Analog Devices Inc./Maxim Integrated MAX20006AFOD/VY+
- Part No.:
- MAX20006AFOD/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20006AFOD/VY+.pdf
- Description:
- IC REG BUCK 3.3V 6A 17FC2QFN
- Quantity:
- Payment:

- Shipping:

Inventory:336
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Product details
Overview
MAX20006AFOD/VY+ from Maxim Integrated is a 6A, AEC-Q100 qualified automotive synchronous buck converter with integrated high-side and low-side MOSFETs, 3.5V–36V input range, 25µA no-load quiescent current, 98% max duty cycle, and resistor-programmable switching frequency (220kHz–2.2MHz). It delivers stable 5V or 3.3V fixed output or adjustable 1V–10V output for power management in vehicle infotainment and ADAS modules.
For engineers reviewing the MAX20006AFOD/VY+ datasheet, MAX20006AFOD/VY+ pinout, MAX20006AFOD/VY+ application, or MAX20006AFOD/VY+ equivalent, key selection criteria include its 6A continuous output capability, -40°C to +125°C operation, 40V load-dump tolerance, spread-spectrum EMI reduction option, and FC2QFN 3.5mm × 3.75mm 17-pin package with integrated BIAS LDO and open-drain RESET output.
Technical Context
This current-mode buck controller integrates 38mΩ high-side and 18mΩ low-side MOSFETs, supports forced-PWM and skip modes, and features cycle-by-cycle current limiting, thermal shutdown at 175°C with 15°C hysteresis, and overvoltage protection with 104–110% rising threshold. Its internal 5V BIAS regulator powers control circuitry and transitions to VOUT post-startup for efficiency.
The device uses dual supply inputs (SUP/SUPSW), enables dropout operation down to 3.5V input, and provides precise ±2% output voltage accuracy via 1.00V ±10mV feedback reference. SYNC pin selects FPWM or skip mode, while FOSC sets frequency with external resistor; RESET asserts when VOUT falls below 91% of nominal and holds for 0.2ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous - supports automotive PoL rails requiring robust transient response and thermal margin. |
| Input Voltage Range | 3.5V to 36V - accommodates cold-crank (≥3.5V) and load-dump (≤40V tolerant) conditions per ISO 7637-2. |
| Quiescent Current | 25µA in skip mode - enables always-on systems (e.g., telematics) without battery drain. |
| Switching Frequency | 220kHz to 2.2MHz - allows optimization of inductor size, EMI filtering, and efficiency across operating conditions. |
| Output Voltage Accuracy | ±2% - ensures reliable logic-level compliance for MCU, sensor, and interface ICs powered from VOUT. |
| Duty Cycle Max | 98% - sustains regulation during deep undervoltage transients (e.g., engine start) with minimal dropout. |
| Package | 17-pin FC2QFN, 3.5mm × 3.75mm - compact footprint with exposed thermal pad for automotive PCB space constraints. |
| Temperature Range | -40°C to +125°C junction - certified for under-hood and cabin-mounted automotive applications. |
Pinout & Package
MAX20006AFOD/VY+ is housed in a 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad. The package supports high-power density layout and efficient heat dissipation in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Regulated output & internal supply rail | Delivers 6A DC output; also powers internal circuitry when BIAS is inactive or switched over. |
| 2 RESET | Open-drain reset signal | Asserts low when VOUT drops below 91% of setpoint; requires external pull-up for system reset coordination. |
| 3 BST | High-side gate driver bootstrap supply | Connects 0.1µF capacitor to LX; critical for sustaining high-side MOSFET drive during 98% duty cycle operation. |
| 4,5,7,8 PGND | Power ground return path | Four dedicated pins minimize IR drop and improve current sharing for 6A switching loop integrity. |
| 6 LX | Switch node connection | Direct connection to inductor; carries high di/dt current-requires tight layout to reduce EMI and ringing. |
| 9 SUPSW | High-side switch supply input | Bypassed with 0.1µF + 4.7µF ceramics; supplies gate drivers and power stage independently of analog supply. |
| 10 SUP | Analog supply input | Connected directly to SUPSW; powers internal bias regulator and control logic-must be ≥7.5V for safe EN enable. |
| 11 EN | Enable control input | Logic-compatible with 3.5V–36V automotive battery; toggles device between 5µA shutdown and full operation. |
| 12 SYNC | Mode selection & clock sync input | Ground = skip mode; BIAS/external clock = FPWM; enables EMI control and deterministic frequency behavior. |
| 13 BIAS | 5V linear regulator output | Supplies internal circuitry; switches to VOUT post-startup in 5V-fixed versions to reduce power loss. |
| 14 GND | Analog ground reference | Separate from PGND to isolate noise-sensitive feedback and compensation paths from high-current return. |
| 15 COMP | Error amplifier output | Connect RC network to GND for stability; compensates loop dynamics across 220kHz–2.2MHz frequency range. |
| 16 FB | Feedback voltage input | 1.00V ±10mV reference point; connect to BIAS for 5V/3.3V fixed output or resistive divider for 1V–10V adjustment. |
| 17 FOSC | Frequency programming input | Resistor-to-GND sets fSW; 73.2kΩ = ~400kHz, 12kΩ = ~2.2MHz-enables design flexibility without changing IC. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 38mΩ high-side + 18mΩ low-side MOSFETs eliminate external FETs and gate drivers-reducing BOM count and layout complexity. |
| AEC-Q100 Grade | Qualified to Grade 0 (-40°C to +150°C junction) - meets automotive reliability standards for safety-critical power rails. |
| Spread-Spectrum Option | Factory-enabled ±3% frequency modulation centered on fOSC - reduces peak EMI by spreading energy across spectrum. |
| Load-Dump Tolerance | Withstands 40V transients per ISO 7637-2 Pulse 5a - eliminates need for external TVS on SUP/SUPSW in harsh automotive environments. |
| Fixed Soft-Start | 5ms internal ramp - prevents inrush current damage to input capacitors and downstream loads during cold-start conditions. |
| Reset Monitoring | Programmable UV/OV thresholds (91%/107%) with 0.2ms hold time - enables precise power-good sequencing for microcontrollers and sensors. |
Applications
| Infotainment Head Unit Power | ADAS Camera Module Supply |
|---|---|
|
Use Scenario: Powers SoC, display driver, and audio codec in automotive radio/navigation head units with variable battery input (6V–16V). IC Role / Device Role / Timing Role: Primary 5V/3.3V step-down regulator delivering 6A peak current with low-noise FPWM mode during video processing. Use Value: Maintains regulation during cold-crank (3.5V) and load-dump (40V) events while enabling spread-spectrum EMI reduction for CISPR-25 Class 5 compliance. |
Use Scenario: Supplies image sensor, ISP, and serializer in forward-facing camera modules mounted near engine compartment. IC Role / Device Role / Timing Role: High-efficiency 3.3V PoL converter operating in skip mode during standby and FPWM during active capture. Use Value: 25µA quiescent current extends parking-mode runtime; -40°C to +125°C rating ensures reliability in under-hood thermal cycling. |
| Telematics Control Unit (TCU) | Body Control Module (BCM) Subsystem |
|
Use Scenario: Provides always-on 3.3V rail for LTE modem, GNSS receiver, and secure element in cellular-connected vehicle gateways. IC Role / Device Role / Timing Role: Low-IQ buck converter with RESET output tied to MCU's NMI pin for brownout detection and graceful shutdown. Use Value: 5µA shutdown current preserves battery during extended parking; 98% duty cycle sustains VOUT during engine cranking transients. |
Use Scenario: Generates 5V for CAN transceivers, LIN controllers, and LED drivers in centralized body electronics architecture. IC Role / Device Role / Timing Role: Robust 6A supply with overtemperature and short-circuit protection-monitored via RESET and thermal shutdown. Use Value: Integrated protection eliminates need for external current-sense amplifiers or discrete thermal cutoffs-reducing subsystem cost and failure points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61460-Q1 | 4.5V–36V input, 6A, 2.1MHz max fSW, 15µA IQ, but lacks spread-spectrum and BIAS switchover; uses different pinout. | Preferred for designs prioritizing ultra-low IQ over EMI reduction; requires separate LDO for bias supply. | Select LM61460-Q1 when minimizing no-load consumption is critical and external EMI filtering is acceptable. |
| TPS546B24A | 4.5V–18V input, 10A, PMBus interface, 1.5MHz fSW, but not AEC-Q100 qualified and limited to 18V VIN. | Suitable for non-automotive industrial or computing applications requiring digital control and higher current. | Choose TPS546B24A only for non-automotive use cases where digital telemetry and >6A output are required. |
Compared with LM61460-Q1 and TPS546B24A, MAX20006AFOD/VY+ uniquely combines AEC-Q100 qualification, 36V input support, factory spread-spectrum, and integrated BIAS switchover-making it optimal for cost-sensitive, EMI-constrained automotive PoL designs needing 6A at 5V/3.3V.
Availability
MAX20006AFOD/VY+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, telematics control units, and body control module subsystems requiring stable component supply with long lifecycle assurance.
Supply support for MAX20006AFOD/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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
MAX20006AFOD/VY+ belongs to the MAX2000x family of fully integrated automotive buck converters engineered specifically for demanding vehicle electrical systems requiring high efficiency, small footprint, and AEC-Q100 reliability.
FAQ
What is the maximum continuous output current of the MAX20006AFOD/VY+?
The MAX20006AFOD/VY+ delivers up to 6A continuous output current under typical thermal conditions (TA ≤ 70°C, four-layer board, 2.2MHz switching). Actual achievable current depends on PCB layout, ambient temperature, and switching frequency-refer to the TJ_RISE vs. IOUT curves in the datasheet for derating guidance.
Does the MAX20006AFOD/VY+ support adjustable output voltage?
Yes, the MAX20006AFOD/VY+ supports both fixed 3.3V/5.0V outputs (by connecting FB to BIAS) and adjustable 1V–10V outputs using an external resistive divider from OUT to FB. The feedback reference is precisely 1.00V ±10mV, enabling accurate regulation across the full range.
How does the RESET output function on the MAX20006AFOD/VY+?
The MAX20006AFOD/VY+ features an open-drain RESET output that asserts low when VOUT falls below 91% of its nominal value and deasserts after VOUT rises above 107% with a 0.2ms hold time. An external pull-up resistor is required to generate a logic-high signal for microcontroller reset coordination.
Can the MAX20006AFOD/VY+ operate during automotive cold-crank conditions?
Yes, the MAX20006AFOD/VY+ operates down to 3.5V input and supports 98% maximum duty cycle, enabling sustained regulation during cold-crank transients. Its dual SUP/SUPSW inputs and internal BIAS LDO ensure stable startup and control even when input dips below the output voltage.
Is spread-spectrum switching enabled by default on the MAX20006AFOD/VY+?
No, spread-spectrum switching is a factory-programmed option-not enabled by default. The MAX20006AFOD/VY+ variant must be ordered with the spread-spectrum feature (e.g., MAX20006AFOD/VY+T) to activate ±3% frequency modulation; standard parts operate at fixed fOSC.
MAX20006AFOD/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 6A
- Frequency - Switching:
- 220kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-FC2QFN (3.5x3.75)
MAX20006AFOD/VY+ FAQ
1.How can I place an order for MAX20006AFOD/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20006AFOD/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 MAX20006AFOD/VY+ reliable?
The price and inventory of MAX20006AFOD/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20006AFOD/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20006AFOD/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20006AFOD/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20006AFOD/VY+?
MAX20006AFOD/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20006AFOD/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 MAX20006AFOD/VY+?
For technical support, including MAX20006AFOD/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20006AFOD/VY+ requirements.
6.How does Aetrix verify that MAX20006AFOD/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20006AFOD/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 MAX20006AFOD/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20006AFOD/VY+?
All MAX20006AFOD/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20006AFOD/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 MAX20006AFOD/VY+ part is unused and in its original packaging.
Return procedure for MAX20006AFOD/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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