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Analog Devices Inc./Maxim Integrated MAX20410AFOF/VY+T
- Part No.:
- MAX20410AFOF/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOF/VY+T.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
MAX20410AFOF/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.
For engineers reviewing the MAX20410AFOF/VY+T datasheet, MAX20410AFOF/VY+T pinout, MAX20410AFOF/VY+T application, or MAX20410AFOF/VY+T equivalent, key selection criteria include dual-phase scalability to 20A, 99% dropout duty cycle, windowed PGOOD, thermally enhanced 3.5mm × 3.75mm 17-pin FC2QFN package, and EN threshold accuracy optimized for automotive battery monitoring.
Technical Context
The MAX20410AFOF/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 or 24V→5V) without pulse-skipping artifacts. Its dual-phase capability uses VEA pin coupling and SYNCOUT-to-SYNC interconnection to achieve dynamic current sharing and precise 180° phase alignment between controller and target ICs.
It integrates a 1.8V BIAS linear regulator with automatic switchover from input to output, symmetric SUP/PGND pin placement for balanced high-current loops, and factory-enabled spread-spectrum modulation (±3% around fSW) to reduce EMI peak emissions-disabled only when externally synchronized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A max - supports high-power ADAS camera modules and infotainment SoCs without external current boosting. |
| Input Voltage Range | 3.0V to 36V - withstands cold-crank (3V) and 42V load-dump transients per ISO 7637-2. |
| Quiescent Current | 10μA in skip mode - enables always-on systems (e.g., telematics wake-up logic) with minimal battery drain. |
| Switching Frequency | 2.1MHz or 400kHz - 2.1MHz allows <1μH inductors and <10μF ceramic output caps; 400kHz maximizes efficiency at mid-load. |
| Output Voltage Accuracy | ±1% (MAX20410E variant) - ensures reliable DDR memory or FPGA core rail regulation under thermal and line variation. |
| Duty Cycle Max | 99% - maintains regulation during deep automotive dropout (e.g., 5.5VIN→5VOUT). |
| Thermal Range | −40°C to +125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted ECUs. |
Pinout & Package
MAX20410AFOF/VY+T is housed in a thermally enhanced 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad (bottom-side PGND connection). 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); 0.9V typical enable threshold (E-grade) for precise UVLO detection in 12V/24V systems. |
| 2, BST | Bootstrap Supply | Connects 0.1μF ceramic capacitor to LX; sustains high-side gate drive during continuous conduction mode. |
| 3, 9, SUP | IC Power Input | Dual pins internally tied; bypassed with 0.1μF + 4.7μF ceramics near IC for low-impedance 36V input path. |
| 4, 5, 7, 8, PGND | Power Ground | Five dedicated PGND pins minimize IR drop and thermal resistance; must be connected to solid ground plane under thermal pad. |
| 6, LX | Switch Node | Direct connection to buck inductor; high dv/dt node requiring tight layout and guard ring to reduce EMI. |
| 10, GND | Analog Ground | Separate from PGND; connects to PCB ground via single-point star junction to isolate noise-sensitive feedback paths. |
| 11, BIAS | 1.8V LDO Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; auto-switches from input to output post-startup if VOUT > 2.5V. |
| 12, FB | Feedback Input | Connects to resistor divider for adjustable output (0.8V–10V) or to BIAS for fixed-output configuration (3.3V/4V/5V). |
| 13, OUT | Output Sense | Used only in fixed-output mode (FB tied to BIAS); senses actual VOUT for accurate regulation and PGOOD windowing. |
| 14, VEA | Error Amplifier Output | Connected between controller and target in dual-phase mode to equalize current sharing; left open in single-phase. |
| 15, PGOOD | Open-Drain Power-Good | Windowed indicator (102.75%–107.25% rise / 101.75%–106.25% fall) - asserts fault only outside tight regulation band. |
| 16, SYNC | Synchronization Input | Configures FPWM (high), skip mode (low), or external clock sync (AC signal); disables internal spread-spectrum when driven. |
| 17, SYNCOUT | 180° Out-of-Phase Clock | In dual-phase: tied to BIAS on target IC; in single-phase: left floating. Enables precise interleaving without external timing IC. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase operation with dynamic current sharing | Two MAX20410AFOF/VY+T ICs deliver up to 20A with <±5% current mismatch across load/temperature, eliminating need for external current-sense resistors. |
| Windowed PGOOD with ±2.5% hysteresis | Rejects transient glitches while detecting sustained overvoltage (e.g., regulator runaway) and undervoltage (e.g., capacitor aging), critical for ASIL-B functional safety compliance. |
| Thermally optimized FC2QFN package | θJCb = 7.7°C/W (4-layer JEDEC board) enables 10A operation at +85°C ambient without forced airflow - validated for automotive under-hood placement. |
| Programmable EN threshold (0.9V typ) | Enables precise system-level brown-out detection at 11.5V (for 12V nominal battery), supporting ISO 16750-2 cold-crank sequencing without external comparators. |
| Spread-spectrum modulation (±3%) | Reduces 2.1MHz fundamental EMI peak by >10dB, easing CISPR 25 Class 5 radiated emissions certification for infotainment head units. |
Applications
| ADAS Camera Power Supply | Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powers 8MP surround-view camera module with real-time ISP processing and MIPI CSI-2 interface. IC Role / Device Role / Timing Role: Primary 3.3V/5V buck regulator supplying image sensor, ISP, and serializer; provides PGOOD handshake to SoC boot sequence. Use Value: 10μA IQ enables always-on wake-on-motion; 99% duty cycle sustains operation during engine cranking; AEC-Q100 ensures reliability in vibration-prone mounting locations. |
Use Scenario: Delivers 1.1V/3A core voltage to automotive-grade application processor (e.g., NXP i.MX8Q) in head unit. IC Role / Device Role / Timing Role: High-efficiency, low-noise point-of-load regulator with soft-start ramp to prevent SoC reset during power-up. Use Value: 2.1MHz switching enables compact 1.0μH inductor + 22μF ceramic solution; ±1% accuracy meets SoC VDDCORE tolerance; dual-phase option scales to 1.2V/15A for next-gen platforms. |
| Telematics Control Unit (TCU) Backup Rail | Automotive Gateway ECU Power |
|
Use Scenario: Provides 5V/2A always-on backup supply for GNSS receiver and cellular modem in disconnected battery state. IC Role / Device Role / Timing Role: Low-IQ buck converter maintaining RTC, secure boot, and LTE modem sleep modes during vehicle off-time. Use Value: 10μA skip-mode IQ extends 12V battery life beyond 6 months; 36V input range tolerates jump-start surges; PGOOD confirms rail readiness before modem wake-up. |
Use Scenario: Generates 5V/6A main supply for multi-core gateway ECU managing CAN FD, Ethernet AVB, and LIN networks. IC Role / Device Role / Timing Role: Primary DC-DC stage feeding secondary LDOs and isolated DC-DCs; dual-phase configuration supports future 12A expansion. Use Value: Dual-phase current sharing eliminates hot-spotting; spread-spectrum reduces conducted noise on shared 5V bus; SYNC input allows synchronization to Ethernet PHY clock to avoid beat frequencies. |
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+T | 8A rated (vs. 10A), identical pinout and feature set except lower ILIM (12A vs. 14A) and no windowed PGOOD. | Preferred for cost-sensitive 8A designs where full 10A margin is unnecessary; shares same PCB footprint and firmware. | Select when peak load ≤ 8A and windowed PGOOD not required for functional safety. |
| TPS62933RGER | 10A, 3V–36V, but only 20μA IQ (2× higher), no dual-phase support, and no AEC-Q100 qualification. | Suitable for industrial or commercial automotive-adjacent systems (e.g., fleet telematics), not safety-critical ADAS. | Choose only for non-AEC-Q100 applications needing TI's WEBENCH support or different package availability. |
Compared with MAX20408AFOF/VY+T, the MAX20410AFOF/VY+T delivers higher current capability and windowed PGOOD for tighter fault detection-critical for ASIL-B systems-while TPS62933RGER offers TI ecosystem advantages but lacks automotive qualification and dual-phase scalability.
Availability
MAX20410AFOF/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power supplies, and telematics backup rails requiring stable component supply across extended temperature and long lifecycle commitments.
Supply support for MAX20410AFOF/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 MAX20410AFOF/VY+T belongs to Analog Devices' automotive power management portfolio, designed specifically for demanding 12V/24V vehicle subsystems requiring AEC-Q100 reliability, ultra-low IQ, and scalable high-current delivery.
FAQ
What is the maximum output current rating of the MAX20410AFOF/VY+T?
The MAX20410AFOF/VY+T 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 JEDEC board; actual achievable current depends on ambient temperature, airflow, and layout. The device includes cycle-by-cycle current limiting at 14A (typ) and thermal shutdown at 175°C to protect against overload.
Does the MAX20410AFOF/VY+T support dual-phase operation, and how is it configured?
Yes, the MAX20410AFOF/VY+T supports dual-phase operation to deliver up to 20A. One IC is configured as controller (SYNCOUT left open), the other as target (SYNCOUT tied to BIAS). VEA pins are connected between both devices, and SYNC of the target is driven by SYNCOUT of the controller. This achieves 180° phase shift and dynamic current sharing without external controllers or current-sense amplifiers.
What is the purpose of the windowed PGOOD feature in the MAX20410AFOF/VY+T?
The windowed PGOOD in the MAX20410AFOF/VY+T provides asymmetric high/low thresholds (e.g., 102.75%–107.25% for rising edge, 101.75%–106.25% for falling edge) to detect both overvoltage and undervoltage faults with hysteresis. Unlike standard PGOOD, it prevents false triggering during transient load steps while ensuring rapid fault response-essential for ASIL-B diagnostic coverage in automotive safety applications.
Can the MAX20410AFOF/VY+T operate with a 2.1MHz switching frequency and still meet AM radio band immunity requirements?
Yes, the MAX20410AFOF/VY+T guarantees no AM band interference at 2.1MHz because its fundamental switching frequency lies far above the 530–1710kHz AM radio band. Combined with integrated spread-spectrum modulation (±3%), it further suppresses spectral peaks, helping designs pass CISPR 25 Class 5 radiated emissions testing without additional shielding or filtering.
What is the role of the BIAS pin on the MAX20410AFOF/VY+T, and how should it be decoupled?
The BIAS pin on the MAX20410AFOF/VY+T outputs a regulated 1.8V supply for internal circuitry. It must be decoupled with ≥2.2μF ceramic capacitance to GND, placed as close as possible to the pin. During startup, BIAS draws from SUP; once VOUT exceeds 2.5V, it auto-switches to output-derived power-reducing input current and improving light-load efficiency. Failure to properly decouple BIAS risks instability and PGOOD misassertion.
MAX20410AFOF/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):
- 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+T FAQ
1.How can I place an order for MAX20410AFOF/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOF/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 MAX20410AFOF/VY+T reliable?
The price and inventory of MAX20410AFOF/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 MAX20410AFOF/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20410AFOF/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOF/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOF/VY+T?
MAX20410AFOF/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOF/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 MAX20410AFOF/VY+T?
For technical support, including MAX20410AFOF/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOF/VY+T requirements.
6.How does Aetrix verify that MAX20410AFOF/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOF/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 MAX20410AFOF/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20410AFOF/VY+T?
All MAX20410AFOF/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOF/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 MAX20410AFOF/VY+T part is unused and in its original packaging.
Return procedure for MAX20410AFOF/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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