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Analog Devices Inc./Maxim Integrated MAX20011BAFOE/VY+
- Part No.:
- MAX20011BAFOE/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 17-PowerWFQFN
- Datasheet:
-
MAX20011BAFOE/VY+.pdf
- Description:
- IC REG BUCK ADJ 12A 17FC2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
MAX20011BAFOE/VY+ from Analog Devices is an automotive-grade, synchronous step-down DC-DC converter delivering up to 16A peak output current with ±1.5% output voltage accuracy over load, line, and temperature. It operates from 3.0V–5.5V input and regulates 0.5V–1.275V output in 6.25mV steps via I²C, featuring ASIL D compliance, differential remote sensing, and 2.2MHz fixed-frequency PWM operation. It targets SoC core power in ADAS systems requiring high reliability and tight regulation.
For engineers reviewing the MAX20011BAFOE/VY+ datasheet, MAX20011BAFOE/VY+ pinout, MAX20011BAFOE/VY+ application, or MAX20011BAFOE/VY+ equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade thermal and safety specifications, and real-world design implications for point-of-load regulation in safety-critical vehicle subsystems.
Technical Context
The MAX20011BAFOE/VY+ implements current-mode, forced-PWM control with programmable compensation and integrated high-side (6.8mΩ) and low-side (4mΩ) NMOS FETs. Its architecture supports dynamic voltage scaling (DVS) with adjustable slew rates and includes redundant reference, BIST diagnostics, and PEC-protected I²C for ASIL D compliance.
Differential remote sensing (RS+/RS−) enables precise regulation at the load, while spread-spectrum modulation reduces EMI. The device supports synchronization via SYNC pin (1.8–2.6MHz input or 2.2MHz output), and features soft-start/shutdown ramping, overtemperature shutdown at 165°C (15°C hysteresis), and overcurrent protection with valley-current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 16A peak - supports high-power SoC cores without external current boosting |
| Input Voltage Range | 3.0V to 5.5V - compatible with automotive 3.3V/5V rails and battery-supervised supplies |
| Output Voltage Range | 0.5V to 1.275V in 6.25mV steps - fine-grained DVS for processor DVFS and margining |
| Output Accuracy | ±1.5% over load/line/temp - ensures stable core voltage under transient and thermal stress |
| Switching Frequency | 2.2MHz (fixed) - enables compact all-ceramic filter design and fast load-transient response |
| Operating Temperature | −40°C to +125°C (Grade 1 automotive) - qualified for engine bay and ADAS ECU environments |
| Safety Certification | ASIL D compliant - includes redundant reference, BIST, PEC on I²C, and ±1% OV/UV detection |
Pinout & Package
MAX20011BAFOE/VY+ uses a 3.5mm × 4mm, 17-pin side-wettable FC2QFN package (package code F173A4FY+1) with exposed pad internally connected to PV. This automotive-qualified package supports automated optical inspection (AOI) and improves solder joint reliability in harsh thermal cycling environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Active-high enable input | Starts soft-start on rising edge; initiates controlled shutdown on falling edge |
| BST | Bootstrap supply | Provides gate drive voltage for high-side NMOS; requires 0.1µF ceramic capacitor to LX |
| PV (Pins 3,9,16) | Main power input supply | Connects to 3.0–5.5V rail; each pin must be decoupled with ≥10µF ceramic capacitor to PGND |
| PGND (Pins 4,5,7,8,11,12) | Power ground return | Low-impedance path for high-current switching; all pins must be shorted on PCB |
| LX (Pin 6) | Switch node | Connects to inductor; carries high di/dt; requires minimized loop area for EMI control |
| RS+, RS− | Differential remote sense inputs | Enable Kelvin sensing at load; RS+ connects to VOUT, RS− to GND near load; max 2Ω trace resistance |
| SYNC | Frequency synchronization I/O | Configurable as input (1.8–2.6MHz) or output (2.2MHz); enables system-level clock alignment |
| RESET | Open-drain power-good output | Asserts low until VOUT stabilizes within ±1.5%; requires external pull-up for logic-level signaling |
| GND, AV, SDA, SCL | Analog ground / analog supply / I²C data/clock | AV powers internal references; GND separates analog/digital domains; I²C supports 1MHz operation with PEC |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote voltage sensing | Compensates for IR drop across PCB traces, enabling ±0.5% regulation accuracy at point-of-load |
| ASIL D safety mechanisms | Includes redundant voltage reference, built-in self-test (BIST), and packet error checking (PEC) on I²C bus |
| Programmable soft-start/slew rate | Prevents inrush current during power-up; DVS slew rate configurable via SLEW register (SR[3:0]) |
| Spread-spectrum modulation | Reduces peak radiated emissions by ±3% frequency dithering around 2.2MHz base frequency |
| Integrated low-RDS(ON) FETs | 6.8mΩ HS / 4mΩ LS MOSFETs minimize conduction loss and eliminate discrete driver complexity |
| Overtemperature & short-circuit protection | Thermal shutdown at 165°C with 15°C hysteresis; valley-current limiting prevents latch-up during overload |
Applications
| ADAS Camera Module Power | Automotive SoC Core Rail |
|---|---|
Use Scenario: Powers image signal processor (ISP) and AI accelerator cores in front-facing stereo camera ECU. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering dynamically scaled 0.75V–1.0V core voltage under I²C-controlled DVFS. Use Value: Enables real-time voltage margining during thermal throttling while maintaining ASIL D-compliant reset signaling and fault reporting. |
Use Scenario: Supplies 16A peak current to multi-core automotive SoC (e.g., NXP S32G, TI Jacinto 7) in domain controller. IC Role / Device Role / Timing Role: High-current buck converter with differential remote sensing to regulate core voltage at die package ball-out point. Use Value: Achieves ±1.5% output accuracy despite 150mV IR drop across 4-layer PCB, eliminating need for external sensing amplifiers. |
| Radar Processor Supply | Central Gateway ECU Power |
Use Scenario: Provides clean, low-noise 0.85V supply to millimeter-wave radar DSP under wide ambient temperature swing. IC Role / Device Role / Timing Role: Automotive Grade 1 regulator with 2.2MHz switching and spread-spectrum EMI reduction for RF-sensitive environment. Use Value: Meets CISPR 25 Class 5 radiated emissions limits without shielding, reducing BOM cost and board space. |
Use Scenario: Delivers robust 1.0V core rail to ARM Cortex-A76-based gateway SoC managing CAN FD, Ethernet, and cellular interfaces. IC Role / Device Role / Timing Role: Safety-monitored buck converter with RESET assertion and I²C-configurable OV/UV thresholds. Use Value: Supports fail-safe boot sequencing and diagnostic logging via PEC-secured I²C interface during OTA updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4333GLED-AEC1 | 12A peak, 2.2MHz, no ASIL D certification; lacks BIST, PEC, redundant reference | Supports basic ADAS power but not ASIL D–compliant systems; no DVS slew control | Choose when functional safety requirements are limited to ASIL B or lower; lower cost, simpler register map |
| TPS62480QRVCTQ1 | 12A peak, 2.4MHz, ASIL B qualified; no differential sensing; only single-point feedback | Requires external resistor divider for VOUT setting; no remote sense capability for precision load regulation | Prefer where board layout constraints prevent Kelvin routing; suitable for non-critical core rails with looser accuracy |
Compared with MPQ4333GLED-AEC1 and TPS62480QRVCTQ1, MAX20011BAFOE/VY+ uniquely delivers 16A peak current with full ASIL D compliance, differential remote sensing, and programmable DVS slew-making it the only option for safety-critical SoC core regulation in next-gen ADAS ECUs.
Availability
MAX20011BAFOE/VY+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, radar processors, SoC core power, and central gateway ECUs requiring stable component supply under AEC-Q100 Grade 1 qualification and long-term production continuity.
Supply support for MAX20011BAFOE/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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets with safety-certified power solutions.
The MAX20011 family is designed specifically for automotive safety-critical point-of-load regulation-delivering high-current, low-noise, ASIL D–compliant DC-DC conversion for ADAS SoCs, radar, and domain controllers.
FAQ
What is the maximum output current rating of the MAX20011BAFOE/VY+?
The MAX20011BAFOE/VY+ is rated for 16A peak output current under recommended operating conditions (3.0V–5.5V input, −40°C to +125°C). This rating is validated per the MAX20011C specification in the official datasheet and applies to the BAFOE/VY+ variant, which shares the same silicon and FC2QFN package as the MAX20011C. Continuous current capability depends on thermal design and PCB copper area.
Does the MAX20011BAFOE/VY+ support dynamic voltage scaling (DVS)?
Yes, the MAX20011BAFOE/VY+ supports dynamic voltage scaling via its I²C interface. Output voltage can be adjusted from 0.5V to 1.275V in 6.25mV steps using the VID[7:0] register, and the slew rate during DVS transitions is programmable through the SLEW register's SR[3:0] bits. This enables precise DVFS control for automotive SoCs without external DACs or sequencers.
Is the MAX20011BAFOE/VY+ ASIL D compliant, and what safety features does it include?
Yes, the MAX20011BAFOE/VY+ is ASIL D compliant per ISO 26262. It includes redundant internal voltage reference, built-in self-test (BIST) diagnostics, packet error checking (PEC) on the I²C bus, and programmable overvoltage/undervoltage detection with ±1% accuracy. These features are documented in the "Benefits and Features" and "Detailed Description" sections of the MAX20011C/MAX20011D datasheet.
What package type and footprint does the MAX20011BAFOE/VY+ use?
The MAX20011BAFOE/VY+ uses a 3.5mm × 4mm, 17-pin side-wettable FC2QFN package (outline number 21-100418, land pattern 90-100150). The "/VY+" suffix explicitly denotes side-wettable, automotive-qualified, RoHS-compliant packaging. The exposed pad is internally connected to PV, and all PGND pins must be tied together on the PCB for optimal thermal and electrical performance.
Can the MAX20011BAFOE/VY+ operate with external synchronization?
Yes, the MAX20011BAFOE/VY+ supports external synchronization via the SYNC pin. When configured as an input (factory default), it accepts external clock frequencies between 1.8MHz and 2.6MHz for 2.2MHz internal operation, or 0.9MHz–1.3MHz for 1.1MHz mode. When configured as an output, SYNC drives the internal 2.2MHz switching frequency, enabling system-level timing alignment across multiple regulators.
MAX20011BAFOE/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 17-PowerWFQFN
- Packaging:
- Strip
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 1.275V
- Current - Output:
- 12A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-FC2QFN (3.5x3.75)
MAX20011BAFOE/VY+ FAQ
1.How can I place an order for MAX20011BAFOE/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20011BAFOE/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 MAX20011BAFOE/VY+ reliable?
The price and inventory of MAX20011BAFOE/VY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20011BAFOE/VY+ is usually 5 days.
3.What payment methods are accepted for MAX20011BAFOE/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20011BAFOE/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20011BAFOE/VY+?
MAX20011BAFOE/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20011BAFOE/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 MAX20011BAFOE/VY+?
For technical support, including MAX20011BAFOE/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20011BAFOE/VY+ requirements.
6.How does Aetrix verify that MAX20011BAFOE/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20011BAFOE/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 MAX20011BAFOE/VY+ meets industry standards.
7.What is the process for return or replacement of MAX20011BAFOE/VY+?
All MAX20011BAFOE/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20011BAFOE/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 MAX20011BAFOE/VY+ part is unused and in its original packaging.
Return procedure for MAX20011BAFOE/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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