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Analog Devices Inc./Maxim Integrated MAX20410AFOD/VY+T
- Part No.:
- MAX20410AFOD/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOD/VY+T.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,108
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Product details
Overview
MAX20410AFOD/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 at input voltages from 3.0V to 36V. It features 10μA quiescent current in skip mode, 2.1MHz/400kHz selectable switching frequency, and AEC-Q100 qualification for use in ADAS power rails and infotainment domain controllers.
For engineers reviewing the MAX20410AFOD/VY+T datasheet, MAX20410AFOD/VY+T pinout, MAX20410AFOD/VY+T application, or MAX20410AFOD/VY+T equivalent, key selection criteria include dual-phase scalability to 20A, ±1% output voltage accuracy (E-version), windowed PGOOD, and 99% dropout duty cycle capability under automotive load-dump conditions.
Technical Context
The MAX20410AFOD/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 artifacts. 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, symmetrical SUP/PGND pin placement for EMI suppression, and factory-enabled spread-spectrum modulation (±3% around fSW) to reduce radiated emissions-disabled only when externally synchronized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A max - supports single-phase high-current rails for radar modules or display power supplies without external current-sharing circuitry. |
| Input Voltage Range | 3.0V to 36V - accommodates cold-crank (3V) and 42V load-dump transients in automotive 12V/24V systems. |
| Quiescent Current | 10μA in skip mode - enables always-on subsystems (e.g., telematics wake-up logic) to meet ISO 16750-2 quiescent power budgets. |
| Switching Frequency | 2.1MHz or 400kHz - 2.1MHz enables <1μH inductors and sub-22μF ceramic output caps; 400kHz optimizes efficiency at medium loads. |
| Output Voltage Accuracy | ±1% (MAX20410E variant) - ensures compliance with tight tolerance requirements of FPGA core rails or camera sensor analog supplies. |
| Duty Cycle Max | 99% - sustains regulation during deep dropout (e.g., 5VOUT from 5.05VIN), critical for post-buck LDO pre-regulation stages. |
| Thermal Rating | -40°C to +125°C ambient, AEC-Q100 Grade 1 - validated for under-hood and cockpit-mounted ECUs without derating. |
Pinout & Package
MAX20410AFOD/VY+T 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 and improves EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, EN | Enable Input | High-voltage compatible (up to 42V); asserts shutdown at VEN < 0.625V (typ), reducing IQ to 4μA. |
| 2, BST | Bootstrap Supply | Drives high-side gate; requires 0.1μF ceramic cap between BST and LX for proper bootstrap charging. |
| 3, 9, SUP | Power Supply Input | Dual-SUP pins internally connected; bypass with 0.1μF + 4.7μF ceramics close to pins to suppress high-frequency noise. |
| 4, 5, 7, 8, PGND | Power Ground | Five dedicated PGND pins minimize ground impedance and thermal resistance (θJCb = 7.7°C/W). |
| 6, LX | Switch Node | Connects to buck inductor; high-impedance when disabled; layout must minimize parasitic inductance for EMI control. |
| 10, GND | Analog Ground | Separate from PGND; connect to PCB ground plane at single point near FB/VEA to avoid noise coupling. |
| 11, BIAS | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; auto-switches from VIN to VOUT after startup if VOUT > 2.5V. |
| 12, FB | Feedback Input | Programs output voltage via resistor divider (0.8V–10V range) or connects to BIAS for fixed-output configurations. |
| 13, OUT | Output Sense | Used with FB-to-BIAS connection to sense regulated output directly, improving load regulation accuracy. |
| 14, VEA | Error Amplifier Output | Connected between controller/target in dual-phase mode for precise current sharing; left open in single-phase. |
| 15, PGOOD | Open-Drain Power-Good | Windowed indicator (101.75–106.25% rising/falling thresholds for MAX20410E); asserts low during soft-start and fault. |
| 16, SYNC | Synchronization Input | Selects FPWM (high), skip mode (low), or external clock sync; accepts 360kHz–2.6MHz input with 1.4V/0.4V logic thresholds. |
| 17, SYNCOUT | 180° Out-of-Phase Clock Output | Configures target IC in dual-phase; connect to BIAS to set target mode; open in single-phase operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase scalability | Two MAX20410AFOD/VY+T ICs support 20A total with dynamic current sharing and 180° phase shift-enabling compact, low-ripple high-power rails. |
| Windowed PGOOD | Asymmetric rising/falling thresholds (102.75–107.25%/101.75–106.25%) detect overvoltage and undervoltage faults independently-critical for safety-critical ADAS sensors. |
| Spread-spectrum EMI reduction | ±3% triangular frequency modulation centered at fSW reduces peak radiated emissions by >10dB without compromising regulation stability. |
| Ultra-low dropout operation | 99% duty cycle enables regulation down to VIN – VDROP ≈ 5.05V for 5VOUT, supporting legacy 5V systems during battery brownout. |
| Robust automotive protection | Integrated short-circuit hiccup mode (25ms off-time), thermal shutdown at 175°C, and 42V load-dump tolerance meet ISO 7637-2 Pulse 5a requirements. |
Applications
| ADAS Radar Power Supply | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powers 77GHz radar transceiver ASIC requiring clean, tightly regulated 1.0V/3A supply with fast transient response. IC Role / Device Role / Timing Role: Primary buck regulator providing low-noise, high-efficiency conversion from 12V battery to 1.0V core rail. Use Value: 34ns minimum on-time and average current-mode control enable stable 12V→1.0V step-down without pulse skipping; ±1% accuracy maintains ASIC timing margins. |
Use Scenario: Supplies 0.8V/8A core voltage to automotive-grade application processor in head-unit system-on-chip. IC Role / Device Role / Timing Role: High-current, low-VIN buck converter operating in forced-PWM mode to suppress audio-band ripple. Use Value: 2.1MHz switching frequency allows sub-1μH inductor and <22μF ceramic output capacitance-reducing solution size by 40% vs. 400kHz alternatives. |
| Telematics Always-On Domain | Camera Module Bias Supply |
|
Use Scenario: Powers LTE modem and GNSS receiver in vehicle telematics control unit with strict 25μA total system quiescent budget. IC Role / Device Role / Timing Role: Standby-mode buck regulator delivering 3.3V/100mA with ultra-low IQ operation. Use Value: 10μA quiescent current in skip mode meets ISO 16750-2 Class D requirements; EN threshold accuracy (±0.075V) enables precise wake-up control. |
Use Scenario: Generates 2.8V/500mA analog bias for CMOS image sensor in surround-view camera system. IC Role / Device Role / Timing Role: Fixed-output buck converter with windowed PGOOD monitoring output integrity during video streaming. Use Value: PGOOD window (101.75–106.25% rising, 101.75–106.25% falling) detects both overvoltage (sensor damage risk) and undervoltage (image corruption) simultaneously. |
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 |
|---|---|---|---|
| MAX20408AFOD/VY+T | 8A rated (vs. 10A), identical pinout and feature set except lower ILIM (12A vs. 14A) and no windowed PGOOD. | Suitable for cost-sensitive 8A rails where dual-phase scaling is unnecessary and tighter PGOOD window not required. | Select MAX20408AFOD/VY+T when full 10A capability and windowed fault detection are not needed-reduces BOM cost without layout change. |
| TPS546B24RVFT | 6V max VIN (vs. 36V), 12A rating, PMBus interface, no spread spectrum, different pinout and thermal pad configuration. | Targeted at 48V server/industrial applications-not automotive qualified; lacks AEC-Q100, load-dump tolerance, or -40°C to +125°C operation. | Choose TPS546B24RVFT only for non-automotive 48V systems requiring digital control; not a drop-in replacement due to VIN, qualification, and package mismatch. |
Compared with MAX20408AFOD/VY+T, the MAX20410AFOD/VY+T delivers higher current and enhanced PGOOD windowing for safety-critical rails; versus TPS546B24RVFT, it provides automotive-specific ruggedness and analog simplicity at the expense of digital configurability.
Availability
MAX20410AFOD/VY+T is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and telematics applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20410AFOD/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 MAX20410AFOD/VY+T belongs to Analog Devices' automotive power management portfolio, designed specifically for demanding DC-DC conversion in ADAS, infotainment, and body electronics where reliability, efficiency, and EMI robustness are critical.
FAQ
What is the maximum output current capability of the MAX20410AFOD/VY+T?
The MAX20410AFOD/VY+T delivers up to 10A continuous output current in single-phase operation. When configured in dual-phase mode with a second MAX20410AFOD/VY+T as target, the combined solution supports up to 20A with dynamic current sharing and 180° phase interleaving-verified per datasheet Section "Dual-Phase Operation" and electrical characteristics table.
Does the MAX20410AFOD/VY+T support spread-spectrum modulation, and how is it enabled?
Yes, the MAX20410AFOD/VY+T includes factory-enabled spread-spectrum modulation that varies switching frequency by ±3% around the selected fSW (2.1MHz or 400kHz) using a triangular waveform. It operates automatically when not synchronized to an external clock; modulation is disabled if SYNC receives a valid external clock signal-detailed in "Spread-Spectrum Option" section of the datasheet.
What is the purpose of the VEA pin on the MAX20410AFOD/VY+T, and how should it be used?
The VEA pin on the MAX20410AFOD/VY+T is the internal voltage-loop error amplifier output. In dual-phase configurations, VEA pins of controller and target ICs must be connected together to ensure matched reference and accurate current sharing. In single-phase operation, VEA is left unconnected-per Pin Descriptions table and "Dual-Phase Operation" subsection in the datasheet.
How does the PGOOD functionality differ between the MAX20410AFOD/VY+T and earlier MAX20410 variants?
The MAX20410AFOD/VY+T is an E-version device featuring windowed PGOOD with asymmetric thresholds: rising edge at 102.75–107.25% and falling edge at 101.75–106.25% of nominal VOUT. Standard MAX20410 offers only standard PGOOD (92–96% rising, 91–95% falling). This windowed behavior enables independent overvoltage and undervoltage fault detection-confirmed in Electrical Characteristics Table.
Can the MAX20410AFOD/VY+T operate with input voltage as low as 3.0V, and what is its dropout behavior?
Yes, the MAX20410AFOD/VY+T operates from 3.0V to 36V input. In dropout, it achieves up to 99% duty cycle-verified in Absolute Maximum Ratings and General Description-allowing regulation with minimal VIN–VOUT differential (e.g., 5.05V input for 5V output). This supports cold-crank scenarios and extends operational range beyond typical buck converters.
MAX20410AFOD/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 (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+T FAQ
1.How can I place an order for MAX20410AFOD/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOD/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 MAX20410AFOD/VY+T reliable?
The price and inventory of MAX20410AFOD/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 MAX20410AFOD/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20410AFOD/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOD/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOD/VY+T?
MAX20410AFOD/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOD/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 MAX20410AFOD/VY+T?
For technical support, including MAX20410AFOD/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOD/VY+T requirements.
6.How does Aetrix verify that MAX20410AFOD/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOD/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 MAX20410AFOD/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20410AFOD/VY+T?
All MAX20410AFOD/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOD/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 MAX20410AFOD/VY+T part is unused and in its original packaging.
Return procedure for MAX20410AFOD/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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