 5.05V - critical for start-stop systems where battery voltage dips below 6V.
Is the MAX20410EAFOF/VY+T pin-compatible with other devices in the MAX204xx family?
Yes. The MAX20410EAFOF/VY+T uses the same 17-pin FC2QFN footprint as MAX20408EAFOF/VY+T, MAX20408AFOF/VY+T, and MAX20410AFOF/VY+T. It is also pin-to-pin compatible with the lower-current MAX20404/MAX20405/MAX20406 family (4A–6A), allowing scalable power design with minimal PCB redesign.
MAX20410EAFOF/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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- 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)
MAX20410EAFOF/VY+T FAQ
1.How can I place an order for MAX20410EAFOF/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410EAFOF/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 MAX20410EAFOF/VY+T reliable?
The price and inventory of MAX20410EAFOF/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 MAX20410EAFOF/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20410EAFOF/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410EAFOF/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410EAFOF/VY+T?
MAX20410EAFOF/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410EAFOF/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 MAX20410EAFOF/VY+T?
For technical support, including MAX20410EAFOF/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410EAFOF/VY+T requirements.
6.How does Aetrix verify that MAX20410EAFOF/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20410EAFOF/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 MAX20410EAFOF/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20410EAFOF/VY+T?
All MAX20410EAFOF/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410EAFOF/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 MAX20410EAFOF/VY+T part is unused and in its original packaging.
Return procedure for MAX20410EAFOF/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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