My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX20006EAFOB/VY+
- Part No.:
- MAX20006EAFOB/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20006EAFOB/VY+.pdf
- Description:
- IC REG BUCK 3.3V 6A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,453
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX20006EAFOB/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 stable power to infotainment subsystems under cold-crank conditions using 98% dropout duty cycle and features open-drain RESET monitoring for system-level fault detection.
For engineers reviewing the MAX20006EAFOB/VY+ datasheet, MAX20006EAFOB/VY+ pinout, MAX20006EAFOB/VY+ application, or MAX20006EAFOB/VY+ equivalent, key selection criteria include AEC-Q100 qualification, 400kHz/2.1MHz selectable switching frequency, ±2% output accuracy, 15μA no-load quiescent current in FPWM mode, and FC2QFN-17 package thermal performance (θJA = 38.8°C/W).
Technical Context
The MAX20006EAFOB/VY+ implements current-mode control with internal compensation, enabling fast transient response without external loop components. Its fixed 3.9V output is factory-trimmed and selected via FB-to-BIAS connection-no external resistor divider required.
It operates exclusively in forced-PWM (FPWM) mode (no skip mode), synchronized via SYNC pin to external clocks (300kHz–2.6MHz) or internal oscillator. Protection includes cycle-by-cycle current limiting (10A typ), thermal shutdown at 175°C with 15°C hysteresis, 40V load-dump tolerance, and overvoltage protection with 107% rising threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous; supports automotive ECU power rails requiring robust DC-DC conversion without external current-sense amplifiers. |
| Input Voltage Range | 3.5V to 36V (3V after startup); sustains regulation during automotive cold-crank (4.5V) and load-dump (40V tolerant) transients. |
| Output Voltage | Fixed 3.9V ±2%; eliminates need for feedback resistors and ensures consistent rail for microcontroller I/O or display biasing. |
| Quiescent Current | 15μA typical in FPWM mode; enables always-on subsystems (e.g., CAN wake-up logic) with minimal battery drain. |
| Switching Frequency | Factory-set 400kHz or 2.1MHz; allows compact magnetics (e.g., 1μH inductor at 2.1MHz) while avoiding AM-band EMI. |
| Duty Cycle Max | 98% typical; maintains regulation down to VIN ≈ VOUT / 0.98, critical for 5V-to-3.9V conversion during low-battery events. |
| Operating Temp | −40°C to +125°C ambient; junction-rated to +150°C, validated for under-hood placement per AEC-Q100 Grade 1. |
Pinout & Package
MAX20006EAFOB/VY+ uses a 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed pad (EP) connected to SUPSW. The symmetrical layout supports balanced high-frequency input capacitor placement for EMI reduction.
| 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 MCU reset signaling. |
| 2 (BST) | Bootstrap supply for high-side gate driver | Must be decoupled with 0.1μF ceramic between BST and LX; enables 100% duty-cycle capability in dropout. |
| 3, 9 (SUPSW) | High-side switch supply input | Primary power path for internal FETs; bypassed with 0.1μF + 4.7μF ceramics close to pins. |
| 4, 5, 7, 8 (PGND) | Power ground | All four PGND pins must be tied together with low-inductance copper pour to minimize switching noise coupling. |
| 6, 17 (LX) | Switch node | Connects directly to inductor; shared pin pair reduces trace inductance and improves efficiency at 6A. |
| 10 (SUP) | Bias regulator input | Fused internally to SUPSW; must be shorted to SUPSW externally to avoid voltage drop and startup failure. |
| 11 (EN) | Enable input | Logic-compatible with 3V–14V automotive battery; 2.4V threshold ensures reliable turn-on during cranking. |
| 12 (SYNC) | Mode/frequency control | Must be tied to BIAS (not GND) - grounding disables operation since FPWM-only mode forbids skip mode. |
| 13 (BIAS) | Internal LDO output | 5V regulated supply for internal circuitry; switches to VOUT post-startup for efficiency, but remains stable at 3.9V output. |
| 14 (GND) | Analog ground | Separate from PGND; connects to clean ground plane for error amplifier and feedback reference stability. |
| 15 (SSEN) | Spread-spectrum enable | Pull high to BIAS to reduce peak EMI by ±3% frequency modulation; disabled if SYNC is driven externally. |
| 16 (FB) | Feedback input | Internally connected to BIAS for fixed 3.9V; no external divider needed - simplifies layout and improves accuracy. |
| EP | Exposed thermal pad | Must be soldered to SUPSW-connected copper area; accounts for >80% of thermal conduction to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C) qualification ensures reliability in automotive powertrain and body electronics. |
| Integrated High/Low-Side FETs | Reduces BOM count by eliminating external MOSFETs and drivers; high-side RDS(on) = 76mΩ max, low-side = 36mΩ max. |
| Internal Compensation | Eliminates external compensation network; achieves <10μs load-step recovery time without tuning effort. |
| 98% Dropout Operation | Maintains regulation during 5V input dips to 4.0V (for 3.9V output), preventing brownout resets in navigation head units. |
| 40V Load-Dump Tolerance | Withstands ISO 7637-2 Pulse 5a transients without external TVS, reducing protection component cost and board space. |
Applications
| Navigation Head Unit Power | Automotive Radio Core Supply |
|---|---|
Use Scenario: Powers LCD backlight controller and audio DSP in centralized infotainment head units subjected to 12V battery fluctuations. IC Role / Device Role / Timing Role: Primary 3.9V buck regulator delivering 6A peak current with tight line/load regulation (±0.02%/V, 0.2%) to maintain display contrast and audio SNR. Use Value: Fixed 3.9V output eliminates calibration drift; RESET signal triggers safe shutdown before MCU brownout during cold-crank. | Use Scenario: Supplies RF front-end and digital baseband ICs in AM/FM/HD radio modules operating near engine bay heat sources. IC Role / Device Role / Timing Role: High-efficiency step-down converter running at 2.1MHz to avoid AM band interference while sustaining 6A under thermal stress. Use Value: 98% duty cycle preserves output during 6V cranking events; AEC-Q100 qualification guarantees 15,000-hour MTBF at 125°C ambient. |
| ADAS Camera ECU Power | Body Control Module (BCM) Subsystem |
Use Scenario: Provides clean 3.9V rail to image sensor interface and ISP in rear-view camera ECUs mounted in hot trunk environments. IC Role / Device Role / Timing Role: Automotive-qualified DC-DC with integrated FETs and thermal shutdown (175°C) prevents thermal runaway during summer parking. Use Value: 15μA FPWM quiescent current extends battery life in always-on camera wake-up mode; spread spectrum (SSEN) lowers radiated emissions for CISPR 25 Class 5 compliance. | Use Scenario: Powers CAN transceiver, door lock MCU, and LED driver ICs in distributed BCM nodes across vehicle chassis. IC Role / Device Role / Timing Role: Robust 36V-input buck converter handling load-dump pulses (40V) and reverse-battery transients without external protection. Use Value: Symmetrical SUP pinout enables dual 0603 input caps for <10mVpp ripple; PGND/GND separation minimizes CAN bus ground noise coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61460-Q1 | 40V max input, 6A, 500kHz–2.2MHz adjustable frequency, supports PFM/PWM modes; no integrated spread spectrum. | Broader VIN range (3V–40V); lacks pin-selectable spread spectrum and fixed 3.9V option - requires external feedback. | Select when adjustable output or wider input range is prioritized over EMI optimization and layout simplicity. |
| TPS546B24A | 40V max input, 6A, PMBus-enabled, 400kHz–2.2MHz sync, ±0.5% output accuracy; requires external compensation. | Digital interface enables real-time telemetry (VOUT, IOUT, temperature); higher precision but adds firmware complexity and external components. | Select when system-level monitoring and dynamic margining are required, not just fixed-rail generation. |
Compared with LM61460-Q1 and TPS546B24A, the MAX20006EAFOB/VY+ offers superior EMI control via integrated spread spectrum and simpler implementation with fixed 3.9V output and internal compensation - ideal for cost-sensitive, high-volume automotive modules where design-in time and layout reliability are critical.
Availability
MAX20006EAFOB/VY+ is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera ECUs, body control modules, and navigation head units requiring stable component supply with AEC-Q100 assurance and long-term production continuity.
Supply support for MAX20006EAFOB/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 high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets with emphasis on power efficiency and reliability.
The MAX20006EAFOB/VY+ belongs to the MAX2000xE automotive buck converter family, engineered specifically for demanding 12V/24V vehicle systems requiring high integration, ultra-low IQ, and AEC-Q100 compliance without external loop compensation.
FAQ
What is the maximum input voltage the MAX20006EAFOB/VY+ can withstand during load-dump events?
The MAX20006EAFOB/VY+ is rated for 40V load-dump tolerance per ISO 7637-2 Pulse 5a, meaning it can survive transient overvoltages up to 40V without damage or latch-up. This specification is validated across the full −40°C to +125°C operating temperature range and eliminates the need for external TVS diodes in most automotive front-end designs. The device's internal protection circuitry clamps and dissipates energy during such events while maintaining regulation on the 3.9V output rail.
Does the MAX20006EAFOB/VY+ support skip mode operation?
No, the MAX20006EAFOB/VY+ operates in forced-PWM (FPWM) mode only and does not support skip mode. This is explicitly stated in the datasheet: "MAX20006EAFOD/VY+ does not support skip mode operation and is FPWM mode only." Therefore, the SYNC pin must be tied to BIAS (or an external clock), not grounded - grounding SYNC will disable operation. This FPWM-only behavior ensures constant switching frequency for predictable EMI filtering but results in slightly higher light-load quiescent current than skip-capable variants.
How is the 3.9V output voltage set on the MAX20006EAFOB/VY+?
The MAX20006EAFOB/VY+ has a factory-trimmed fixed 3.9V output. To activate this setting, the FB pin (Pin 16) must be connected directly to the BIAS pin (Pin 13) - no external resistor divider is required. This configuration leverages internal trimming to achieve ±2% output accuracy over temperature and line/load conditions. Attempting to use an external divider will override the fixed-voltage mode and may degrade accuracy or cause instability due to mismatched compensation.
What thermal performance can be expected from the MAX20006EAFOB/VY+ in a standard 4-layer PCB?
On a standard 4-layer PCB with 2oz copper and adequate thermal vias under the exposed pad, the MAX20006EAFOB/VY+ exhibits a junction-to-ambient thermal resistance (θJA) of 38.8°C/W and junction-to-case (θJC) of 8°C/W. At 6A output and 14V input, typical power dissipation is ~1.2W; this yields a junction temperature rise of ~46°C above ambient. With a 70°C ambient, junction temperature stays well below the 150°C limit, confirming suitability for under-dash deployment without forced airflow.
Is the MAX20006EAFOB/VY+ pin-compatible with other members of the MAX2000xE family?
Yes, the MAX20006EAFOB/VY+ shares identical pinout, package (FC2QFN-17), and footprint with MAX20004E and MAX20008E variants. All devices use the same land pattern (90-100124) and outline (21-100383). However, output current rating (4A/6A/8A), internal current-limit thresholds, and fixed-output voltage options (3.3V/3.9V/5.0V) differ per variant - so while PCB layout is interchangeable, electrical validation for current capability and voltage accuracy is required when substituting.
MAX20006EAFOB/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:
- 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)
MAX20006EAFOB/VY+ FAQ
1.How can I place an order for MAX20006EAFOB/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20006EAFOB/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 MAX20006EAFOB/VY+ reliable?
The price and inventory of MAX20006EAFOB/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20006EAFOB/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20006EAFOB/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20006EAFOB/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20006EAFOB/VY+?
MAX20006EAFOB/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20006EAFOB/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 MAX20006EAFOB/VY+?
For technical support, including MAX20006EAFOB/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20006EAFOB/VY+ requirements.
6.How does Aetrix verify that MAX20006EAFOB/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20006EAFOB/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 MAX20006EAFOB/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20006EAFOB/VY+?
All MAX20006EAFOB/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20006EAFOB/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 MAX20006EAFOB/VY+ part is unused and in its original packaging.
Return procedure for MAX20006EAFOB/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX20006EAFOB/VY+ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
