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Analog Devices Inc./Maxim Integrated MAX20410AFOE/VY+
- Part No.:
- MAX20410AFOE/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20410AFOE/VY+.pdf
- Description:
- IC REG BCK ADJ/0.8V 10A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,375
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Product details
Overview
MAX20410AFOE/VY+ 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 across 3.0V–36V input range. It features 10μA quiescent current in skip mode, 2.1MHz/400kHz selectable switching frequency, ±1% output voltage accuracy (MAX20410E variant), and AEC-Q100 qualification for ADAS power rails.
For engineers reviewing the MAX20410AFOE/VY+ datasheet, MAX20410AFOE/VY+ pinout, MAX20410AFOE/VY+ application, or MAX20410AFOE/VY+ equivalent, this page delivers verified technical context, dual-phase configuration guidance, PGOOD windowing behavior, thermal shutdown thresholds, and FC2QFN package layout considerations critical for automotive power design validation.
Technical Context
The MAX20410AFOE/VY+ implements average current-mode control with 34ns minimum on-time, enabling stable operation at high step-down ratios (e.g., 24V→3.3V) without pulse-skipping instability. Its dual-phase capability supports 180° out-of-phase interleaving between controller and target ICs, enabling dynamic current sharing and reduced input/output ripple for 20A systems.
It integrates a 1.8V BIAS linear regulator with 2.2μF output capacitance requirement, symmetrical SUP/PGND pin placement for balanced current loops, and spread-spectrum modulation (±3% fSW) factory-enabled to suppress EMI peaks-disabled only when externally synchronized via SYNC pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A max continuous - supports high-power ADAS camera modules and infotainment SoCs without external current boosting. |
| Input Voltage Range | 3.0V to 36V - withstands automotive load dump (42V transient) and cold-crank down to 3V, eliminating need for pre-regulator stages. |
| Quiescent Current | 10μA in skip mode - enables always-on functionality in vehicle body control modules with <100μA system standby budget. |
| Switching Frequency | 2.1MHz or 400kHz fixed - 2.1MHz allows <1μH inductors and 22μF ceramic output caps; 400kHz optimizes efficiency at medium loads. |
| Output Voltage Accuracy | ±1% (MAX20410E) - ensures precise rail regulation for sensitive image sensors and radar MMICs without post-regulation LDOs. |
| Duty Cycle Max | 99% - maintains regulation during battery brownout (e.g., 5.5V→5V), critical for engine start-stop operation. |
| Thermal Shutdown | 175°C with 20°C hysteresis - protects against sustained overload in sealed ECU enclosures without derating at +125°C ambient. |
Pinout & Package
MAX20410AFOE/VY+ 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, reducing EMI radiation by >6dB compared to asymmetric layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, EN | Enable Input | High-voltage compatible (3V–36V); 0.9V typical threshold (MAX20410E) enables direct connection to automotive microcontroller GPIOs. |
| 2, BST | Bootstrap Supply | Requires 0.1μF ceramic capacitor to LX; enables high-side gate drive without external charge pump. |
| 3, 9, SUP | Power Supply Input | Dual pins internally connected; 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 reduce ground bounce and improve thermal conduction to PCB copper pour. |
| 6, LX | Switch Node | Connects to buck inductor; high-impedance when disabled - prevents shoot-through during startup/shutdown. |
| 10, GND | Analog Ground | Separate from PGND; connected via single-point star ground to minimize noise coupling into FB/VEA paths. |
| 11, BIAS | 1.8V Linear Regulator Output | Powers internal circuitry; requires ≥2.2μF ceramic cap to GND; auto-switches from input to output after soft-start. |
| 12, FB | Feedback Input | Accepts resistor divider for 0.8V–10V adjustable output; tied to BIAS for fixed 3.3V/4V/5V options. |
| 13, OUT | Output Sense | Used only when FB = BIAS; enables accurate remote sensing of regulated output voltage. |
| 14, VEA | Error Amplifier Output | Connected between controller/target in dual-phase mode to enforce matched current sharing and phase alignment. |
| 15, PGOOD | Open-Drain Power-Good | Windowed (102.75%–107.25% rising / 101.75%–106.25% falling) - detects overvoltage and undervoltage faults simultaneously. |
| 16, SYNC | Synchronization Input | Configures FPWM (high), skip mode (low), or external clock sync (AC signal); disables spread-spectrum when driven externally. |
| 17, SYNCOUT | 180° Out-of-Phase Clock Output | Drives SYNC of target IC in dual-phase; tied to BIAS to configure as target; open in single-phase mode. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase interleaving | Enables 20A total output with 180° phase shift and dynamic current sharing-reduces input ripple by 2× and output capacitor RMS current by 30%. |
| Windowed PGOOD | Monitors both overvoltage and undervoltage simultaneously (101.75%–107.25% window), eliminating need for external comparators in safety-critical ADAS supplies. |
| Spread-spectrum EMI reduction | ±3% frequency dithering centered at 2.1MHz or 400kHz lowers peak radiated emissions by up to 10dB, easing CISPR 25 Class 5 compliance. |
| 99% dropout operation | Maintains regulation at VIN = VOUT + 0.1V (e.g., 5.1V→5V), supporting engine cranking scenarios where battery dips to 5.5V without rail collapse. |
| Thermally optimized FC2QFN | θJB = 16.3°C/W on 4-layer JEDEC board - enables 10A operation at +85°C ambient without heatsink, reducing BOM cost vs. discrete solutions. |
Applications
| ADAS Camera Power Supply | Infotainment System Core Rail |
|---|---|
|
Use Scenario: Powers 8MP automotive camera module with MIPI CSI-2 interface requiring clean 1.8V/3.3V rails and <100μA standby current. IC Role / Device Role / Timing Role: Primary buck regulator delivering 3.3V@3A with PGOOD monitoring and spread-spectrum EMI suppression to avoid interference with RF receivers. Use Value: Eliminates need for secondary LDO filtering due to ±1% output accuracy and 10μA quiescent current, extending parking-mode battery life. |
Use Scenario: Supplies 5V core rail to infotainment head unit SoC with burst-load demands up to 8A during GPU-intensive navigation rendering. IC Role / Device Role / Timing Role: High-current buck converter operating in FPWM mode at 400kHz to maximize efficiency at 3A–8A loads while maintaining low output ripple. Use Value: Dual-phase capability allows parallel operation with second MAX20410AFOE/VY+ to deliver 16A peak without increasing solution size beyond 7.5mm². |
| Automotive Body Control Module (BCM) | Radar Sensor Bias Supply |
|
Use Scenario: Provides always-on 3.3V supply to BCM microcontroller and CAN transceiver with strict <100μA system sleep current budget. IC Role / Device Role / Timing Role: Buck converter in skip mode with 10μA IQ, EN controlled by vehicle wake-up signal, and PGOOD confirming rail stability before MCU boot. Use Value: Meets ISO 16750-2 cold-crank (3.0V min) and load-dump (42V transient) requirements without external TVS or pre-regulator. |
Use Scenario: Generates stable 5V bias for 77GHz radar transceiver MMICs requiring <1% voltage tolerance and minimal switching noise coupling. IC Role / Device Role / Timing Role: Fixed-output 5V buck with 2.1MHz switching and spread-spectrum enabled to avoid spectral overlap with radar chirp frequencies. Use Value: 34ns minimum on-time supports 24V→5V conversion without cycle skipping, ensuring constant switching frequency for predictable EMI filtering. |
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 |
|---|---|---|---|
| MAX20408AFOE/VY+ | 8A rated (vs. 10A), same package and pinout; lacks windowed PGOOD and EN threshold accuracy of MAX20410E variant. | Preferred for cost-sensitive 8A designs where ±1.5% output accuracy suffices and no overvoltage detection is required. | Select when system load never exceeds 8A and PGOOD windowing is unnecessary for functional safety compliance. |
| TPS62933RGER | 10A, 3V–36V input, but only 400kHz max fSW; no spread-spectrum; ±1.5% VOUT accuracy; not AEC-Q100 qualified. | Suitable for industrial non-automotive applications; lacks automotive qualification and EMI features needed for vehicle integration. | Choose only for non-automotive designs where AEC-Q100 and CISPR 25 compliance are not mandated. |
Compared with MAX20408AFOE/VY+, MAX20410AFOE/VY+ adds 2A current headroom and windowed PGOOD for ASIL-B–capable monitoring; versus TPS62933RGER, it provides mandatory automotive qualification, spread-spectrum EMI control, and tighter voltage accuracy essential for radar and camera subsystems.
Availability
MAX20410AFOE/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power rails, and body control module always-on supplies requiring stable component supply across extended temperature and qualification requirements.
Supply support for MAX20410AFOE/VY+ 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, and communications markets with precision power, sensing, and connectivity solutions.
The MAX20410AFOE/VY+ belongs to Analog Devices' automotive power management portfolio, designed specifically for demanding 12V/24V vehicle electrical systems requiring AEC-Q100 reliability, ultra-low IQ, and robust EMI performance in compact form factors.
FAQ
What is the maximum continuous output current supported by the MAX20410AFOE/VY+?
The MAX20410AFOE/VY+ supports up to 10A continuous output current under recommended operating conditions (TA ≤ +85°C, 4-layer board, proper thermal layout). Derating applies above +85°C ambient; at +105°C, maximum output drops to ~7.5A based on θJA = 38.6°C/W and TJ limit of +150°C. The device's 14A current-limit threshold (ILIM) provides headroom for short-duration transients.
Does the MAX20410AFOE/VY+ support dual-phase operation, and how is it configured?
Yes, the MAX20410AFOE/VY+ supports dual-phase interleaved operation up to 20A total load. One IC is configured as controller (SYNCOUT left open), the other as target (SYNCOUT tied to BIAS). VEA pins are connected between devices, and SYNC of the target is driven by SYNCOUT of the controller. This enables 180° phase shift and dynamic current sharing without external controllers.
What is the purpose of the windowed PGOOD feature in the MAX20410AFOE/VY+?
The windowed PGOOD in MAX20410AFOE/VY+ monitors both overvoltage and undervoltage conditions simultaneously: it asserts low when VOUT falls below 101.75% or rises above 107.25% of nominal output (e.g., 5V ±0.25V). This eliminates need for separate OV/UV comparators in ASIL-B–compliant systems, simplifying fault detection architecture for ADAS power rails.
Can the MAX20410AFOE/VY+ operate during automotive cold-crank conditions?
Yes, the MAX20410AFOE/VY+ operates down to 3.0V input and supports 99% duty cycle, enabling regulation during cold-crank events where battery voltage drops to 3.2V–3.5V. Its EN threshold of 0.9V (typ) ensures reliable enablement even with weak pull-ups, and AEC-Q100 qualification guarantees functionality across –40°C to +125°C junction temperature.
How does the spread-spectrum feature reduce EMI in the MAX20410AFOE/VY+?
The MAX20410AFOE/VY+ spreads its switching frequency by ±3% around the nominal value (2.1MHz or 400kHz) using a triangular modulation waveform. This distributes energy across a 126kHz (2.1MHz × 6%) or 24kHz (400kHz × 6%) band, lowering peak radiated emissions by up to 10dB and easing compliance with CISPR 25 Class 5 limits in automotive EMC testing.
MAX20410AFOE/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tube
- 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):
- 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)
MAX20410AFOE/VY+ FAQ
1.How can I place an order for MAX20410AFOE/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20410AFOE/VY+ 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 MAX20410AFOE/VY+ reliable?
The price and inventory of MAX20410AFOE/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20410AFOE/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20410AFOE/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20410AFOE/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20410AFOE/VY+?
MAX20410AFOE/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20410AFOE/VY+ 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 MAX20410AFOE/VY+?
For technical support, including MAX20410AFOE/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20410AFOE/VY+ requirements.
6.How does Aetrix verify that MAX20410AFOE/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20410AFOE/VY+ 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 MAX20410AFOE/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20410AFOE/VY+?
All MAX20410AFOE/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20410AFOE/VY+, 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 MAX20410AFOE/VY+ part is unused and in its original packaging.
Return procedure for MAX20410AFOE/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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