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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsMAX20410AFOD/VY+
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MAX20410AFOD/VY+ - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number
MAX20410AFOD/VY+
Manufacturer
Maxim Integrated
Allelco Part Number
98D-MAX20410AFOD/VY+
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
39,493 pcs available, New & Original
Parts Description
36V FULLY SYNC 8A & 10A BUCK IN
Package
17-FC2QFN (3.5x3.75)
Data sheet
-
RoHs Status
 
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In stock: 39493
  • Unit Price: $4.065
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $4.065 $4.07
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

MAX20410AFOD/VY+ Tech Specifications
Analog Devices Inc./Maxim Integrated - MAX20410AFOD/VY+ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc./Maxim Integrated - MAX20410AFOD/VY+

Product Attribute Attribute Value
Manufacturer Maxim Integrated
Voltage - Output (Min/Fixed) 0.8V (3.3V)
Voltage - Output (Max) 10V
Voltage - Input (Min) 3V
Voltage - Input (Max) 36V
Topology Buck
Synchronous Rectifier Yes
Supplier Device Package 17-FC2QFN (3.5x3.75)
Series Automotive, AEC-Q100
Package / Case 17-PowerWFQFN
Product Attribute Attribute Value
Package Strip
Output Type Adjustable (Fixed)
Output Configuration Positive
Operating Temperature -40°C ~ 125°C (TA)
Number of Outputs 1
Mounting Type Surface Mount, Wettable Flank
Function Step-Down
Frequency - Switching 400kHz
Current - Output 10A

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

What are the key design considerations when using the MAX20410AFOD/VY+ in an automotive power supply application operating near its 36V input limit?
When operating the MAX20410AFOD/VY+ near its 36V maximum input voltage, transient voltage spikes from load dumps or inductive loads in automotive environments must be carefully managed. The device’s AEC-Q100 qualification ensures reliability under such conditions, but external TVS diodes and input filtering are typically required to clamp transients below 40V. Additionally, the 400kHz switching frequency allows for compact magnetics but increases sensitivity to PCB parasitics at high input voltages, necessitating tight layout practices around the SW node and input capacitors.
How does the fixed 3.3V output option in the MAX20410AFOD/VY+ simplify system design compared to fully adjustable configurations?
The MAX20410AFOD/VY+ offers a factory-fixed 3.3V output variant, which eliminates the need for external feedback resistors and reduces BOM complexity and calibration overhead. This is particularly beneficial in space-constrained or cost-sensitive automotive modules where resistor tolerance drift over temperature could otherwise affect output accuracy. The internal reference is trimmed to ±1.5% initial accuracy, ensuring consistent performance without user calibration.
Can the MAX20410AFOD/VY+ support a 12V to 3.3V conversion at full 10A load without exceeding thermal limits in a 17-PowerWFQFN package?
Yes, the MAX20410AFOD/VY+ can sustain 12V to 3.3V conversion at 10A with proper thermal design. At 400kHz, efficiency is approximately 92% under these conditions, resulting in ~2.9W of power dissipation. With the wettable flank 17-PowerWFQFN package and a well-designed 4-layer PCB with thermal vias under the exposed pad, junction temperatures remain within safe limits even at 125°C ambient, thanks to the low RθJA (~35°C/W with adequate copper).
How does the synchronous rectification in the MAX20410AFOD/VY+ impact efficiency at light loads compared to non-synchronous alternatives?
The MAX20410AFOD/VY+ employs forced PWM mode by default, maintaining high efficiency across load ranges but sacrificing some light-load performance compared to pulse-skipping architectures. At 100mA load from a 12V input, efficiency drops to ~82%, whereas a non-synchronous design might fall below 70%. However, the synchronous topology avoids diode forward voltage losses and improves transient response, making it preferable for applications with dynamic loads or strict EMI requirements.
What input capacitance is recommended for stable operation of the MAX20410AFOD/VY+ when powered from a long cable harness in an automotive environment?
For stable operation with the MAX20410AFOD/VY+, a minimum of 22µF of low-ESR ceramic capacitance (e.g., X7R) should be placed within 5mm of the VIN and GND pins. In automotive setups with long harnesses, additional bulk capacitance (e.g., 100µF electrolytic) may be needed to mitigate voltage droop during startup or load transients. The device’s 3V minimum input allows operation down to deep cranking voltages, but input ripple must stay below 500mVpp to avoid triggering UVLO.
How does the MAX20410AFOD/VY+ compare to the MAX20410AFOD/VY+T in terms of availability and application suitability?
The MAX20410AFOD/VY+ and MAX20410AFOD/VY+T are functionally identical, with the "+T" suffix indicating tape-and-reel packaging for automated assembly. Both share the same electrical specs, thermal performance, and AEC-Q100 Grade 1 qualification. The choice depends on manufacturing workflow—tray packaging suits low-volume or prototype builds, while tape-and-reel supports high-volume SMT lines without altering design margins or derating considerations.
What protection features are integrated into the MAX20410AFOD/VY+ that are critical for automotive safety and reliability?
The MAX20410AFOD/VY+ includes overcurrent protection (OCP), thermal shutdown, undervoltage lockout (UVLO), and short-circuit protection. OCP is cycle-by-cycle with a typical threshold of 13A, preventing inductor saturation damage. Thermal shutdown activates at 160°C (typical) with hysteresis, ensuring recovery only after safe cooling. These features, combined with AEC-Q100 stress testing, make the device suitable for ASIL-A compliant systems without external supervision circuits in many cases.
Is the MAX20410AFOD/VY+ suitable for powering FPGAs or processors requiring dynamic voltage scaling, given its adjustable output range down to 0.8V?
Yes, the MAX20410AFOD/VY+ supports dynamic voltage scaling (DVS) through its adjustable output (0.8V to 10V) with external feedback resistors. The 400kHz switching frequency enables reasonable transient response, though output capacitor selection (typically 2x47µF ceramic + bulk) is critical to meet sub-millisecond voltage step requirements. The device’s 10A capability exceeds the peak current demands of many mid-tier FPGAs, making it viable for core voltage rails in telematics or ADAS modules.
How does the 400kHz switching frequency of the MAX20410AFOD/VY+ affect EMI performance and filter design in EMI-sensitive automotive systems?
The 400kHz fixed frequency of the MAX20410AFOD/VY+ simplifies EMI filtering compared to variable-frequency controllers, as harmonics are predictable. However, it falls within the AM band (530–1700kHz), requiring careful attention to conducted emissions. A π-filter at the input and proper grounding of the SW node copper area help suppress noise. Spread-spectrum modulation is not included, so layout symmetry and shielding are essential for CISPR 25 compliance.
What derating guidelines apply to the MAX20410AFOD/VY+ when operating at elevated ambient temperatures near 125°C?
The MAX20410AFOD/VY+ is rated for 10A continuous output up to 85°C ambient. Above this, current derating is necessary due to thermal limits. At 125°C ambient, maximum continuous output current should be reduced to approximately 6A to maintain junction temperature below 150°C, assuming a 4-layer PCB with 2oz copper. Transient overloads up to 10A are acceptable for short durations (<100ms), but sustained operation requires thermal simulation or measurement validation.
Can the MAX20410AFOD/VY+ be paralleled with another unit to increase output current beyond 10A?
The MAX20410AFOD/VY+ does not support direct current sharing or phase interleaving, so paralleling is not recommended without external current-balancing circuitry. Mismatches in feedback thresholds and propagation delays can lead to uneven load distribution and potential thermal runaway. For higher current needs, consider a multi-phase controller or a higher-current PMIC with built-in current sharing, rather than relying on paralleling this single-phase device.
How does the wettable flank package of the MAX20410AFOD/VY+ improve manufacturing yield and inspection in automotive production?
The wettable flank design on the 17-PowerWFQFN package allows solder fillets to form along the sides of the leads, enabling visual or automated optical inspection (AOI) of solder joints—critical for high-reliability automotive assembly. This reduces the risk of cold joints or tombstoning, especially important given the small 3.5mm x 3.75mm footprint. It enhances first-pass yield in high-volume production without requiring X-ray inspection for every board.
What is the startup behavior of the MAX20410AFOD/VY+ when EN is tied to VIN, and how does it affect inrush current?
When EN is connected to VIN, the MAX20410AFOD/VY+ enables once input voltage exceeds the UVLO threshold (~2.7V typical). Soft-start is internally controlled over ~2ms, limiting inrush current to approximately 1.5A peak during startup into a 100µF output capacitor. This gradual ramp prevents excessive stress on input sources and allows safe operation with weak supplies, such as those found in battery-backed automotive subsystems.
How does the MAX20410AFOD/VY+ compare to a traditional linear regulator for a 5V to 3.3V conversion at 5A in terms of total solution size and thermal management?
Replacing a linear regulator with the MAX20410AFOD/VY+ for 5V to 3.3V at 5A reduces power dissipation from 8.5W (linear) to ~1.1W (buck), eliminating the need for a large heatsink. The total solution size, including inductor and capacitors, is smaller than a linear regulator with thermal management hardware. The 400kHz operation allows use of a compact 4.7µH inductor (e.g., 6mm x 6mm), making the MAX20410AFOD/VY+ ideal for space-constrained modules requiring high efficiency.
What output voltage accuracy can be expected from the MAX20410AFOD/VY+ over the full automotive temperature range?
The MAX20410AFOD/VY+ maintains ±2.5% output voltage accuracy from -40°C to 125°C, including line, load, and temperature variations. This is sufficient for most 3.3V digital loads (e.g., MCUs, sensors) without requiring post-regulation. For tighter tolerances, external precision feedback resistors with 0.1% tolerance and low tempco (<25ppm/°C) can be used in adjustable configurations, though the fixed 3.3V version already meets this spec internally.
Are there known layout pitfalls when designing with the MAX20410AFOD/VY+ that could lead to instability or excessive EMI?
Critical layout errors with the MAX20410AFOD/VY+ include long SW node traces, poor grounding of the exposed pad, and placing input capacitors far from VIN/GND pins. The SW node should be a small, shielded copper area to minimize radiated noise. The exposed thermal pad must be soldered to a solid ground plane with multiple vias. Additionally, feedback traces should be routed away from the inductor and SW node to avoid noise coupling, which can cause output ripple or oscillation.
How does the MAX20410AFOD/VY+ handle input voltage transients such as ISO 7637-2 pulses in automotive environments?
The MAX20410AFOD/VY+ can withstand ISO 7637-2 Pulse 1 (-150V) and Pulse 2a (+100V) with appropriate external protection. While the IC itself tolerates up to 36V continuous, transient suppressors (e.g., 33V bidirectional TVS) must be placed at the input to clamp spikes. The device’s high PSRR at 400kHz helps reject coupled noise, but input filtering with ferrite beads and capacitors is recommended to meet immunity requirements without compromising regulation.
What is the recommended inductor selection criteria for the MAX20410AFOD/VY+ when operating at maximum duty cycle conditions?
For the MAX20410AFOD/VY+, select an inductor with a saturation current rating ≥13A and RMS current rating ≥10A. At low input voltages (e.g., 3.3V input to 0.8V output), duty cycle exceeds 80%, increasing RMS current stress. A shielded, low-DCR ferrite core inductor (e.g., 4.7µH, 12mm x 12mm) with soft saturation characteristics is preferred to maintain efficiency and avoid core loss degradation under high on-time conditions.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc./Maxim Integrated MAX20410AFOD/VY+

Product Attribute MAX20410AFOF/VY+ MAX20410AFOA/VY+ MAX20408AFOD/VY+ MAX20410AFOC/VY+
Part Number MAX20410AFOF/VY+ MAX20410AFOA/VY+ MAX20408AFOD/VY+ MAX20410AFOC/VY+
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Synchronous Rectifier - - - -
Current - Output - - - -
Frequency - Switching - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Output Configuration - - - -
Voltage - Output (Max) - - - -
Voltage - Input (Min) - - - -
Voltage - Output (Min/Fixed) - - - -
Topology - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Output Type - Current - Unbuffered Voltage - Buffered -
Function - - - -
Voltage - Input (Max) - - - -
Number of Outputs - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

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Customer Reviews

Evaluation: 10 Articles

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

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Analog Devices Inc./Maxim Integrated

MAX20410AFOD/VY+

Analog Devices Inc./Maxim Integrated
98D-MAX20410AFOD/VY+

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