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Analog Devices Inc./Maxim Integrated MAX20419ATGV/V+
- Part No.:
- MAX20419ATGV/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20419ATGV/V+.pdf
- Description:
- IC REG BUCK BST PRG/0.8V 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,707
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Product details
Overview
MAX20419ATGV/V+ from Analog Devices is a high-efficiency, 3-output automotive-grade DC-DC converter IC featuring a synchronous 750mA boost regulator fixed at 5V (OUT1), and two synchronous buck converters delivering up to 3.6A each with factory-programmable outputs from 0.8V to 3.8V (OUT2/OUT3). It operates from 3.0V–5.5V input, achieves ±1.9% output accuracy on OUT1 and ±1.4% on OUT2/OUT3, and supports ASIL-C–compliant ADAS power domains.
For engineers reviewing the MAX20419ATGV/V+ datasheet, MAX20419ATGV/V+ pinout, MAX20419ATGV/V+ application, or MAX20419ATGV/V+ equivalent, key selection considerations include its 2.2MHz fixed-frequency PWM mode, programmable spread-spectrum EMI reduction, individual RESET outputs, and integrated diagnostics for functional safety-critical SoC power rails.
Technical Context
The MAX20419ATGV/V+ integrates three independent switching regulators-OUT1 as a fixed 5V boost, OUT2 and OUT3 as adjustable synchronous bucks-with current-mode control, forced-PWM and skip-mode operation, and internal low-RDS(ON) FETs. Its 2.2MHz switching frequency enables all-ceramic output filtering and compact layout.
Designed for ASIL-C compliance, it includes redundant voltage references, open-pin fail-safe behavior, shorted-pin detection on RESET outputs, input overvoltage monitoring, and a programmable windowed watchdog-enabling diagnostic coverage in safety-critical automotive power systems without external supervision circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - supports direct connection to automotive battery rail with transient tolerance. |
| OUT1 Output | Fixed 5.0V @ 750mA - powers USB peripherals, sensors, or interface logic requiring stable 5V supply. |
| OUT2/OUT3 Output | 0.8V–3.8V @ 3.6A each - factory-configurable in 25mV steps for SoC core/I/O rails. |
| Output Accuracy | ±1.9% (OUT1), ±1.4% (OUT2/OUT3) - ensures tight regulation across load, line, and –40°C to +125°C. |
| Switching Frequency | 2.2MHz fixed - allows use of small 0.47µH inductors and ceramic capacitors; reduces EMI peak energy. |
| EMI Reduction | Programmable spread-spectrum modulation - lowers radiated emissions without external filters. |
| Operating Temp | –40°C to +125°C - qualified for under-hood and ADAS ECU environments. |
Pinout & Package
Package: 24-pin, 4mm × 4mm TQFN with exposed thermal pad (pin pitch: 0.5mm). RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Individual enable inputs | Independent startup sequencing control for each regulator output; active-high, CMOS-compatible. |
| RESET1, RESET2, RESET3 | Open-drain reset outputs | Assert low when corresponding output is out-of-regulation; shorted-pin detect prevents false resets. |
| WDI, WDS | Watchdog interface | Windowed watchdog input and status output - enables system-level fault detection and recovery coordination. |
| PV, PV[2:3] | Power supply monitor inputs | Monitor input rail and buck input voltages for overvoltage/undervoltage protection with ±1.3% threshold accuracy. |
| LX1–LX3 | Switch node outputs | Connect to external inductors; require low-inductance routing to minimize switching losses and EMI. |
| PGND1–PGND3 | Power ground returns | Dedicated ground paths per regulator - reduce cross-talk and improve transient response isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous boost + dual buck topology | Single-chip solution replaces discrete PMIC + LDO combinations, reducing BOM count and PCB area by >40%. |
| ASIL-C–compliant diagnostics | Redundant reference, open-pin fail-safe, and shorted-pin detection on RESET outputs meet ISO 26262 requirements. |
| 2.2MHz fixed-frequency PWM | Enables use of 0.47µH inductors and eliminates need for electrolytic or tantalum output capacitors. |
| Programmable spread-spectrum modulation | Reduces peak radiated EMI by up to 10dB without altering layout or adding shielding. |
| Individual soft-start and RESET outputs | Allows precise power-up sequencing and independent fault reporting for multi-rail SoC applications. |
Applications
| ADAS Camera Module Power | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers image sensor, ISP, and SerDes in front/rear camera ECUs with strict EMI limits and thermal constraints. IC Role / Device Role / Timing Role: Primary power management IC delivering 5V (sensor bias), 1.1V (ISP core), and 1.8V (SerDes I/O) simultaneously. Use Value: 2.2MHz operation avoids AM-band interference; ASIL-C diagnostics support functional safety certification. | Use Scenario: Supplies multiple voltage domains of automotive infotainment SoCs (e.g., NPU, GPU, memory I/O). IC Role / Device Role / Timing Role: Triple-output PMIC providing sequenced, monitored, and protected power to heterogeneous processing cores. Use Value: Factory-configurable 25mV steps enable exact match to SoC VDD requirements; individual RESET signals simplify fault isolation. |
| Radar Processor Supply | Domain Controller Low-Voltage Rail |
Use Scenario: Powers mmWave radar processors requiring clean, tightly regulated 1.0V core and 1.2V analog supplies. IC Role / Device Role / Timing Role: High-precision dual-buck regulator with ±1.4% accuracy and fast load-transient response. Use Value: Current-mode control and 2.2MHz switching deliver <50mV droop during 2A step loads - maintains processor stability. | Use Scenario: Delivers auxiliary 3.3V and 5V rails for domain controller communication interfaces (CAN FD, Ethernet PHY). IC Role / Device Role / Timing Role: Boost + buck combination supplying isolated, monitored, and EMI-optimized interface power. Use Value: Integrated 5V boost eliminates need for separate charge pump; PV OV detection protects against battery surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail automotive PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6594121RGER | Quad-buck + LDO architecture; no integrated boost; 1.8MHz max switching frequency; requires external watchdog. | Targets higher-channel-count SoCs but lacks native 5V boost and ASIL-C diagnostic coverage. | Choose when needing >3 buck rails and lower cost, but accept added complexity for 5V generation and safety monitoring. |
| MPQ4333GQ-AEC1 | Dual-buck only; no boost; no integrated diagnostics or watchdog; 2.2MHz operation; AEC-Q100 Grade 1 (–40°C to +125°C). | Supports basic dual-rail ADAS modules but not ASIL-C–rated systems or 5V peripheral power. | Choose for cost-sensitive, non-safety-critical dual-buck applications where 5V must be generated externally. |
Compared with TPS6594121RGER and MPQ4333GQ-AEC1, the MAX20419ATGV/V+ uniquely integrates a 5V boost, ASIL-C diagnostics, and triple-output regulation in a single 4mm × 4mm package-reducing system-level validation effort and board space for safety-compliant ADAS power designs.
Availability
MAX20419ATGV/V+ is available at Aetrix Electronics and suitable for advanced driver-assistance systems (ADAS), infotainment SoC power, and radar processor supply requiring stable component supply, long-term automotive qualification, and functional safety support.
Supply support for MAX20419ATGV/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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The MAX20419ATGV/V+ belongs to Analog Devices' automotive power management IC portfolio, designed specifically to deliver integrated, ASIL-C–compliant multi-rail power solutions for next-generation ADAS and domain controller architectures.
FAQ
What is the output voltage configuration of the MAX20419ATGV/V+?
The MAX20419ATGV/V+ has a fixed 5.0V boost output (OUT1) and two factory-programmable buck outputs (OUT2/OUT3) ranging from 0.8V to 3.8V in 25mV steps. Configuration is set at manufacturing; no external resistors or I²C interface are required. This simplifies design and improves reliability in automotive applications where field reconfiguration is not needed.
Does the MAX20419ATGV/V+ support functional safety standards?
Yes, the MAX20419ATGV/V+ is designed to support ASIL-C compliance per ISO 26262. It includes redundant voltage references, open-pin fail-safe behavior, shorted-pin detection on RESET outputs, input overvoltage monitoring, and a programmable windowed watchdog. These features enable diagnostic coverage without external supervision, reducing system-level safety hardware requirements.
What is the switching frequency and EMI mitigation capability of the MAX20419ATGV/V+?
The MAX20419ATGV/V+ operates at a fixed 2.2MHz switching frequency and includes programmable spread-spectrum frequency modulation. This combination minimizes peak radiated EMI-up to 10dB reduction-while enabling compact 0.47µH inductors and all-ceramic output filtering. No external EMI filters or shielding are required for most automotive EMC test profiles.
How does the MAX20419ATGV/V+ handle thermal and overload conditions?
The MAX20419ATGV/V+ integrates overtemperature and overcurrent protection for all three regulators. Thermal shutdown activates at +150°C junction temperature with automatic restart after cooldown. Cycle-by-cycle current limiting prevents damage during short-circuit events. These protections are fully internal-no external components are needed to implement robust fault handling.
What package type and thermal performance does the MAX20419ATGV/V+ use?
The MAX20419ATGV/V+ uses a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad. It is rated for –40°C to +125°C ambient operation and supports continuous 3.6A output per buck channel with proper PCB copper area and airflow. The exposed pad must be soldered to a thermal plane for optimal junction-to-board thermal resistance (θJB = 12°C/W typical).
MAX20419ATGV/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, Buck
- Output Type:
- Programmable (Fixed)
- Number of Outputs:
- 3
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V (5V)
- Voltage - Output (Max):
- 3.8V
- Current - Output:
- 750mA, 3.6A, 3.6A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX20419ATGV/V+ FAQ
1.How can I place an order for MAX20419ATGV/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20419ATGV/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 MAX20419ATGV/V+ reliable?
The price and inventory of MAX20419ATGV/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20419ATGV/V+ is usually 5 days.
3.What payment methods are accepted for MAX20419ATGV/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20419ATGV/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20419ATGV/V+?
MAX20419ATGV/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20419ATGV/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 MAX20419ATGV/V+?
For technical support, including MAX20419ATGV/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20419ATGV/V+ requirements.
6.How does Aetrix verify that MAX20419ATGV/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20419ATGV/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 MAX20419ATGV/V+ meets industry standards.
7.What is the process for return or replacement of MAX20419ATGV/V+?
All MAX20419ATGV/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20419ATGV/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 MAX20419ATGV/V+ part is unused and in its original packaging.
Return procedure for MAX20419ATGV/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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