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Analog Devices Inc./Maxim Integrated MAX20071ATAA/V+T
- Part No.:
- MAX20071ATAA/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX20071ATAA/V+T.pdf
- Description:
- IC REG BUCK ADJ 600MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,367
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Product details
Overview
MAX20071ATAA/V+T from Analog Devices is a 600mA, 2.2MHz synchronous step-down DC-DC converter in an 8-pin TDFN-EP package. It operates from 3.0V to 5.5V input, delivers output from 0.5V to 3.8V with ±1.5% accuracy, and features enable input, PGOOD output, and fixed 0.85ms soft-start-designed for automotive point-of-load regulation.
For engineers reviewing the MAX20071ATAA/V+T datasheet, MAX20071ATAA/V+T pinout, MAX20071ATAA/V+T application, or MAX20071ATAA/V+T equivalent, this page provides verified electrical parameters, thermal behavior, synchronization modes (PWM/skip), current-limit thresholds, and layout-critical pin functions including LX, PGND, and exposed-pad grounding requirements.
Technical Context
The MAX20071ATAA/V+T employs current-mode control with internal high-side (80–300mΩ) and low-side (50–200mΩ) MOSFETs, enabling stable operation across -40°C to +125°C ambient. Its 2.2MHz fixed-frequency PWM architecture supports all-ceramic designs and allows external synchronization or spread-spectrum operation (±3%).
It integrates UVLO (2.4–2.55V rising), overtemperature shutdown (165°C), and cycle-by-cycle current limiting (0.9–1.1A). The device supports both factory-preset and resistor-adjustable outputs via a 0.5V internal reference, with PGOOD monitoring ±7% output deviation and 50µs hold time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 600mA maximum continuous - sufficient for microcontroller core rails and automotive sensors. |
| Input Voltage Range | 3.0V to 5.5V - compatible with 3.3V/5V system rails and automotive battery transients. |
| Switching Frequency | 2.2MHz (±10%) - enables compact 2.2µH inductors and all-ceramic 4.7µF/10µF input/output capacitors. |
| Output Voltage Accuracy | ±1.5% over line, load, and temperature - eliminates need for 0.1% external resistors in fixed-output configurations. |
| Soft-Start Time | Fixed 0.85ms - limits inrush current during power-up without requiring external components. |
| Thermal Shutdown | 165°C junction with 15°C hysteresis - protects against sustained overload or poor PCB heat sinking. |
| PGOOD Threshold | ±7% output deviation with 50µs active hold - ensures reliable system power sequencing and fault detection. |
Pinout & Package
Package: 8-pin TDFN-EP (2mm × 2mm × 0.85mm) with exposed pad (EP) thermally connected to PGND. RoHS-compliant, automotive-qualified (AEC-Q100 Grade 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AV | Analog supply rail | Separate low-noise analog supply input; requires 1µF capacitor + 10Ω series resistor to PV for EMI suppression. |
| 2 SYNC | Synchronization control | Drives forced-PWM mode when pulled high to PV; enables skip mode when grounded or floating - no external clock required. |
| 3 PGND | Power ground return | Low-impedance return path for high-current switching loops; must be tied directly to EP and system GND plane. |
| 4 PV | Main power input | 3.0–5.5V supply input; requires ≥4.7µF ceramic capacitor placed adjacent to pin for transient current handling. |
| 5 PG | Open-drain power-good signal | Active-low status flag with 50µs hold time after regulation recovery; requires external pullup ≥2kΩ to I/O rail. |
| 6 LX | Switch node | Connection to inductor's switched side; carries high dv/dt and peak currents - shortest possible trace length critical. |
| 7 EN | Enable control | Active-high logic input (VIH = 1.5V min); initiates 0.85ms soft-start on rising edge and full shutdown on falling edge. |
| 8 OUT | Feedback input | Connects to resistor divider (0.5V reference) for adjustable output; or directly to output capacitor in factory-preset mode. |
| EP | Exposed thermal pad | Internally connected to PGND; requires ≥3 vias (0.3mm) to inner ground planes for thermal dissipation (θJA = 85.3°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Current-mode PWM control | Enables fast transient response and inherent cycle-by-cycle current limiting without external sensing. |
| Factory-preset or resistor-adjustable output | Supports ±1.5% accuracy at 0.5V–3.8V without precision resistors; uses internal 0.5V reference for external feedback. |
| Integrated thermal and overcurrent protection | Shuts down at 165°C junction and limits peak current to 0.9–1.1A - prevents damage during short-circuit or overload. |
| Ultra-small 2mm × 2mm footprint | Reduces board area by >50% vs. comparable SOIC-8 regulators; enables dense automotive ADAS and infotainment layouts. |
| Automotive-grade (-40°C to +125°C) | Qualified per AEC-Q100 Grade 1; validated for under-hood and dashboard environments with full parametric performance. |
Applications
| ADAS Camera Power Rail | Infotainment SoC Core Supply |
|---|---|
|
Use Scenario: Powers image sensor and ISP in rear-view or surround-view camera modules operating in vehicle cabin or exterior mounting locations. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 1.2V/1.8V at up to 600mA with <±1.5% tolerance across temperature and load steps. Use Value: Enables first-pass design success with all-ceramic passive set and minimal layout area - critical for space-constrained camera housings. |
Use Scenario: Supplies core voltage to automotive infotainment processors (e.g., NXP i.MX8, Qualcomm SA8155) requiring tight regulation and fast load transient response. IC Role / Device Role / Timing Role: Synchronous buck converter with 2.2MHz switching and PGOOD signaling for safe processor boot and reset coordination. Use Value: Delivers 600mA at ±1.5% accuracy while supporting dynamic voltage scaling via external resistor network - reducing BOM count vs. discrete solutions. |
| Automotive Body Control Module (BCM) | Telematics Control Unit (TCU) Subsystem |
|
Use Scenario: Regulates power for LIN/CAN transceivers, LED drivers, and microcontrollers in door modules, seat controllers, and lighting nodes. IC Role / Device Role / Timing Role: Compact, robust DC-DC stage converting 5V system rail to 3.3V/2.5V logic supplies with integrated EN and PGOOD for diagnostics. Use Value: Automotive qualification and -40°C to +125°C operation ensure reliability in harsh under-dash environments with minimal derating. |
Use Scenario: Provides clean, regulated 1.1V or 1.2V supply to cellular modem baseband processors and GNSS receivers in telematics gateways. IC Role / Device Role / Timing Role: Low-noise, high-efficiency step-down converter with AV pin decoupling and spread-spectrum option to reduce EMI in RF-sensitive subsystems. Use Value: 2.2MHz operation avoids interference with LTE/GNSS bands; ±7% PGOOD window enables precise power sequencing with modem firmware. |
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 |
|---|---|---|---|
| TPS62840DLCR | Lower quiescent current (300nA), 1.8–5.5V input, but only 600mA output and no PGOOD or SYNC pin. | Limited to ultra-low-power always-on subsystems; lacks automotive qualification and diagnostic signaling. | Select when lowest IQ dominates over diagnostics and thermal robustness - not drop-in for MAX20071ATAA/V+T. |
| MPQ4420AGL-A-Z | Higher output current (2A), wider input (4–36V), but larger 3mm × 4mm QFN and no spread spectrum or automotive grade. | Suitable for industrial 12V/24V systems; incompatible with automotive thermal and EMI requirements. | Choose for higher-power non-automotive applications where size and qualification are secondary to current capability. |
Compared with TPS62840DLCR and MPQ4420AGL-A-Z, the MAX20071ATAA/V+T uniquely balances automotive qualification, compact 2mm × 2mm footprint, integrated PGOOD/SYNC, and ±1.5% accuracy - making it optimal for space-constrained, safety-aware vehicle subsystems.
Availability
MAX20071ATAA/V+T is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, and body electronics requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for MAX20071ATAA/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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX20071ATAA/V+T belongs to Analog Devices' automotive-qualified power management portfolio, engineered specifically for demanding point-of-load regulation in ADAS, infotainment, and body electronics with emphasis on thermal resilience, EMI control, and functional safety readiness.
FAQ
What is the maximum output current rating of the MAX20071ATAA/V+T?
The MAX20071ATAA/V+T is rated for up to 600mA continuous output current. This value is confirmed in the Ordering Information table and Electrical Characteristics section under "Current-Limit Threshold" (ILIM = 0.9–1.1A typical), with thermal derating applied above ambient temperatures exceeding +70°C. The MAX20071ATAA/V+T is distinct from the 1A-rated MAX20072 variants.
Does the MAX20071ATAA/V+T support external synchronization?
Yes, the MAX20071ATAA/V+T supports external synchronization via the SYNC pin. When driven high (to PV or an external clock source), it forces fixed-frequency PWM operation at 2.2MHz. When grounded or left floating, it enters pulse-skipping mode for improved light-load efficiency - both modes are fully supported without hardware modification.
What is the purpose of the AV pin on the MAX20071ATAA/V+T?
The AV pin on the MAX20071ATAA/V+T provides a dedicated low-noise analog supply for internal reference and control circuitry. It must be connected to PV through a 10Ω resistor and decoupled with a 1µF ceramic capacitor to GND. This separation minimizes noise coupling from high-current PV switching into sensitive analog blocks, improving output voltage stability and PGOOD accuracy.
Can the MAX20071ATAA/V+T operate without external feedback resistors?
Yes, the MAX20071ATAA/V+T can operate without external feedback resistors when configured as a factory-preset device. In that mode, the OUT pin connects directly to the output capacitor, and the output voltage is trimmed at wafer level in 10mV steps to achieve ±1.5% accuracy - eliminating the need for precision external resistors in fixed-voltage applications.
Is the MAX20071ATAA/V+T qualified for automotive use?
Yes, the MAX20071ATAA/V+T is automotive-qualified per AEC-Q100 Grade 1, with guaranteed operation from -40°C to +125°C ambient temperature. The "/V+" suffix explicitly denotes automotive qualification and RoHS compliance, and the device includes built-in protections (overtemperature, overcurrent, UVLO) required for under-hood and cabin-mounted vehicle electronics.
MAX20071ATAA/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:
- 600mA
- 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)
MAX20071ATAA/V+T FAQ
1.How can I place an order for MAX20071ATAA/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20071ATAA/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 MAX20071ATAA/V+T reliable?
The price and inventory of MAX20071ATAA/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 MAX20071ATAA/V+T is usually 5 days.
3.What payment methods are accepted for MAX20071ATAA/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20071ATAA/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20071ATAA/V+T?
MAX20071ATAA/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20071ATAA/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 MAX20071ATAA/V+T?
For technical support, including MAX20071ATAA/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20071ATAA/V+T requirements.
6.How does Aetrix verify that MAX20071ATAA/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20071ATAA/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 MAX20071ATAA/V+T meets industry standards.
7.What is the process for return or replacement of MAX20071ATAA/V+T?
All MAX20071ATAA/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20071ATAA/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 MAX20071ATAA/V+T part is unused and in its original packaging.
Return procedure for MAX20071ATAA/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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