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Analog Devices Inc./Maxim Integrated MAX20006AFOC/VY+
- Part No.:
- MAX20006AFOC/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20006AFOC/VY+.pdf
- Description:
- IC REG BUCK 5V 6A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:803
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Product details
Overview
MAX20006AFOC/VY+ from Maxim Integrated is a 6A synchronous automotive buck converter with integrated high-side and low-side MOSFETs, operating from 3.5V to 36V input and delivering programmable 1V–10V or fixed 3.3V/5.0V output. It features 25µA quiescent current in skip mode, 98% max duty cycle for dropout operation, and AEC-Q100 qualification - deployed in navigation head units and distributed DC power systems.
For engineers reviewing the MAX20006AFOC/VY+ datasheet, MAX20006AFOC/VY+ pinout, MAX20006AFOC/VY+ application, or MAX20006AFOC/VY+ equivalent, key selection criteria include its 3.5mm × 3.75mm 17-pin FC2QFN package, resistor-programmable 220kHz–2.2MHz switching frequency, ±2% output voltage accuracy, RESET open-drain signal, and forced-PWM/skip-mode control via SYNC pin.
Technical Context
The MAX20006AFOC/VY+ implements current-mode control with internal slope compensation, supporting both fixed-frequency forced-PWM (FPWM) and light-load skip mode. Its dual supply architecture separates SUP (bias regulator input) from SUPSW (high-side switch supply), enabling stable operation during cold-crank transients down to 3.5V.
It integrates a 5V BIAS LDO that switches to VOUT post-startup in fixed-output variants, includes cycle-by-cycle current limiting with hiccup-mode short-circuit recovery, and features thermal shutdown at 175°C with 15°C hysteresis - all within an AEC-Q100 Grade-1 (−40°C to +125°C) qualified design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 6A continuous - supports automotive PoL loads including infotainment processors and ADAS domain controllers. |
| Input Voltage Range | 3.5V to 36V - accommodates full automotive battery range including cold-crank (3.5V) and load-dump (40V tolerant). |
| Quiescent Current | 25µA in skip mode - enables always-on functionality in low-power vehicle subsystems without battery drain. |
| Switching Frequency | 220kHz to 2.2MHz (resistor-programmable) - allows optimization of inductor size, EMI, and efficiency across diverse board layouts. |
| Output Voltage Accuracy | ±2% over line/load/temperature - ensures reliable power delivery to sensitive analog and digital circuits. |
| Duty Cycle Max | 98% - sustains regulation during deep input undervoltage events (e.g., engine start) with minimal dropout. |
| Package | 3.5mm × 3.75mm 17-pin FC2QFN - compact footprint with exposed thermal pad for high-power density in space-constrained modules. |
| Operating Temp | −40°C to +125°C junction - meets automotive under-hood and cabin environmental requirements. |
Pinout & Package
MAX20006AFOC/VY+ uses a 3.5mm × 3.75mm, 17-pin FC2QFN package with exposed thermal pad. Pin 1 is OUT; pins 4,5,7,8 are PGND; pin 14 is GND (analog ground); and pin 10 (SUP) must be connected directly to pin 9 (SUPSW) near the IC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Switching regulator output | Delivers regulated DC output; also powers internal circuitry when BIAS switches over post-startup. |
| 2 (RESET) | Open-drain active-low reset | Asserts when VOUT falls below 91% of target; requires external pullup for system reset signaling. |
| 3 (BST) | High-side gate driver supply | Must be decoupled to LX with 0.1µF ceramic capacitor; critical for proper high-side FET turn-on. |
| 4,5,7,8 (PGND) | Power ground | Low-impedance return path for high-current LX switching; must be tied together and connected to thermal pad. |
| 6 (LX) | Inductor switch node | Connects to inductor; carries high di/dt ripple current - layout minimizes loop area for EMI reduction. |
| 9 (SUPSW) | High-side switch supply | Primary power for internal MOSFET drivers; bypassed with 0.1µF + 4.7µF ceramics to PGND. |
| 10 (SUP) | Bias regulator input | Supplies internal linear regulator; must be shorted to SUPSW externally per layout guidelines. |
| 11 (EN) | Enable input | Logic-compatible enable; drives low to shut down (5µA IQ); rising threshold is 2.4V. |
| 12 (SYNC) | Mode/frequency control | Ground for skip mode; connect to BIAS or external clock ≤2.6MHz for FPWM operation. |
| 13 (BIAS) | Linear regulator output | 5V internal LDO output; switches to VOUT after startup in fixed-output versions for improved efficiency. |
| 14 (GND) | Analog ground | Reference for FB, COMP, and internal analog blocks; separate from PGND to reduce noise coupling. |
| 15 (COMP) | Error amplifier output | Connect RC network to GND for loop stability; compensation sets bandwidth and phase margin. |
| 16 (FB) | Feedback input | Connect to resistive divider from OUT for adjustable output; tie to BIAS for fixed 3.3V/5.0V. |
| 17 (FOSC) | Frequency setting | Resistor to GND sets fSW: 73.2kΩ → ~400kHz; 12kΩ → ~2.2MHz per datasheet curve. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | High-side (38mΩ typ) and low-side (18mΩ typ) MOSFETs eliminate external discrete switches and reduce BOM count. |
| AEC-Q100 Qualified | Grade-1 qualification (−40°C to +125°C) confirms reliability for automotive safety-critical power rails. |
| Load-Dump Tolerance | Withstands 40V transients on SUP/SUPSW pins - eliminates need for external TVS in many front-end designs. |
| Programmable Soft-Start | Fixed 5ms internal soft-start prevents inrush current damage to input capacitors and downstream circuitry. |
| Spread-Spectrum Option | Factory-enabled ±3% frequency modulation reduces peak EMI by spreading energy across spectrum. |
| Robust Protection Suite | Includes overtemperature shutdown (175°C), cycle-by-cycle current limit, hiccup-mode short-circuit recovery, and overvoltage protection. |
Applications
| Navigation Head Units | ADAS Camera Modules |
|---|---|
Use Scenario: Powering display controllers, touch processors, and audio codecs in automotive infotainment displays. IC Role / Device Role / Timing Role: Primary 5V/3.3V point-of-load regulator supplying core logic and interface I/O. Use Value: 25µA quiescent current enables always-on wake-up capability without excessive battery drain during vehicle sleep mode. | Use Scenario: Providing stable 3.3V rail to image sensors and ISP processors in surround-view or forward-facing cameras. IC Role / Device Role / Timing Role: High-efficiency, low-noise buck converter with fast transient response for pixel-clock-sensitive analog front ends. Use Value: ±2% output accuracy and good load-transient performance maintain sensor ADC reference stability under dynamic illumination changes. |
| Body Control Modules | Telematics Control Units |
Use Scenario: Supplying 5V to microcontrollers, CAN transceivers, and LIN interface ICs in door modules and lighting controllers. IC Role / Device Role / Timing Role: Main system power regulator with RESET monitoring for safe MCU boot sequencing and brownout detection. Use Value: RESET output provides hardware-level reset assertion during VOUT undervoltage, ensuring deterministic firmware initialization. | Use Scenario: Delivering 5V to cellular modems, GNSS receivers, and secure boot MCUs in vehicle connectivity gateways. IC Role / Device Role / Timing Role: High-reliability PoL converter supporting extended temperature operation and long-term field deployment. Use Value: AEC-Q100 qualification and −40°C to +125°C operation ensure uninterrupted data transmission across global climate zones. |
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, no integrated BIAS LDO | Lacks internal 5V BIAS regulator - requires external bias supply for gate drivers | Choose LM61460-Q1 when lower IQ and higher switching frequency are prioritized over integrated bias simplification. |
| TPS546B24A | 4.5V–18V input, 12A, 300kHz–2.2MHz, PMBus interface, 25µA IQ in Eco-mode | Narrower VIN range and digital interface add complexity; not 40V load-dump tolerant | Choose TPS546B24A only if telemetry, dynamic voltage scaling, or higher current is required - not for 24V/36V battery systems. |
Compared with LM61460-Q1 and TPS546B24A, MAX20006AFOC/VY+ uniquely combines 3.5V–36V operation, integrated BIAS LDO, 40V load-dump tolerance, and AEC-Q100 Grade-1 rating - making it optimal for cost-sensitive, high-reliability automotive PoL where simplicity and robustness outweigh digital control needs.
Availability
MAX20006AFOC/VY+ is available at Aetrix Electronics and suitable for automotive navigation systems, ADAS camera modules, and body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX20006AFOC/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 MAX20006AFOC/VY+ belongs to the MAX2000x family of fully integrated automotive buck converters - engineered specifically for high-reliability, wide-input-voltage point-of-load regulation in harsh automotive environments.
FAQ
What is the maximum output current capability of the MAX20006AFOC/VY+?
The MAX20006AFOC/VY+ is rated for 6A continuous output current under specified thermal conditions. Actual achievable current depends on PCB layout, ambient temperature, switching frequency, and heatsinking. At 2.2MHz and +70°C ambient on a four-layer board, typical sustained output is ~4.5A before thermal limiting activates. The device includes cycle-by-cycle current limiting and hiccup-mode protection to sustain operation during overload events without damage.
Does the MAX20006AFOC/VY+ support adjustable output voltage?
Yes, the MAX20006AFOC/VY+ supports programmable output voltages from 1V to 10V using an external resistive divider connected between OUT and FB pins. For fixed outputs, FB can be tied directly to BIAS to select factory-trimmed 3.3V or 5.0V options. The feedback regulation voltage is precisely trimmed to 1.00V ±1%, enabling high-accuracy output setting across temperature and load conditions.
How does the SYNC pin control operating mode in the MAX20006AFOC/VY+?
The SYNC pin selects between skip mode and forced-PWM (FPWM) operation: grounding SYNC enables automatic skip mode for ultra-low IQ at light loads, while connecting SYNC to BIAS or an external clock (≤2.6MHz) forces fixed-frequency FPWM mode to suppress audible noise and minimize EMI variation. The device synchronizes to external clocks within two cycles and reverts to internal oscillation if SYNC is inactive for >2 cycles.
What protection features are integrated into the MAX20006AFOC/VY+?
The MAX20006AFOC/VY+ integrates overtemperature shutdown (175°C trip, 160°C recovery), cycle-by-cycle current limiting, hiccup-mode short-circuit protection, overvoltage protection (107% rising threshold), and 40V load-dump tolerance on SUP/SUPSW pins. It also includes BIAS undervoltage lockout (2.7V–3.3V) and EN input hysteresis (0.2V) to prevent erratic startup during battery transients.
Is the MAX20006AFOC/VY+ pin-compatible with other devices in the MAX2000x family?
Yes, the MAX20006AFOC/VY+ shares identical pinout, package (17-pin FC2QFN), and footprint with MAX20004 and MAX20008 variants. This enables direct substitution across 4A/6A/8A current ratings without PCB redesign - allowing scalable power delivery in platform-based automotive designs where load requirements evolve across model years or trim levels.
MAX20006AFOC/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:
- 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)
MAX20006AFOC/VY+ FAQ
1.How can I place an order for MAX20006AFOC/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20006AFOC/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 MAX20006AFOC/VY+ reliable?
The price and inventory of MAX20006AFOC/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20006AFOC/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20006AFOC/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20006AFOC/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20006AFOC/VY+?
MAX20006AFOC/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20006AFOC/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 MAX20006AFOC/VY+?
For technical support, including MAX20006AFOC/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20006AFOC/VY+ requirements.
6.How does Aetrix verify that MAX20006AFOC/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20006AFOC/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 MAX20006AFOC/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20006AFOC/VY+?
All MAX20006AFOC/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20006AFOC/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 MAX20006AFOC/VY+ part is unused and in its original packaging.
Return procedure for MAX20006AFOC/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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