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Analog Devices Inc./Maxim Integrated MAX20416ATGD/V+T
- Part No.:
- MAX20416ATGD/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20416ATGD/V+T.pdf
- Description:
- IC REG BUCK ADJ 3A/3A DL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,370
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Product details
Overview
The MAX20416ATGD/V+T from Maxim Integrated is a dual-output, synchronous step-down DC-DC converter designed for automotive power rails. It operates from 3.0V to 5.5V input, delivers up to 3A per channel with ±1.5% output voltage accuracy, and features factory-configurable adjustable outputs (0.8V–3.8V) and 2.2MHz fixed-frequency PWM operation. It targets instrument cluster and infotainment subsystems requiring AEC-Q100-compliant, low-EMI, high-density power conversion.
For engineers reviewing the MAX20416ATGD/V+T datasheet, MAX20416ATGD/V+T pinout, MAX20416ATGD/V+T application, or MAX20416ATGD/V+T equivalent, key selection criteria include dual-channel current capability, spread-spectrum EMI reduction, independent enable/reset control, and 4mm × 4mm TQFN-24 packaging optimized for automotive thermal and layout constraints.
Technical Context
The MAX20416ATGD/V+T integrates two independent current-mode buck controllers with programmable soft-start (1.25ms or 2.5ms), cycle-by-cycle overcurrent protection, and thermal shutdown at +165°C with 15°C hysteresis. Each channel supports resistor-adjustable output voltage via external feedback dividers referenced to an 800mV internal VREF.
Its SYNC pin is factory-configured as an input enabling skip mode (light-load efficiency) or forced-PWM mode (EMI control); it accepts 1.8MHz–2.6MHz external clocks or drives other devices when configured as output. The IC uses integrated low-RDS(ON) MOSFETs (RHS ≤ 150mΩ, RLS ≤ 100mΩ) and supports all-ceramic output filtering with 47µF capacitors per rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - supports direct connection to automotive 3.3V/5V rails without pre-regulation |
| Output Voltage Range | 0.8V to 3.8V (adjustable) - enables flexible core/logic rail generation via external resistive divider |
| Max Output Current | 3A per channel - sufficient for powering SoC cores, FPGAs, or display interfaces in instrument clusters |
| Switching Frequency | 2.2MHz (±10%) - allows use of compact 0.47µH inductors and eliminates audible noise |
| Output Accuracy | ±1.5% over load/line/temp - ensures stable microcontroller or sensor supply under full automotive temperature range (−40°C to +125°C) |
| UV/OV Thresholds | 93%/107% of nominal output - provides precise reset assertion for system-level fault detection |
| Thermal Protection | 165°C shutdown with 15°C hysteresis - prevents damage during sustained overload or poor heatsinking |
Pinout & Package
MAX20416ATGD/V+T is housed in a lead(Pb)-free, RoHS-compliant 4mm × 4mm 24-pin TQFN package with exposed thermal pad (package code T2444+4C). The EP must be soldered to a solid ground plane for optimal thermal performance (θJA = 36°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | RESET2, RESET1 | Open-drain reset outputs asserting low when respective OUT2/OUT1 falls outside UV/OV window; require external pull-up for logic-level signaling |
| 5, 6 | EN1, EN2 | Independent active-high enable inputs with 1.0V threshold and 100mV hysteresis; support staggered startup sequencing |
| 7, 24 | OUT1, OUT2 | Feedback inputs for adjustable output configuration; connect to resistor divider midpoint to set VOUT = 0.8V × (1 + R1/R2) |
| 9, 22 | LX1, LX2 | Switch-node connections driving external inductors; require low-inductance routing to minimize EMI and voltage spikes |
| 10, 21 | PV1, PV2 | Power inputs for each buck channel; require local 4.7µF ceramic decoupling to PGND1/PGND2 |
| 11 | SYNC | Factory-configured input enabling skip mode (open/low) or forced-PWM (high/external clock); supports synchronization across multiple converters |
| 13, 17, 19, 20, 3, 4, 12, 14–16 | GND / PGND | Multiple ground terminals - all must be connected to a common low-impedance ground plane to ensure stability and EMI compliance |
| 18 | PV | Analog supply input; requires 1µF ceramic capacitor with 10Ω series resistor to reduce noise coupling into control circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent buck regulators | Enables separate power domains for CPU and GPU or digital and analog subsystems without cross-talk |
| Spread-spectrum frequency modulation | ±3% pseudorandom dithering reduces peak radiated emissions by >10dB, easing CISPR-25 Class 5 compliance |
| Individual EN and RESET signals | Allows per-rail power sequencing, fault isolation, and system-level watchdog integration without external logic |
| Current-mode control with slope compensation | Ensures stable operation across full load range and input voltage variation, even with low-ESR ceramic output caps |
| AEC-Q100 Grade-1 qualification | Validated for −40°C to +125°C operation with robust ESD (±2kV HBM), latch-up immunity, and lifetime reliability in automotive environments |
Applications
| Instrument Cluster Power | Infotainment Processor Rail |
|---|---|
Use Scenario: Supplies 1.2V core and 3.3V I/O rails to MCU and TFT display controller in digital instrument clusters. IC Role / Device Role / Timing Role: Dual synchronous buck regulator delivering tightly regulated, low-noise power with independent enable and reset monitoring. Use Value: Eliminates need for discrete regulators and external supervisors; meets ASIL-B functional safety requirements via built-in UV/OV detection and thermal shutdown. | Use Scenario: Powers application processor, DDR memory, and audio codec in automotive head units with dynamic load steps. IC Role / Device Role / Timing Role: High-efficiency dual buck converter operating in forced-PWM mode during video playback to suppress switching noise in analog audio paths. Use Value: Achieves >90% efficiency at 2A load while maintaining <20mV output ripple, reducing thermal stress and PCB area vs. discrete solutions. |
| ADAS Camera Module | Automotive Gateway ECU |
Use Scenario: Generates 1.8V image sensor core and 2.8V analog front-end supplies in surround-view camera modules. IC Role / Device Role / Timing Role: Adjustable-output buck pair supporting multiple sensor configurations via resistor programming; soft-start prevents inrush-induced bus droop. Use Value: Reduces BOM count by integrating two precision regulators and supervisor functions into single 4mm × 4mm footprint. | Use Scenario: Provides isolated 1.1V, 1.8V, and 3.3V rails for CAN/LIN transceivers, microcontroller, and Ethernet PHY in vehicle gateway ECUs. IC Role / Device Role / Timing Role: Dual buck with independent EN pins enables controlled power-up sequence aligned with ISO 11898-2 timing requirements. Use Value: Satisfies stringent automotive EMC limits via 2.2MHz switching and spread-spectrum modulation, avoiding band-specific interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS650361RSLR | Single 3.3V fixed + dual adjustable outputs; lower max current (2A/channel); no spread-spectrum | Targeted at industrial HMIs, not AEC-Q100 qualified | Choose for cost-sensitive non-automotive designs where EMI margin is less critical |
| MPQ4482GQ-AEC1-Z | Single-channel 3A buck; requires two ICs for dual output; higher RDS(ON) (120mΩ/75mΩ); no individual RESET outputs | Designed for ADAS domain controllers needing higher VIN (up to 36V) | Choose when input voltage exceeds 5.5V or when channel independence is less critical than input voltage range |
Compared with TPS650361RSLR and MPQ4482GQ-AEC1-Z, the MAX20416ATGD/V+T uniquely combines AEC-Q100 Grade-1 qualification, dual-channel adjustability, integrated spread-spectrum EMI reduction, and per-rail RESET signaling in a single 4mm × 4mm package-making it optimal for space-constrained, safety-critical automotive power nodes.
Availability
MAX20416ATGD/V+T is available at Aetrix Electronics and suitable for instrument cluster, infotainment, and ADAS camera module designs requiring stable component supply, automotive-grade reliability, and long-term production continuity.
Supply support for MAX20416ATGD/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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX20416 product line delivers highly integrated, AEC-Q100-qualified dual buck converters targeting next-generation automotive infotainment and digital cockpit systems demanding ultra-low EMI, precise voltage regulation, and compact power delivery.
FAQ
What output voltage options does the MAX20416ATGD/V+T support?
The MAX20416ATGD/V+T supports resistor-adjustable outputs from 0.8V to 3.8V per channel, using external feedback dividers referenced to its internal 800mV VREF. Unlike fixed-voltage variants (e.g., MAX20416ATGA/V+), this version has no factory-preset outputs and requires R1/R2 selection per Equation 5 in the datasheet. Its ordering code "ATGD" explicitly denotes the adjustable configuration.
How does the MAX20416ATGD/V+T handle light-load efficiency?
The MAX20416ATGD/V+T improves light-load efficiency via pulse-frequency modulation (skip mode), activated when the SYNC pin is held low or left floating. In skip mode, the IC disables switching cycles until output voltage drops below the regulation threshold, reducing gate charge and switching losses. This achieves >85% efficiency at 10mA load, versus ~65% in forced-PWM mode.
What thermal management provisions does the MAX20416ATGD/V+T include?
The MAX20416ATGD/V+T incorporates thermal shutdown at +165°C (typical) with 15°C hysteresis, allowing automatic recovery once junction temperature falls below +150°C. Its 4mm × 4mm TQFN package features an exposed pad thermally connected to the die substrate, achieving θJA = 36°C/W on a 4-layer board - critical for sustained 3A operation in sealed automotive enclosures.
Can the MAX20416ATGD/V+T synchronize to an external clock?
Yes - the MAX20416ATGD/V+T's SYNC pin is factory-configured as an input that accepts external clock signals from 1.8MHz to 2.6MHz. When driven by an external source, the internal oscillators lock to that frequency, enabling deterministic EMI reduction and multi-rail synchronization. This capability is retained in the ATGD variant and documented in the Synchronization section of the datasheet.
What protection features are integrated into the MAX20416ATGD/V+T?
The MAX20416ATGD/V+T integrates cycle-by-cycle overcurrent limiting, thermal shutdown with hysteresis, undervoltage lockout (2.7V rising), overvoltage/undervoltage detection on both outputs (±3% accuracy), and short-circuit protection with automatic recovery. These features are active across the full −40°C to +125°C automotive temperature range and do not require external components.
MAX20416ATGD/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 3.8V
- Current - Output:
- 3A, 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX20416ATGD/V+T FAQ
1.How can I place an order for MAX20416ATGD/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20416ATGD/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 MAX20416ATGD/V+T reliable?
The price and inventory of MAX20416ATGD/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 MAX20416ATGD/V+T is usually 5 days.
3.What payment methods are accepted for MAX20416ATGD/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20416ATGD/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20416ATGD/V+T?
MAX20416ATGD/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20416ATGD/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 MAX20416ATGD/V+T?
For technical support, including MAX20416ATGD/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20416ATGD/V+T requirements.
6.How does Aetrix verify that MAX20416ATGD/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20416ATGD/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 MAX20416ATGD/V+T meets industry standards.
7.What is the process for return or replacement of MAX20416ATGD/V+T?
All MAX20416ATGD/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20416ATGD/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 MAX20416ATGD/V+T part is unused and in its original packaging.
Return procedure for MAX20416ATGD/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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