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Analog Devices Inc./Maxim Integrated MAX20410AFOA/VY+T
- Part No.:
- MAX20410AFOA/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOA/VY+T.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,764
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Product details
Overview
MAX20410AFOA/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, and AEC-Q100 qualification for use in ADAS power rails and infotainment domain controllers.
For engineers reviewing the MAX20410AFOA/VY+T datasheet, MAX20410AFOA/VY+T pinout, MAX20410AFOA/VY+T application, or MAX20410AFOA/VY+T equivalent, key selection criteria include its dual-phase capability (up to 20A), ±1% output voltage accuracy (E-version), windowed PGOOD, and 34ns minimum on-time enabling high step-down ratios in automotive battery-supplied systems.
Technical Context
The MAX20410AFOA/VY+T implements average current-mode control with 34ns minimum on-time and 99% maximum duty cycle, enabling stable operation down to ~0.3V output from 12V input - critical for post-ignition dropout scenarios. Its dual-phase architecture supports dynamic current sharing and 180° out-of-phase operation between controller and target ICs, reducing input/output ripple and thermal stress.
It integrates a 1.8V BIAS linear regulator with 2.2μF output capacitance requirement, symmetric SUP/PGND pin placement for EMI suppression, and programmable EN threshold (0.825V–0.975V) optimized for automotive wake-up logic. The spread-spectrum option (±3% frequency modulation) is factory-enabled and active only in free-running mode.
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 at 12VIN/5VOUT/400kHz with ≥95.6% peak efficiency and thermal derating per θJA = 28.8°C/W (EV kit). |
| Quiescent Current | 10μA in skip mode - enables always-on subsystems (e.g., CAN transceivers, sensors) to meet <100μA system sleep budget. |
| Switching Frequency | 2.1MHz or 400kHz - 2.1MHz allows ≤1μH inductors and 22μF ceramic output caps; 400kHz improves light-load efficiency and EMI margin. |
| Output Voltage Accuracy | ±1% (MAX20410E variant) - ensures compliance with 3.3V/5V rail tolerances for MCU I/O and SerDes PHYs without external calibration. |
| PGOOD Window | 102.75%–107.25% (rising), 101.75%–106.25% (falling) - windowed detection prevents false resets during transient load steps in ADAS camera modules. |
| Min On-Time | 34ns - enables 5V→1.8V conversion at 2.1MHz (19:1 step-down) without pulse-skipping instability. |
Pinout & Package
MAX20410AFOA/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 for superior EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, EN | Enable Input | High-voltage compatible (3V–36V); 0.9V typical threshold enables direct connection to automotive microcontroller GPIOs without level-shifting. |
| 2, BST | Bootstrap Supply | Drives high-side gate; requires 0.1μF ceramic capacitor to LX to sustain 10A peak current during 99% duty-cycle operation. |
| 3, 9, SUP | Power Supply Input | Dual SUP pins internally connected; bypassed with 0.1μF + 4.7μF ceramics near each pin to suppress high-frequency noise from switching node. |
| 4, 5, 7, PGND | Power Ground | Four dedicated PGND pins reduce ground impedance and isolate power return paths from analog GND (pin 10). |
| 6, LX | Switch Node | Connects to buck inductor; high dv/dt node requiring tight layout and guard ring to minimize EMI coupling into FB/VEA. |
| 10, GND | Analog Ground | Separate from PGND; connects to PCB ground plane at single point to prevent noise injection into feedback loop. |
| 11, BIAS | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND for stability and low-noise biasing of error amplifier. |
| 12, FB | Feedback Input | Accepts resistor divider for adjustable output (0.8V–10V) or ties to BIAS for fixed-output configuration (3.3V/4V/5V). |
| 13, OUT | Output Sense | Used only when FB tied to BIAS; senses regulated output directly for improved load regulation and remote sensing capability. |
| 14, VEA | Error Amplifier Output | Connected between controller and target in dual-phase mode to enable precise current sharing; left open in single-phase. |
| 15, PGOOD | Open-Drain Power-Good | Windowed indicator asserts low during soft-start or if VOUT deviates beyond ±4.25% (E-version); requires pull-up to BIAS or 3.3V. |
| 16, SYNC | Synchronization Input | Configures FPWM (high), skip mode (low), or external clock sync (AC-coupled); accepts 1.7–2.6MHz (2.1MHz mode) or 360–600kHz (400kHz mode). |
| 17, SYNCOUT | 180° Out-of-Phase Clock | Drives SYNC of target IC in dual-phase setup; tied to BIAS to configure as target; left open in single-phase operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase scalability | Two MAX20410AFOA/VY+T ICs support 20A total output with dynamic current sharing and 180° phase shift - reduces input capacitor RMS current by 30% vs. single-phase. |
| Windowed PGOOD | Asymmetric rising/falling thresholds (102.75%–107.25% / 101.75%–106.25%) prevent chatter during line/load transients in safety-critical ADAS power domains. |
| Thermally optimized FC2QFN | θJCb = 11.26°C/W and θJB = 12.53°C/W (EV kit) enable 10A continuous operation at +85°C ambient without forced airflow. |
| Automotive-grade protection | Integrated hiccup-mode short-circuit protection, -40°C to +125°C operating range, and 42V load-dump tolerance meet ISO 16750-2 requirements. |
| Low-IQ skip mode | 10μA quiescent current maintains system sleep state while supporting wake-on-CAN or LIN without compromising battery life in parked vehicles. |
Applications
| ADAS Camera Power Supply | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers 12MP automotive camera module with real-time image processing ASIC requiring clean 1.8V/3A and 3.3V/2A rails. IC Role / Device Role / Timing Role: Primary buck converter delivering 3.3V at 10A peak during HDR frame capture bursts; PGOOD monitors rail integrity before sensor initialization. Use Value: 34ns min on-time enables direct 12V→3.3V conversion at 2.1MHz, eliminating intermediate 5V stage and reducing BOM count by 30%. |
Use Scenario: Supplies core voltage to quad-core ARM-based infotainment processor with dynamic DVFS scaling from 0.6V to 1.2V. IC Role / Device Role / Timing Role: Adjustable-output buck (0.8V–1.2V) operating in FPWM mode to maintain low-noise regulation during CPU load transitions. Use Value: ±1% output accuracy ensures processor operates within AVS voltage margins; 10μA IQ extends head-unit standby time to >30 days on 12Ah battery. |
| Domain Controller Auxiliary Rail | Telematics LTE Modem Supply |
Use Scenario: Generates isolated 5V/6A auxiliary rail for Ethernet switch, CAN FD transceivers, and PMIC sequencing in zonal architecture. IC Role / Device Role / Timing Role: Dual-phase configured with second MAX20410AFOA/VY+T as target to deliver 20A with <5mV cross-regulation error across temperature. Use Value: 180° phase shift cuts input ripple amplitude by 50%, allowing smaller 47μF input capacitors instead of 100μF - saving 22mm² PCB area. |
Use Scenario: Powers LTE-A modem with bursty 1.2A transmit current and <100μA receive mode, requiring ultra-low IQ and fast load-step response. IC Role / Device Role / Timing Role: Single-phase 5V/3A converter in skip mode during idle; switches to FPWM during data transmission to suppress output voltage droop. Use Value: 10μA IQ meets UMTS/LTE power class 3 sleep requirements; 99% duty cycle sustains 5V output during 6V cold-crank events without brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20408AFOA/VY+T | 8A rated (vs. 10A), same package/pinout, identical feature set except lower ILIM (12A vs. 14A) and no windowed PGOOD. | Preferred for cost-sensitive 8A designs where 10A headroom is unnecessary; shares same PCB footprint and firmware interface. | Select MAX20408AFOA/VY+T when full 10A capability is not required and BOM cost optimization is prioritized over future-proofing. |
| TPS62933RGER | 6A rated, 3.8V–36V input, 15μA IQ, 2.2MHz fixed frequency, no dual-phase or windowed PGOOD; QFN-16 package (3.5mm × 3.5mm). | Targeted at non-safety-critical industrial supplies; lacks AEC-Q100 qualification and automotive thermal specs (only -40°C to +125°C junction). | Choose TPS62933RGER only for non-automotive applications where AEC-Q100 is not mandated and 6A output suffices. |
Compared with MAX20408AFOA/VY+T, the MAX20410AFOA/VY+T provides higher current capability and windowed PGOOD for functional safety compliance, while TPS62933RGER offers lower IQ but lacks automotive qualification and dual-phase scalability - making MAX20410AFOA/VY+T the sole choice for ASIL-B power domains requiring 10A output.
Availability
MAX20410AFOA/VY+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC core rails, and domain controller auxiliary supplies requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX20410AFOA/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 targets automotive power management with AEC-Q100 qualification, integrated protection, and scalable dual-phase architecture - designed specifically for next-generation zonal E/E architectures demanding high density, low IQ, and functional safety.
FAQ
What is the maximum continuous output current supported by the MAX20410AFOA/VY+T?
The MAX20410AFOA/VY+T delivers up to 10A continuous output current under recommended operating conditions (12VIN/5VOUT/400kHz, 4-layer EV kit, TA ≤ +85°C). Derating applies above +85°C ambient per θJA = 28.8°C/W; at +105°C ambient, max output drops to ~6.5A. Peak current capability remains 14A per internal current-limit threshold.
Does the MAX20410AFOA/VY+T support dual-phase operation, and what is required to configure it?
Yes, the MAX20410AFOA/VY+T supports dual-phase operation for up to 20A total output. One IC must be configured as controller (SYNCOUT left open, SYNC driven externally or tied high) and the other as target (SYNCOUT tied to BIAS, SYNC connected to controller's SYNCOUT). VEA pins are connected together, and both ICs share common input/output grounds and feedback networks.
What is the purpose of the windowed PGOOD feature in the MAX20410AFOA/VY+T?
The windowed PGOOD in the MAX20410AFOA/VY+T provides asymmetric rising (102.75%–107.25%) and falling (101.75%–106.25%) thresholds to prevent false triggering during fast load transients. This ensures reliable power-good assertion in safety-critical ADAS applications where brief overvoltage excursions occur during camera sensor startup or ECU reset sequences.
Can the MAX20410AFOA/VY+T operate with a 2.1MHz switching frequency and still achieve low quiescent current?
Yes, the MAX20410AFOA/VY+T achieves 10μA quiescent current in skip mode regardless of selected switching frequency (2.1MHz or 400kHz). However, skip mode disables spread-spectrum and reduces light-load efficiency slightly at 2.1MHz due to higher gate-drive losses; FPWM mode is recommended for 2.1MHz when low-noise regulation is prioritized over IQ.
Is the MAX20410AFOA/VY+T pin-compatible with earlier MAX2040x devices?
Yes, the MAX20410AFOA/VY+T uses the same 17-pin FC2QFN package (F173A3FY+4) and pinout as MAX20408AFOA/VY+T, MAX20408EAFOA/VY+T, and MAX20410EAFOA/VY+T. It is also footprint-compatible with the 4A–6A MAX20404/MAX20405/MAX20406 family, enabling scalable power design across current classes without PCB redesign.
MAX20410AFOA/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)
MAX20410AFOA/VY+T FAQ
1.How can I place an order for MAX20410AFOA/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOA/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 MAX20410AFOA/VY+T reliable?
The price and inventory of MAX20410AFOA/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 MAX20410AFOA/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20410AFOA/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOA/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOA/VY+T?
MAX20410AFOA/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOA/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 MAX20410AFOA/VY+T?
For technical support, including MAX20410AFOA/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOA/VY+T requirements.
6.How does Aetrix verify that MAX20410AFOA/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOA/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 MAX20410AFOA/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20410AFOA/VY+T?
All MAX20410AFOA/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOA/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 MAX20410AFOA/VY+T part is unused and in its original packaging.
Return procedure for MAX20410AFOA/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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