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Analog Devices Inc./Maxim Integrated MAX20006EAFOA/VY+
- Part No.:
- MAX20006EAFOA/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20006EAFOA/VY+.pdf
- Description:
- IC REG BUCK 5V 6A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:521
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Product details
Overview
MAX20006EAFOA/VY+ from Maxim Integrated is a 6A automotive-grade synchronous buck converter with integrated high-side and low-side MOSFETs, 3.5V–36V input range, fixed 3.9V output, and forced-PWM-only operation. It delivers ultra-low 15μA quiescent current in no-load FPWM mode, supports 98% duty-cycle dropout operation, and features RESET monitoring - ideal for automotive navigation head units requiring robust, low-EMI DC/DC conversion.
For engineers reviewing the MAX20006EAFOA/VY+ datasheet, MAX20006EAFOA/VY+ pinout, MAX20006EAFOA/VY+ application, or MAX20006EAFOA/VY+ equivalent, key selection considerations include its FPWM-only constraint (no skip mode), AEC-Q100 qualification, 3.5mm × 3.75mm 17-pin FC2QFN package, ±2% output accuracy, and spread-spectrum enable via SSEN for EMI reduction.
Technical Context
The MAX20006EAFOA/VY+ implements current-mode control with internal compensation and fixed-frequency PWM only - unlike other variants in the family, it lacks skip-mode capability due to its AFOD/VY+ suffix designation. Its 98% maximum duty cycle enables stable operation during automotive cold-crank transients down to 3V input.
It integrates a 5V BIAS LDO that switches to VOUT post-startup under light load, uses a 0.1μF BST capacitor for high-side gate drive, and provides open-drain RESET with 88% falling UV threshold and 10ms hold time - all operating across –40°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous - supports automotive infotainment power rails without external current boosting |
| Input Voltage Range | 3.5V to 36V - accommodates full automotive battery range including cold-crank (3V after startup) |
| Fixed Output Voltage | 3.9V ±2% - factory-trimmed; eliminates external feedback resistors and improves production consistency |
| Quiescent Current | 15μA typical in FPWM mode - enables always-on systems with minimal standby power loss |
| Switching Frequency | 400kHz or 2.1MHz - selectable at factory; enables compact magnetics or EMI-sensitive placement |
| Duty Cycle Max | 98% - maintains regulation during undervoltage transients without dropout-induced reset |
| Protection Features | Overtemperature shutdown (175°C), cycle-by-cycle current limit, overvoltage protection - ensures fault resilience in harsh environments |
Pinout & Package
Package: 3.5mm × 3.75mm 17-pin FC2QFN (F173A3FY+7) with exposed thermal pad (EP) connected to SUPSW pins 3 and 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RESET) | Open-drain reset output | Asserts low when VOUT falls below 88% of nominal; requires external pull-up for system reset signaling |
| 2 (BST) | High-side gate driver supply | Must be decoupled with 0.1μF ceramic capacitor between BST and LX for proper bootstrap charging |
| 3, 9 (SUPSW) | Internal high-side switch supply input | Primary power path for integrated FETs; bypassed with 0.1μF + 4.7μF ceramics to PGND |
| 4, 5, 7, 8 (PGND) | Power ground | All four pins must be shorted on PCB to minimize ground bounce and improve thermal dissipation |
| 6, 17 (LX, OUT) | Switch node / output | LX connects to inductor; OUT supplies internal circuitry when VOUT is 3–5V - shared terminal simplifies layout |
| 10 (SUP) | Voltage supply input | Fused directly to SUPSW; must be routed directly to SUPSW pins with minimal trace length |
| 11 (EN) | Enable input | 3V-compatible logic enable; low = shutdown (5μA IQ); hysteresis prevents chatter near threshold |
| 12 (SYNC) | Synchronization input | FPWM-only: must be tied to BIAS or external clock - grounding disables operation per datasheet warning |
| 13 (BIAS) | Linear regulator output | 5V LDO output; switches to VOUT post-startup in light load to improve efficiency |
| 14 (GND) | Analog ground | Separate from PGND; connects to BIAS capacitor return and FB network for noise immunity |
| 15 (SSEN) | Spread-spectrum enable | Pull high to BIAS to activate ±3% frequency modulation - reduces peak EMI by spreading energy |
| 16 (FB) | Feedback input | Internally connected to BIAS for fixed 3.9V output; not used externally in this variant |
Key Features
| Feature | Design Value |
|---|---|
| Integrated High/Low-Side FETs | Eliminates 4 external MOSFETs and gate drivers - reduces BOM count and layout area by >30% |
| AEC-Q100 Qualified | Rated for automotive Grade-1 (–40°C to +125°C ambient) with 40V load-dump tolerance - meets ISO 7637-2 pulse requirements |
| Forced-PWM Only Operation | Guarantees constant switching frequency - essential for EMI filtering design and avoids audible noise in sensitive audio systems |
| Symmetrical Pinout with SSEN | Enables balanced input capacitor placement and spread-spectrum activation - lowers radiated emissions by up to 10dB |
| Internal Compensation | Removes need for external compensation network - accelerates design cycle and ensures stability across all operating conditions |
Applications
| Navigation Head Units | Radio Control Modules |
|---|---|
Use Scenario: Powering display backlight, microcontroller, and audio codec in automotive center-stack infotainment systems. IC Role / Device Role / Timing Role: Primary 3.9V point-of-load regulator delivering stable 6A rail with fast transient response to dynamic load steps. Use Value: 98% dropout operation sustains output during cold-crank events; RESET signal triggers system-level brownout recovery. | Use Scenario: Supplying RF front-end ICs and digital baseband processors in AM/FM/DAB radio modules. IC Role / Device Role / Timing Role: Fixed-frequency 2.1MHz buck converter minimizing EMI coupling into adjacent RF receivers. Use Value: Spread-spectrum enabled via SSEN reduces peak conducted emissions; FPWM-only mode avoids frequency jitter-induced demodulation artifacts. |
| ADAS Camera Power Rails | Body Control Modules (BCM) |
Use Scenario: Providing clean 3.9V power to image sensors and ISP processors in rear-view and surround-view camera systems. IC Role / Device Role / Timing Role: Automotive-qualified DC/DC with ±2% output accuracy and 15μA IQ - enables always-on vision processing with low thermal footprint. Use Value: Internal BIAS LDO switching to VOUT improves light-load efficiency; thermal shutdown (175°C) protects against enclosure overheating. | Use Scenario: Generating 3.9V rail for microcontrollers, CAN transceivers, and sensor interfaces in door modules and lighting controllers. IC Role / Device Role / Timing Role: Robust step-down converter with overvoltage/short-circuit protection - withstands load-dump and reverse-battery faults. Use Value: 40V load-dump tolerance and –40°C to +150°C junction rating ensure reliability in under-hood and exterior locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20006EAFOE/VY+ | Same 6A rating and 3.9V output, but supports both FPWM and skip modes - higher light-load efficiency at cost of variable frequency | Preferred for battery-backed modules where ultra-low IQ (<15μA) is critical; unsuitable where EMI filtering requires fixed frequency | Select MAX20006EAFOE/VY+ only if skip-mode operation is required and frequency variation is acceptable |
| LM61460QWRNRQ1 | 6A automotive buck with 3.5V–36V input, 3.9V adjustable output, 15μA IQ in FPWM, but no integrated spread-spectrum or RESET output | Requires external feedback resistors and reset supervisor IC; lacks built-in EMI mitigation features | Choose LM61460QWRNRQ1 when board space allows discrete components and RESET is handled elsewhere |
Compared with MAX20006EAFOE/VY+, the MAX20006EAFOA/VY+ trades skip-mode flexibility for guaranteed fixed-frequency operation and tighter EMI control; versus LM61460QWRNRQ1, it integrates RESET, spread-spectrum, and fixed-output trimming - reducing component count and validation effort in automotive infotainment designs.
Availability
MAX20006EAFOA/VY+ is available at Aetrix Electronics and suitable for automotive navigation head units, radio control modules, ADAS camera power rails, and body control modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX20006EAFOA/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.
The MAX2000x series targets automotive power conversion with AEC-Q100 qualification, wide-input operation, and integrated protection - specifically engineered for infotainment, ADAS, and body electronics demanding high reliability and low EMI.
FAQ
What is the maximum duty cycle supported by the MAX20006EAFOA/VY+?
The MAX20006EAFOA/VY+ supports a maximum duty cycle of 98%, enabling operation in dropout mode during automotive cold-crank events where input voltage drops near the output level. This ensures continuous regulation without output collapse, and the device refreshes the BST capacitor every 13.5μs to sustain gate drive integrity under high-duty-cycle conditions.
Does the MAX20006EAFOA/VY+ support skip mode operation?
No, the MAX20006EAFOA/VY+ is FPWM mode only - it does not support skip mode. This is explicitly stated in the datasheet for the AFOD/VY+ variant. Attempting to ground the SYNC pin will disable operation; SYNC must be tied to BIAS or an external clock source to enable forced-PWM switching.
What is the purpose of the SSEN pin on the MAX20006EAFOA/VY+?
The SSEN pin on the MAX20006EAFOA/VY+ enables spread-spectrum modulation when pulled high to BIAS, varying the switching frequency by ±3% to reduce peak EMI emissions. This feature is active only when using the internal oscillator; it is disabled during external synchronization, though any modulation present on the SYNC clock is passed through.
How is the output voltage set on the MAX20006EAFOA/VY+?
The MAX20006EAFOA/VY+ has a factory-trimmed fixed 3.9V output. The FB pin is internally connected to BIAS, eliminating the need for external feedback resistors. This configuration ensures ±2% output accuracy across temperature and line/load conditions without user adjustment.
What thermal protection mechanisms does the MAX20006EAFOA/VY+ include?
The MAX20006EAFOA/VY+ incorporates thermal shutdown at 175°C junction temperature with 15°C hysteresis, allowing automatic recovery once cooled. It also features cycle-by-cycle current limiting and hiccup-mode short-circuit protection - turning off the output for four soft-start periods before retrying - ensuring robustness in sustained overload scenarios.
MAX20006EAFOA/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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 6A
- Frequency - Switching:
- 2.1MHz
- 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)
MAX20006EAFOA/VY+ FAQ
1.How can I place an order for MAX20006EAFOA/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20006EAFOA/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 MAX20006EAFOA/VY+ reliable?
The price and inventory of MAX20006EAFOA/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20006EAFOA/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20006EAFOA/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20006EAFOA/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20006EAFOA/VY+?
MAX20006EAFOA/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20006EAFOA/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 MAX20006EAFOA/VY+?
For technical support, including MAX20006EAFOA/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20006EAFOA/VY+ requirements.
6.How does Aetrix verify that MAX20006EAFOA/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20006EAFOA/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 MAX20006EAFOA/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20006EAFOA/VY+?
All MAX20006EAFOA/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20006EAFOA/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 MAX20006EAFOA/VY+ part is unused and in its original packaging.
Return procedure for MAX20006EAFOA/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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