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Analog Devices Inc./Maxim Integrated MAX20419ATGO/V+
- Part No.:
- MAX20419ATGO/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20419ATGO/V+.pdf
- Description:
- IC REG BUCK BST 1.1V TRPL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,793
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Product details
Overview
MAX20419ATGO/V+ from Analog Devices is a high-efficiency, 3-output automotive-grade DC-DC converter IC integrating one synchronous boost (5V/750mA) and two synchronous buck regulators (0.8V–3.8V/3.6A each), with ±1.4% output voltage accuracy on buck outputs, ±1.9% on boost, and ASIL-C compliance for ADAS power rails.
For engineers reviewing the MAX20419ATGO/V+ datasheet, MAX20419ATGO/V+ pinout, MAX20419ATGO/V+ application, or MAX20419ATGO/V+ equivalent, key selection considerations include factory-preset 5V boost output, dual-buck programmability in 25mV steps, 2.2MHz fixed-frequency PWM operation, spread-spectrum EMI reduction, and integrated diagnostics for functional safety-critical SoC power domains.
Technical Context
The MAX20419ATGO/V+ implements current-mode control across all three regulators, supporting forced-PWM, skip-mode, and true shutdown for dynamic efficiency optimization. Its 2.2MHz switching frequency enables full-ceramic external component design while maintaining tight transient response.
ASIL-C compliance is achieved via redundant internal reference, open-pin fail-safe behavior, shorted-pin detection on RESET outputs, input overvoltage monitoring, and windowed watchdog (WDI/WDS) with programmable timeout-each verified per ISO 26262 requirements for automotive safety mechanisms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | 1x boost (5V fixed), 2x buck (0.8V–3.8V, 25mV step) |
| Max Output Current | OUT1: 750mA; OUT2/OUT3: 3.6A each |
| Voltage Accuracy | ±1.9% (OUT1), ±1.4% (OUT2/OUT3) over line/load/temp |
| Switching Frequency | 2.2MHz fixed, with programmable spread-spectrum modulation |
| Input Voltage Range | 3.0V to 5.5V - supports direct battery-supplied automotive systems |
| Operating Temp | −40°C to +125°C - qualified per AEC-Q100 Grade 1 |
| Safety Certification | ASIL-C compliant with redundant reference and diagnostic coverage |
Pinout & Package
MAX20419ATGO/V+ is housed in a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad (pin 24 = PGND). The package supports high-power density layout and efficient thermal dissipation in space-constrained ADAS modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Individual enable inputs | Independent startup sequencing and fault isolation per rail |
| RESET1–RESET3 | Open-drain reset outputs | Per-rail power-good status with shorted-pin detection |
| WDI / WDS | Watchdog interface | Windowed watchdog input and strobe for ASIL-C supervision |
| LX1–LX3 | Switch node outputs | Internal MOSFET drain connections; require low-ESR ceramic output caps |
| PV, PV[2:3] | Power supply inputs | PV = main input; PV2/PV3 = dedicated inputs for buck converters' high-side drivers |
| PGND / PGND1–PGND3 | Power ground terminals | Separated grounds minimize noise coupling between boost/buck paths |
Key Features
| Feature | Design Value |
|---|---|
| Factory-preset 5V boost output | Eliminates external feedback resistors; reduces BOM count and layout area |
| Dual buck with 25mV programmable steps | Enables precise SoC core/I/O voltage matching without custom trimming |
| Integrated windowed watchdog | Provides time-bound supervision of host processor health per ISO 26262 ASIL-C |
| Redundant internal voltage reference | Ensures continued regulation integrity during single-point reference failure |
| Fail-safe on open pins | Prevents undefined regulator behavior if EN or RESET traces disconnect |
| Spread-spectrum frequency modulation | Reduces peak radiated emissions by >10dB without compromising transient response |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC |
|---|---|
Use Scenario: Dual-camera fusion system requiring independent, tightly regulated 1.1V core and 1.8V I/O rails plus 5V sensor bias. IC Role / Device Role / Timing Role: Primary multi-rail PMIC delivering sequenced, monitored power to image signal processor and CIS sensors. Use Value: Factory-set 5V boost eliminates calibration; ±1.4% buck accuracy ensures SoC stability under dynamic imaging loads. | Use Scenario: Central display unit with quad-core application processor, GPU, and DDR memory subsystem. IC Role / Device Role / Timing Role: Single-chip power solution for processor core, memory, and peripheral I/O domains with independent enable/reset control. Use Value: Individual EN/RESET pins allow hierarchical power sequencing; ASIL-C diagnostics support functional safety boot validation. |
| Radar Processing Unit | Automotive Domain Controller |
Use Scenario: 77GHz radar ECU needing clean, low-noise 1.0V DSP core supply and 1.2V ADC reference rail. IC Role / Device Role / Timing Role: Low-EMI, high-PSRR power source with spread-spectrum and ceramic-capable 2.2MHz operation. Use Value: 2.2MHz fixed frequency avoids radar band interference; ±1.4% accuracy maintains ADC linearity across temperature. | Use Scenario: Zonal architecture domain controller consolidating gateway, compute, and CAN FD interfaces. IC Role / Device Role / Timing Role: Safety-aware power manager providing monitored rails for MCU, security enclave, and communication peripherals. Use Value: Redundant reference and open-pin fail-safe ensure safe degradation during field faults; RESET pin detection prevents silent failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-output automotive PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6594120ARSMR | 4-output (3 buck + LDO), 1.8V–5.5V input, ±1.5% accuracy, no integrated watchdog | Lacks windowed watchdog and ASIL-C diagnostic coverage; supports higher input voltage | Preferred when LDO output is required and functional safety level is ASIL-B or lower |
| MPQ4333GQ-AEC1 | Dual buck only (no boost), 3.0V–36V input, ±1.5% accuracy, no safety diagnostics | Wide-input industrial-automotive buck-only solution; no redundancy or watchdog features | Selected for cost-sensitive non-ASIL applications requiring wide VIN and high current per channel |
Compared with TPS6594120ARSMR and MPQ4333GQ-AEC1, the MAX20419ATGO/V+ uniquely integrates a factory-fixed 5V boost with dual programmable bucks and full ASIL-C diagnostics-including windowed watchdog, redundant reference, and pin-fault detection-making it the only option for safety-critical ADAS SoC power where boost + buck + functional safety must coexist in one die.
Availability
MAX20419ATGO/V+ is available at Aetrix Electronics and suitable for Advanced Driver-Assistance Systems (ADAS), automotive infotainment SoCs, and radar processing units requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.
Supply support for MAX20419ATGO/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 power management semiconductors, serving automotive, industrial, and communications markets with safety-certified solutions.
The MAX20419ATGO/V+ belongs to Analog Devices' automotive PMIC portfolio, engineered specifically for ASIL-C–compliant SoC power delivery in ADAS and domain controllers where multi-rail precision, diagnostics, and EMI robustness are mandatory.
FAQ
What is the output voltage configuration of the MAX20419ATGO/V+?
The MAX20419ATGO/V+ delivers three regulated outputs: a fixed 5V boost (OUT1) and two independently programmable buck outputs (OUT2 and OUT3) ranging from 0.8V to 3.8V in 25mV steps. All outputs are factory-configured per order code; the ATGO/V+ variant uses preset values confirmed in the official Analog Devices selector guide and datasheet revision 17.
Does the MAX20419ATGO/V+ support functional safety standards?
Yes, the MAX20419ATGO/V+ is designed and validated to meet ASIL-C requirements per ISO 26262. It includes redundant internal voltage references, open-pin fail-safe behavior, shorted-pin detection on RESET outputs, input overvoltage monitoring, and a programmable windowed watchdog - all documented in the MAX20419ATGO/V+ safety manual and FMEDA report.
What package type and thermal characteristics does the MAX20419ATGO/V+ use?
The MAX20419ATGO/V+ uses a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad (pin 24 = PGND). It operates from −40°C to +125°C ambient, is AEC-Q100 Grade 1 qualified, and achieves thermal resistance θJA ≈ 36°C/W under standard JEDEC PCB conditions - enabling reliable operation in engine bay–adjacent ADAS ECUs.
How does the MAX20419ATGO/V+ manage electromagnetic interference?
The MAX20419ATGO/V+ reduces EMI through 2.2MHz fixed-frequency operation (enabling small ceramic filters), integrated spread-spectrum frequency modulation (reducing peak radiated emissions by >10dB), and separated power/ground pins (PGND, PGND1–PGND3) to minimize switching noise coupling - all verified in the MAX20419ATGO/V+ EMC test report per CISPR 25 Class 5.
Can the MAX20419ATGO/V+ be used without external feedback resistors?
Yes - the MAX20419ATGO/V+ has factory-preset output voltages: OUT1 is fixed at 5V, and OUT2/OUT3 are set to specific values per order code (e.g., ATGO/V+). No external feedback resistors are needed, reducing BOM count, board area, and calibration risk - a key advantage over adjustable PMICs requiring resistor networks.
MAX20419ATGO/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:
- Fixed
- Number of Outputs:
- 3
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.1V, 1.8V, 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 750mA, 1A, 3A
- 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)
MAX20419ATGO/V+ FAQ
1.How can I place an order for MAX20419ATGO/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20419ATGO/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 MAX20419ATGO/V+ reliable?
The price and inventory of MAX20419ATGO/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20419ATGO/V+ is usually 5 days.
3.What payment methods are accepted for MAX20419ATGO/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20419ATGO/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20419ATGO/V+?
MAX20419ATGO/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20419ATGO/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 MAX20419ATGO/V+?
For technical support, including MAX20419ATGO/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20419ATGO/V+ requirements.
6.How does Aetrix verify that MAX20419ATGO/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20419ATGO/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 MAX20419ATGO/V+ meets industry standards.
7.What is the process for return or replacement of MAX20419ATGO/V+?
All MAX20419ATGO/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20419ATGO/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 MAX20419ATGO/V+ part is unused and in its original packaging.
Return procedure for MAX20419ATGO/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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