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Analog Devices Inc./Maxim Integrated MAX20072ATAA/V+T
- Part No.:
- MAX20072ATAA/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX20072ATAA/V+T.pdf
- Description:
- IC REG BUCK ADJ 1A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,675
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Product details
Overview
MAX20072ATAA/V+T from Analog Devices is a 1A, 2.2MHz synchronous step-down DC-DC converter in an 8-pin TDFN (2mm × 2mm) package with exposed pad. It operates from 3.0V to 5.5V input, delivers factory-preset or resistor-adjustable output (0.5V–3.8V), and maintains ±1.5% output-voltage accuracy over load, line, and temperature. Designed for automotive point-of-load regulation, it integrates enable, PGOOD, soft-start, and overtemperature/overcurrent protection.
For engineers reviewing the MAX20072ATAA/V+T datasheet, MAX20072ATAA/V+T pinout, MAX20072ATAA/V+T application, or MAX20072ATAA/V+T equivalent, key selection criteria include its 1A output capability, 2.2MHz fixed-frequency PWM operation enabling all-ceramic designs, ±1.5% voltage accuracy without precision resistors, 0.85ms soft-start, and -40°C to +125°C automotive-grade operating range.
Technical Context
The MAX20072ATAA/V+T employs current-mode control architecture with internal high-side (80–300mΩ) and low-side (50–200mΩ) MOSFETs, supporting forced-PWM and pulse-skipping modes via SYNC pin configuration. Its 2.2MHz oscillator enables small external components and allows synchronization to external clocks between 1.7MHz and 2.4MHz.
It features a 0.5V internal reference, 107% OV / 93% UV monitoring on PGOOD, 1.4–1.6A current-limit threshold, and integrated thermal shutdown at +165°C with 15°C hysteresis - all validated across -40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1A continuous - supports high-density automotive SoC power rails without external FETs. |
| Input Voltage Range | 3.0V to 5.5V - compatible with 3.3V/5V intermediate bus and automotive battery-supplied systems. |
| Switching Frequency | 2.2MHz (±10%) - enables use of ≤2.2µH inductors and all-ceramic output capacitors (no electrolytics required). |
| Output Voltage Accuracy | ±1.5% over load, line, and temperature - eliminates need for 0.1% external feedback resistors in factory-preset mode. |
| Soft-Start Time | Fixed 0.85ms - limits inrush current during power-up, reducing stress on input capacitors and upstream supplies. |
| Operating Temperature | -40°C to +125°C ambient - qualified per AEC-Q100 for under-hood and infotainment applications. |
| Thermal Resistance | θJA = 85.3°C/W (4-layer board) - requires EP-to-ground vias for reliable 1A operation at full ambient range. |
Pinout & Package
Package: 8-pin TDFN-EP (2mm × 2mm × 0.85mm), RoHS-compliant, automotive-qualified (V suffix), tape-and-reel (T suffix). Exposed pad (EP) must be soldered to PCB ground plane with ≥3 thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AV | Analog supply | Separate analog rail for internal reference; requires 1µF capacitor + 10Ω series resistor to PV for noise immunity. |
| 2 SYNC | Synchronization input | Drives forced-PWM (PV or clock applied) or skip mode (GND or floating); enables dynamic efficiency optimization. |
| 3 PGND | Power ground | Dedicated ground return for high-current LX switching path; must be tied to EP and system GND at single point. |
| 4 PV | Main power input | 3.0–5.5V supply input; requires ≥4.7µF ceramic capacitor directly to PGND for EMI suppression. |
| 5 PG | Open-drain PGOOD | Active-low output asserting after 10µs delay when VOUT deviates >7%; requires external pullup ≥2kΩ. |
| 6 LX | Switch node | Connects to inductor's switched side; carries high di/dt; must minimize trace length and loop area. |
| 7 EN | Enable input | Active-high logic control (VIH = 1.5V min); initiates 0.85ms soft-start on rising edge, shutdown on falling edge. |
| 8 OUT | Feedback input | Accepts 0.5V reference; connects to resistor divider for adjustable outputs or directly to output cap for factory preset. |
Key Features
| Feature | Design Value |
|---|---|
| Current-mode PWM architecture | Enables fast transient response and stable operation with low-ESR ceramic output capacitors only. |
| Factory-preset output voltage | Configured at 10mV steps during manufacturing - achieves ±1.5% accuracy without external resistor matching. |
| Integrated overtemperature shutdown | Triggers at +165°C junction temperature with 15°C hysteresis - prevents thermal runaway in sealed enclosures. |
| Programmable PGOOD thresholds | 107% OV and 93% UV detection with 50µs hold time - ensures robust power sequencing in multi-rail systems. |
| 0.85ms internal soft-start | Eliminates need for external RC timing network - reduces BOM count and layout complexity. |
Applications
| ADAS Camera Power Supply | Automotive Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers 1.1V/1.2V core voltage for image signal processors in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering clean, tightly regulated 1A output with fast transient response to handle burst-mode ISP workloads. Use Value: ±1.5% output accuracy and 2.2MHz switching ensure minimal voltage droop during frame capture, while -40°C to +125°C rating supports under-hood mounting. | Use Scenario: Supplies 0.85V–1.0V core voltage to application processors in head-unit or digital cluster systems. IC Role / Device Role / Timing Role: Synchronous buck converter providing low-noise, high-efficiency regulation with PGOOD signaling for safe processor boot sequence. Use Value: Factory-preset output eliminates calibration overhead; ENABLE and PGOOD pins integrate seamlessly into automotive power management IC (PMIC) sequencing logic. |
| Automotive Telematics LTE Modem Rail | Body Control Module Microcontroller Supply |
Use Scenario: Generates 3.3V auxiliary rail for LTE/Wi-Fi communication modules requiring low EMI and high PSRR. IC Role / Device Role / Timing Role: Post-regulator stepping down from 5V main bus to noise-sensitive RF subsystems with spread-spectrum option disabled (per MAX20072ATAA/V+T spec). Use Value: 2.2MHz operation avoids AM radio band interference; all-ceramic design minimizes footprint and improves reliability vs. tantalum alternatives. | Use Scenario: Powers 3.3V I/O and 1.8V logic rails for microcontrollers managing door locks, lighting, and sensors. IC Role / Device Role / Timing Role: Compact, thermally robust DC-DC converter replacing linear regulators to reduce heat dissipation in space-constrained BCM housings. Use Value: 85.3°C/W θJA and EP thermal pad enable 1A delivery at +105°C ambient without derating; AEC-Q100 qualification ensures long-term field reliability. |
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 |
|---|---|---|---|
| MAX20072ATAB/V+ | Identical 1A, 2.2MHz regulator but includes enabled spread-spectrum oscillator (±3% frequency dither). | Preferred where EMI reduction is critical (e.g., near RF receivers); not suitable if deterministic switching timing is required. | Select MAX20072ATAB/V+ only if spread spectrum is needed; MAX20072ATAA/V+T offers lower EMI baseline without dither-induced jitter. |
| TPS6286418VRGTR | 1.2A, 2.25MHz converter with 0.6V–5.5V adjustable output, but lacks factory-preset option and automotive qualification. | Targeted at industrial/commercial portable devices; not AEC-Q100 qualified and rated only to +105°C ambient. | Choose TPS6286418VRGTR for cost-sensitive non-automotive designs needing higher current; MAX20072ATAA/V+T remains preferred for automotive production. |
Compared with MAX20072ATAB/V+, the MAX20072ATAA/V+T provides identical regulation performance without spread-spectrum modulation - simplifying EMI filtering and timing-critical applications. Against TPS6286418VRGTR, it trades higher current for guaranteed automotive qualification, tighter voltage accuracy, and factory-programmable outputs - making it the sole choice for Tier-1 automotive power rails.
Availability
MAX20072ATAA/V+T is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and telematics applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20072ATAA/V+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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX20072ATAA/V+T belongs to the MAX20071/MAX20072 family of automotive-grade, high-frequency synchronous buck converters designed specifically for compact, efficient point-of-load regulation in safety-critical vehicle subsystems.
FAQ
What is the maximum output current supported by the MAX20072ATAA/V+T?
The MAX20072ATAA/V+T supports up to 1A continuous output current across its full operating temperature range (-40°C to +125°C ambient), verified under worst-case conditions including 5.5V input and minimum output voltage. This rating assumes proper PCB thermal design with the exposed pad (EP) connected to a solid ground plane using ≥3 thermal vias and adhering to JEDEC JESD51-7 four-layer board standards.
Does the MAX20072ATAA/V+T require external feedback resistors to set the output voltage?
No - the MAX20072ATAA/V+T supports factory-preset output voltages configured in 10mV steps during manufacturing, achieving ±1.5% accuracy without external resistors. For custom voltages, two external resistors form a divider from VOUT to OUT to GND, referenced to the internal 0.5V feedback node. The MAX20072ATAA/V+T data sheet specifies R2 ≤ 100kΩ and provides Equation 5 for R1 calculation.
What is the function of the SYNC pin on the MAX20072ATAA/V+T?
The SYNC pin on the MAX20072ATAA/V+T selects between forced-PWM mode (SYNC tied to PV or driven by external clock 1.7–2.4MHz) and pulse-skipping mode (SYNC grounded or floating). In forced-PWM, switching occurs at constant 2.2MHz regardless of load; in skip mode, light-load efficiency improves by disabling switching cycles until output voltage droops below threshold - a feature confirmed in the MAX20072ATAA/V+T's Electrical Characteristics table and Detailed Description section.
Is the MAX20072ATAA/V+T qualified for automotive applications?
Yes - the MAX20072ATAA/V+T carries the /V suffix denoting AEC-Q100 qualification for automotive applications. It is specified to operate from -40°C to +125°C ambient temperature, includes overtemperature shutdown at +165°C junction temperature, and meets stringent automotive reliability and ESD requirements. Its tape-and-reel packaging (/T suffix) further supports automated SMT assembly in automotive production lines.
How does the PGOOD output behave during startup and fault conditions on the MAX20072ATAA/V+T?
The MAX20072ATAA/V+T's open-drain PGOOD (PG) pin asserts LOW after a 10µs propagation delay when VOUT falls below 93% or rises above 107% of regulation. During normal startup, PG remains LOW until VOUT stabilizes within this window, then transitions HIGH after 50µs hold time. Under fault (e.g., short circuit or overtemperature), PG pulls LOW again and stays LOW for 50µs after recovery - ensuring clean power sequencing in automotive systems per the device's Pin Description and Detailed Description sections.
MAX20072ATAA/V+T 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
MAX20072ATAA/V+T FAQ
1.How can I place an order for MAX20072ATAA/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20072ATAA/V+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 MAX20072ATAA/V+T reliable?
The price and inventory of MAX20072ATAA/V+T 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+T is usually 5 days.
3.What payment methods are accepted for MAX20072ATAA/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20072ATAA/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20072ATAA/V+T?
MAX20072ATAA/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20072ATAA/V+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 MAX20072ATAA/V+T?
For technical support, including MAX20072ATAA/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20072ATAA/V+T requirements.
6.How does Aetrix verify that MAX20072ATAA/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20072ATAA/V+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 MAX20072ATAA/V+T meets industry standards.
7.What is the process for return or replacement of MAX20072ATAA/V+T?
All MAX20072ATAA/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20072ATAA/V+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 MAX20072ATAA/V+T part is unused and in its original packaging.
Return procedure for MAX20072ATAA/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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