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Analog Devices Inc./Maxim Integrated MAX20072ATAA/V+
- Part No.:
- MAX20072ATAA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX20072ATAA/V+.pdf
- Description:
- IC REG BUCK ADJ 1A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,974
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Product details
Overview
MAX20072ATAA/V+ from Analog Devices is a 1A, 2.2MHz synchronous step-down DC-DC converter in an 8-pin TDFN-EP package, operating from 3.0V to 5.5V input and delivering adjustable output from 0.5V to 3.8V with ±1.5% total output error over load, line, and temperature. It integrates high-side (80–300mΩ) and low-side (50–200mΩ) MOSFETs and features PGOOD, EN, SYNC, and spread-spectrum capability - deployed in automotive point-of-load regulation.
For engineers reviewing the MAX20072ATAA/V+ datasheet, MAX20072ATAA/V+ pinout, MAX20072ATAA/V+ application, or MAX20072ATAA/V+ equivalent, key selection considerations include its 1A rated output current, factory-preset or resistor-adjustable VOUT, 0.85ms soft-start, -40°C to +125°C automotive-grade operation, and 2mm × 2mm footprint enabling compact power delivery in space-constrained ECUs and ADAS modules.
Technical Context
The MAX20072ATAA/V+ implements current-mode control with fixed 2.2MHz PWM operation (±10% tolerance), supporting forced-PWM or pulse-skipping modes via the SYNC pin. Its internal 0.5V reference and feedback architecture allow precise output setting using external resistors or factory-trimmed values.
It integrates thermal shutdown (165°C trip, 15°C hysteresis), cycle-by-cycle overcurrent limiting (1.4–1.6A threshold), and 107% OV / 93% UV monitoring on the PGOOD output. The device uses a monolithic architecture with integrated high- and low-side FETs, eliminating external gate drivers and reducing BOM count for single-rail post-regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1A continuous - supports full-load operation in automotive infotainment and sensor power rails without external current boosting. |
| Input Voltage Range | 3.0V to 5.5V - compatible with 3.3V/5V system rails and withstands automotive cold-crank transients down to 3V. |
| Switching Frequency | 2.2MHz (typ), ±10% - enables use of small 2.2µH inductors and all-ceramic output capacitors, minimizing solution size. |
| Output Voltage Accuracy | ±1.5% over load, line, and temperature - ensures stable core voltage for microcontrollers and imaging sensors without trimming. |
| Soft-Start Time | Fixed 0.85ms - limits inrush current during power-up, preventing input rail droop in multi-rail systems. |
| Operating Temperature | -40°C to +125°C ambient - qualified for under-hood and ADAS camera module deployment per AEC-Q100 stress requirements. |
| Package | 8-pin TDFN-EP (2mm × 2mm, 0.85mm height) - exposes thermal pad for efficient PCB heat dissipation in high-density layouts. |
Pinout & Package
MAX20072ATAA/V+ is housed in an 8-pin TDFN-EP package (outline 21-0168, land pattern 90-0065) with exposed thermal pad (EP) connected to PGND. The package supports four-layer board thermal performance (θJA = 85.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AV | Analog supply | Noise-filtered bias rail for internal reference and error amplifier; requires 1µF capacitor + 10Ω series resistor to PV. |
| 2 SYNC | Synchronization input | Selects operation mode: grounded → skip mode (light-load efficiency); tied to PV or clock → forced PWM (EMI control). |
| 3 PGND | Power ground | High-current return path for LX switching node; must be low-impedance and directly connected to EP. |
| 4 PV | Main power input | 3.0–5.5V supply input; requires ≥4.7µF ceramic capacitor to PGND for transient suppression. |
| 5 PG | Open-drain PGOOD output | Asserts low when output deviates >7% from regulation; requires external pullup ≥2kΩ for system power sequencing. |
| 6 LX | Switch node | Connects to inductor's switched side; carries high di/dt current - must be short, wide, and adjacent to PGND. |
| 7 EN | Enable input | Active-high logic control (VIH = 1.5V min); rising edge initiates 0.85ms soft-start; falling edge enters shutdown (<2µA quiescent). |
| 8 OUT | Feedback input | Connects to resistor divider (0.5V internal reference) for adjustable VOUT; or directly to output for factory-preset versions. |
| EP | Exposed thermal pad | Internally connected to PGND; requires ≥3 vias to inner ground planes for thermal management and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high- and low-side MOSFETs | HSRON = 80–300mΩ / LSRON = 50–200mΩ - eliminates external FETs and gate drivers, reducing layout complexity and component count. |
| Spread-spectrum oscillator | ±3% frequency dither - lowers peak EMI emissions without requiring external filtering components in automotive EMC-sensitive designs. |
| Factory-preset or resistor-adjustable output | VOUT set in 10mV steps at wafer level or via external R1/R2 (0.5V reference) - enables ±1.5% accuracy without 0.1% precision resistors. |
| Robust protection suite | Overcurrent limit (1.4–1.6A), overtemperature shutdown (165°C), UVLO (2.4–2.55V), and PGOOD OV/UV monitoring - ensures safe operation during fault conditions. |
| Automotive-grade qualification | AEC-Q100 qualified (Grade 1), RoHS-compliant (+ suffix), and tape-and-reel packaged (V+T variant available) - meets OEM production traceability and reliability requirements. |
Applications
| ADAS Camera Power Supply | Automotive Infotainment Core Rail |
|---|---|
Use Scenario: Powers image signal processor (ISP) and CMOS sensor in forward-facing ADAS cameras requiring clean, stable 1.1V or 1.2V at up to 1A. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated low-voltage core power with fast transient response. Use Value: ±1.5% output accuracy and 2.2MHz switching enable compact 2.2µH inductor + ceramic cap solution, meeting strict EMI limits for ISO 11452-2 compliance. |
Use Scenario: Supplies 1.8V or 3.3V to SoC cores and DDR memory interfaces in head-unit infotainment systems with variable load profiles. IC Role / Device Role / Timing Role: Post-regulator stepping down 5V system rail to low-noise digital rails while supporting dynamic voltage scaling. Use Value: Skip-mode operation improves light-load efficiency (>85% at 10mA), extending battery runtime during display-off states without compromising PWM-mode stability at full load. |
| Body Control Module (BCM) Subsystem | Radar Transceiver Bias Supply |
Use Scenario: Generates 2.5V or 3.3V for CAN transceivers, LIN controllers, and LED drivers in centralized BCMs operating across extended temperature range. IC Role / Device Role / Timing Role: High-reliability secondary regulator providing isolated, fault-tolerant power to safety-critical communication peripherals. Use Value: -40°C to +125°C operation, PGOOD monitoring, and overtemperature/short-circuit protection ensure uninterrupted bus communication during thermal stress events. |
Use Scenario: Delivers low-noise 1.2V bias to RF front-end ICs in 77GHz radar modules where supply ripple directly impacts phase noise and detection sensitivity. IC Role / Device Role / Timing Role: Low-ripple, high-PSRR DC-DC stage placed close to RF IC to minimize conducted noise coupling into sensitive analog paths. Use Value: 0.5V internal reference, tight ±1.5% regulation, and spread-spectrum mode reduce spectral peaks in 1–10MHz band critical for radar spectral mask compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4420AGL-A-Z | 1A, 2.2MHz, 3.3–36V input; no spread spectrum; 1.2V fixed or adjustable; QFN-10 package (3mm × 3mm) | Broad industrial input range vs. MAX20072ATAA/V+'s 3–5.5V automotive focus; larger footprint and higher minimum input voltage. | Choose MPQ4420AGL-A-Z for non-automotive 12V/24V systems needing wider VIN; avoid for 3.3V-only or space-constrained automotive PCBs. |
| TPS6286418RRLR | 1A, 2.25MHz, 2.7–6V input; 1.8V fixed; 1.5mm × 2.0mm WCSP-12; ±1% accuracy; no PGOOD or SYNC | Smaller package and tighter accuracy, but lacks PGOOD, SYNC, and spread spectrum - limited configurability and fault reporting. | Choose TPS6286418RRLR only when board area is paramount and system-level PGOOD is handled externally; MAX20072ATAA/V+ preferred for full-feature automotive integration. |
Compared with MPQ4420AGL-A-Z and TPS6286418RRLR, MAX20072ATAA/V+ uniquely combines automotive temperature range, integrated PGOOD/SYNC/spread-spectrum, and 2mm × 2mm TDFN-EP in a single 1A solution - making it optimal for AEC-Q100-compliant ADAS and body electronics where feature completeness and footprint efficiency are jointly critical.
Availability
MAX20072ATAA/V+ is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment SoC power rails, body control unit subsystems, and radar transceiver bias supplies requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX20072ATAA/V+ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets with precision power, sensing, and timing solutions.
The MAX20072ATAA/V+ belongs to Analog Devices' MAX2007x automotive power management family, designed specifically for compact, high-efficiency point-of-load regulation in AEC-Q100 Grade 1 environments - emphasizing low EMI, robust protection, and seamless integration into safety-critical vehicle electronics.
FAQ
What is the maximum output current rating of the MAX20072ATAA/V+?
The MAX20072ATAA/V+ is rated for continuous 1A output current across its full operating temperature range (-40°C to +125°C). This rating is validated under typical conditions with adequate PCB thermal design (including EP grounding vias) and proper input/output capacitor selection per the datasheet guidelines. Derating may apply above 85°C ambient depending on layout and airflow.
Does the MAX20072ATAA/V+ support adjustable output voltage?
Yes, the MAX20072ATAA/V+ supports both factory-preset and resistor-adjustable output configurations. In adjustable mode, it uses an internal 0.5V reference and the OUT pin to interface with an external resistive divider (R1/R2), enabling output voltages from 0.5V to approximately PV – 0.5V. The ordering code "ATAA" explicitly denotes the adjustable version, distinct from fixed-output variants like ATAB/V+ (1.2V).
What protection features does the MAX20072ATAA/V+ include?
The MAX20072ATAA/V+ integrates overcurrent limiting (1.4–1.6A threshold), overtemperature shutdown (165°C trip with 15°C hysteresis), input UVLO (2.4–2.55V), and PGOOD-based output OV/UV monitoring (107%/93%). These protections operate autonomously without external circuitry, ensuring safe recovery after fault clearance and supporting fail-safe behavior in automotive applications.
Can the MAX20072ATAA/V+ be synchronized to an external clock?
Yes, the MAX20072ATAA/V+ supports external synchronization via the SYNC pin. When driven high (to PV or an external clock source), it operates in forced-PWM mode at the applied frequency (1.7–2.4MHz range). When SYNC is grounded or left floating, it defaults to pulse-skipping mode for improved light-load efficiency - enabling dynamic mode switching during operation without reconfiguration.
Is the MAX20072ATAA/V+ qualified for automotive applications?
Yes, the MAX20072ATAA/V+ is AEC-Q100 qualified (Grade 1: -40°C to +125°C ambient), RoHS-compliant (indicated by the "+" suffix), and manufactured in an automotive-grade flow. Its datasheet specifies performance across the full temperature range, includes automotive-specific protections (e.g., cold-crank tolerant UVLO), and is packaged in tape-and-reel format (V+T variant available) to meet OEM production requirements.
MAX20072ATAA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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):
- 5V
- Current - Output:
- 1A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
MAX20072ATAA/V+ FAQ
1.How can I place an order for MAX20072ATAA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20072ATAA/V+ 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 MAX20072ATAA/V+ reliable?
The price and inventory of MAX20072ATAA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20072ATAA/V+ is usually 5 days.
3.What payment methods are accepted for MAX20072ATAA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20072ATAA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20072ATAA/V+?
MAX20072ATAA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20072ATAA/V+ 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 MAX20072ATAA/V+?
For technical support, including MAX20072ATAA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20072ATAA/V+ requirements.
6.How does Aetrix verify that MAX20072ATAA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20072ATAA/V+ 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 MAX20072ATAA/V+ meets industry standards.
7.What is the process for return or replacement of MAX20072ATAA/V+?
All MAX20072ATAA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20072ATAA/V+, 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 MAX20072ATAA/V+ part is unused and in its original packaging.
Return procedure for MAX20072ATAA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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