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Analog Devices Inc./Maxim Integrated MAX20006AFOD/VY+T
- Part No.:
- MAX20006AFOD/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20006AFOD/VY+T.pdf
- Description:
- IC REG BUCK 3.3V 6A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,074
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Product details
Overview
The MAX20006AFOD/VY+T from Maxim Integrated is a 6A, AEC-Q100 qualified automotive synchronous buck converter with integrated high-side and low-side MOSFETs, operating from 3.5V to 36V input, delivering 5V or 3.3V fixed output (or 1V–10V programmable), and featuring 25µA quiescent current in skip mode - ideal for point-of-load regulation in navigation head units and distributed DC power systems.
For engineers reviewing the MAX20006AFOD/VY+T datasheet, MAX20006AFOD/VY+T pinout, MAX20006AFOD/VY+T application, or MAX20006AFOD/VY+T equivalent, key selection criteria include its 98% max duty cycle for cold-crank dropout resilience, resistor-programmable 220kHz–2.2MHz switching frequency, ±2% output voltage accuracy, spread-spectrum EMI reduction option, and FC2QFN-17 package thermal performance (θJA = 27°C/W).
Technical Context
This current-mode buck regulator integrates dual MOSFETs and supports forced-PWM (FPWM) or skip-mode operation via SYNC pin control, enabling stable fixed-frequency operation under dynamic loads or ultra-low IQ efficiency at light loads. Its internal 5V BIAS LDO powers control circuitry and can switch to VOUT post-startup depending on output voltage and IC variant.
It features cycle-by-cycle current limiting (ILX limit = 7.5A min / 12.5A max), thermal shutdown at 175°C with 15°C hysteresis, 40V load-dump tolerance, and RESET monitoring with 89–93% UV threshold and 0.2ms hold time - all validated across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous - matches MAX20006 device rating; enables PoL supply for infotainment SoCs without external current boosting. |
| Input Voltage Range | 3.5V to 36V - supports full automotive battery range including cold-crank (down to 3.5V) and load-dump transients (up to 40V tolerant). |
| Quiescent Current | 25µA typical in skip mode - sustains always-on subsystems (e.g., CAN wake-up logic) with minimal battery drain. |
| Switching Frequency | 220kHz to 2.2MHz, resistor-programmable - allows optimization of inductor size vs. EMI vs. light-load efficiency. |
| Output Voltage Accuracy | ±2% over line/load/temperature - ensures reliable power delivery to sensitive ADCs, sensors, and microcontrollers. |
| Duty Cycle Max | 98% typical - maintains regulation during deep undervoltage events (e.g., engine cranking at 5.5V input for 5V output). |
| Package | 3.5mm × 3.75mm, 17-pin FC2QFN - compact footprint with exposed thermal pad; θJA = 27°C/W on 4-layer board. |
Pinout & Package
MAX20006AFOD/VY+T uses a 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad (pin 17 is FOSC; pins 4,5,7,8 are PGND; pin 14 is GND). Pin functions are validated per Maxim's official datasheet Rev 8 (11/2019).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Power output node | Delivers regulated DC output; also supplies internal circuitry when BIAS switches over post-startup. |
| RESET (Pin 2) | Open-drain reset signal | Asserts low when VOUT falls below 89–93% of target; requires external pull-up for system reset coordination. |
| BST (Pin 3) | High-side gate driver supply | Must be decoupled with 0.1µF ceramic between BST and LX; critical for high-side MOSFET turn-on reliability. |
| PGND (Pins 4,5,7,8) | Power ground return | Low-impedance path for inductor and MOSFET currents; must be connected together and tied to thermal pad. |
| LX (Pin 6) | Switch node | Connects to inductor; carries high di/dt switching current; layout minimizes loop area to reduce EMI. |
| SUPSW (Pin 9) | High-side switch supply | Directly powers internal high-side FET; bypassed with 0.1µF + 4.7µF ceramics close to pin. |
| SUP (Pin 10) | Main supply input | Internally connected to SUPSW; supplies bias LDO; must be routed adjacent to SUPSW. |
| EN (Pin 11) | Enable control | Logic-compatible input; requires VSUP > 7.5V before enable for safe startup; pulls device into 5µA shutdown. |
| SYNC (Pin 12) | Mode/frequency control | Ground = skip mode; connect to BIAS or external clock ≤ ±20% of fSW = FPWM; includes internal clamp diode. |
| BIAS (Pin 13) | 5V linear regulator output | Supplies internal analog blocks; bypassed with ≥2.2µF ceramic; transitions to VOUT after startup in 5V-fixed variants. |
| GND (Pin 14) | Analog reference ground | Separate from PGND; connects to feedback network and compensation components to minimize noise coupling. |
| COMP (Pin 15) | Error amplifier output | Connects RC compensation network to GND; stabilizes loop response; sets bandwidth and phase margin. |
| FB (Pin 16) | Voltage feedback input | Accepts resistive divider from OUT; internally referenced to 1.00V ±1%; connects to BIAS for fixed 5V/3.3V outputs. |
| FOSC (Pin 17) | Frequency setting input | Resistor-to-GND sets fSW; 73.2kΩ → ~400kHz, 12kΩ → ~2.2MHz; enables precise EMI frequency placement. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-MOSFET power stage | Eliminates external high-side/low-side FETs and drivers; reduces BOM count and layout complexity in space-constrained automotive modules. |
| Spread-spectrum switching (factory-enabled option) | ±3% frequency modulation centered on fOSC - lowers peak EMI by spreading energy across spectrum, easing CISPR 25 Class 5 compliance. |
| 98% max duty cycle with dropout recovery | Maintains regulation down to VIN ≈ VOUT / 0.98 + IOUT × RHS; supports 5V output even at 5.5V input during cold crank. |
| RESET output with UV/OV monitoring | Monitors VOUT continuously; asserts within 25µs debounce window; provides fail-safe signaling for host MCU or safety controller. |
| AEC-Q100 Grade -40°C to +125°C | Qualified for automotive powertrain and body electronics; includes overtemperature protection with automatic recovery and hiccup-mode short-circuit handling. |
Applications
| Navigation Head Unit Power | ADAS Camera Module Supply |
|---|---|
Use Scenario: Powers display controller, touch processor, and audio codec in automotive infotainment head units requiring clean, efficient 5V/3.3V rails. IC Role / Device Role / Timing Role: Primary step-down regulator delivering 6A at 5V with tight transient response and low ripple for real-time video processing. Use Value: 25µA skip-mode IQ extends battery life during vehicle sleep; 98% duty cycle prevents brownout during engine start. |
Use Scenario: Supplies image sensor, ISP, and serializer in rear-view or surround-view camera modules mounted in hot under-hood environments. IC Role / Device Role / Timing Role: High-reliability PoL converter operating from 12V battery rail; delivers 3.3V @ 3A with ±2% accuracy for pixel clock stability. Use Value: AEC-Q100 qualification and 125°C junction rating ensure operation at PCB temperatures up to +105°C ambient; thermal shutdown protects against lens housing heat buildup. |
| Body Control Module (BCM) Core Supply | Telematics Control Unit (TCU) DC-DC Stage |
Use Scenario: Generates 5V core rail for microcontroller, CAN transceivers, and LIN interface in centralized body electronics modules. IC Role / Device Role / Timing Role: Main 5V buck converter with EN-controlled sequencing; RESET output synchronizes MCU boot with power-good assertion. Use Value: 40V load-dump tolerance eliminates need for upstream TVS; FPWM mode ensures constant switching frequency for predictable EMI filtering. |
Use Scenario: Provides isolated 3.3V supply for cellular modem, GNSS receiver, and secure element in LTE/5G telematics gateways. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 12V battery; operates in skip mode during cellular idle periods to minimize standby current. Use Value: Spread-spectrum option reduces conducted emissions on shared PCB with RF front-end; SYNC pin enables synchronized switching with other converters to avoid beat frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 (Monolithic Power) | 4A rated, 3.8V–36V input, 12µA IQ, no spread spectrum, QFN-13 package | Limited current capability; lacks RESET output and factory-programmable spread spectrum | Select when lower cost and smaller footprint outweigh need for 6A output and EMI mitigation features. |
| TPS546B24A (Texas Instruments) | 12A, 4.5V–18V input, PMBus interface, 10-bit VID, 10µA shutdown IQ, 20-pin QFN | Narrower VIN range; digital control adds complexity; higher pin count and cost | Choose for systems requiring dynamic voltage scaling, telemetry, or multi-rail coordination via PMBus. |
Compared with MPQ4436-AEC1 and TPS546B24A, the MAX20006AFOD/VY+T uniquely balances 6A output, ultra-low 25µA skip-mode IQ, AEC-Q100 qualification, integrated RESET, and optional spread-spectrum - making it optimal for cost-sensitive yet EMI-critical automotive PoL designs where 3.5V–36V operation and cold-crank resilience are mandatory.
Availability
MAX20006AFOD/VY+T is available at Aetrix Electronics and suitable for automotive navigation systems, ADAS camera modules, and body control units requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for MAX20006AFOD/VY+T 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 - emphasizing high reliability, small form factor, and robustness in harsh environments.
The MAX20006AFOD/VY+T belongs to the MAX2000x automotive buck converter family, engineered specifically for demanding vehicle electrical systems requiring wide-input operation, low quiescent current, and AEC-Q100 compliance in compact packaging.
FAQ
What is the maximum continuous output current supported by the MAX20006AFOD/VY+T?
The MAX20006AFOD/VY+T is rated for 6A continuous output current under specified thermal conditions (TA ≤ +70°C, 4-layer PCB, θJA = 27°C/W). Its LX current limit is guaranteed at 7.5A minimum, allowing brief overload tolerance. Actual achievable current depends on layout, airflow, and switching frequency - e.g., at 2.2MHz and +105°C ambient, derating to ~4.2A is typical per thermal curves in the datasheet.
Does the MAX20006AFOD/VY+T support adjustable output voltage, or only fixed 3.3V/5V?
The MAX20006AFOD/VY+T supports both: connecting FB directly to BIAS selects factory-trimmed 3.3V or 5V fixed output; for adjustable output (1V–10V), an external resistive divider connects OUT → FB → GND, with VFB = 1.00V ±1% reference. The device's datasheet provides exact resistor calculation formulas and stability guidelines for custom voltages.
How does the RESET output of the MAX20006AFOD/VY+T behave during startup and fault conditions?
The MAX20006AFOD/VY+T RESET output is open-drain and active-low. It remains asserted (low) until VOUT reaches ≥93% of target and holds for ≥0.2ms; it reasserts if VOUT drops below 89% during operation. During startup, RESET stays low until soft-start completes (~5ms) and regulation is achieved - providing clean power-good signaling for downstream MCUs without external timing components.
Can the MAX20006AFOD/VY+T operate with input voltage below 3.5V, such as during cold-crank transients?
No - the absolute minimum input voltage for functional operation is 3.5V per datasheet specifications. However, the MAX20006AFOD/VY+T can sustain regulation down to VIN ≈ VOUT / 0.98 + IOUT × RHS during brief undervoltage events (e.g., 5.5V input for 5V output), thanks to its 98% max duty cycle. Below 3.5V, internal bias circuitry fails to operate, and the device shuts down.
Is spread-spectrum switching enabled by default on the MAX20006AFOD/VY+T, or is it a factory-programmed option?
Spread-spectrum switching is a factory-programmed option - not enabled by default. The MAX20006AFOD/VY+T part number indicates the standard version without spread spectrum. To obtain spread-spectrum capability, the specific orderable part must include the "/SS" suffix (e.g., MAX20006AFOD/VY+T/SS), as defined in Maxim's ordering guide. When enabled, it modulates fOSC by ±3% at 4.5kHz (at 2.2MHz nominal).
MAX20006AFOD/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX20006AFOD/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20006AFOD/VY+T 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+T reliable?
The price and inventory of MAX20006AFOD/VY+T 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+T is usually 5 days.
3.What payment methods are accepted for MAX20006AFOD/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20006AFOD/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20006AFOD/VY+T?
MAX20006AFOD/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20006AFOD/VY+T 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+T?
For technical support, including MAX20006AFOD/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20006AFOD/VY+T requirements.
6.How does Aetrix verify that MAX20006AFOD/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20006AFOD/VY+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX20006AFOD/VY+T?
All MAX20006AFOD/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20006AFOD/VY+T, 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+T part is unused and in its original packaging.
Return procedure for MAX20006AFOD/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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