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Analog Devices Inc./Maxim Integrated MAX20419ATGG/V+T
- Part No.:
- MAX20419ATGG/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20419ATGG/V+T.pdf
- Description:
- IC REG BCK BST 1.25V TRPL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,206
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Product details
Overview
MAX20419ATGG/V+T 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 converters (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 systems.
For engineers reviewing the MAX20419ATGG/V+T datasheet, MAX20419ATGG/V+T pinout, MAX20419ATGG/V+T application, or MAX20419ATGG/V+T equivalent, key selection considerations include factory-preset 5V boost output, dual-buck programmability in 25mV steps, 2.2MHz fixed-frequency PWM operation, integrated low-RDS(ON) switches, and diagnostic features including windowed watchdog and open-pin fail-safe behavior.
Technical Context
The MAX20419ATGG/V+T implements current-mode control across all three regulators, supporting forced-PWM, skip-mode, and true shutdown. Its 2.2MHz switching frequency enables all-ceramic external component design while maintaining excellent load-transient response and radiated EMI suppression via programmable spread-spectrum modulation.
Redundant internal references, independent RESET outputs per rail, PV supply overvoltage detection, and shorted-pin detection on RESET1–RESET3 support functional safety requirements for ASIL-C systems. The IC operates across –40°C to +125°C and accepts 3.0V–5.5V input across its entire temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | 1x boost (5V fixed), 2x buck (0.8V–3.8V, factory-programmed in 25mV steps) |
| Max Output Current | 750mA (OUT1 boost), 3.6A each (OUT2/OUT3 buck) |
| Output Voltage Accuracy | ±1.9% (OUT1), ±1.4% (OUT2/OUT3) over line/load/temp |
| Switching Frequency | 2.2MHz fixed, enabling compact all-ceramic filter design |
| Operating Temp Range | –40°C to +125°C, qualified per AEC-Q100 Grade 1 |
| Protection Features | Overcurrent, overtemperature, input overvoltage, open-pin fail-safe, shorted-pin detection |
| Safety Certification | ASIL-C compliant with redundant reference and windowed watchdog |
Pinout & Package
MAX20419ATGG/V+T is housed in a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad (package code: TGG). Pin functions are validated per Analog Devices' MAX20419 datasheet Rev 17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Individual enable inputs | Independent control of boost (EN1) and each buck (EN2/EN3) for sequencing and fault isolation |
| RESET1, RESET2, RESET3 | Open-drain reset outputs | Active-low reset signals per regulator, with shorted-pin detection capability |
| WDI / WDS | Watchdog interface | Windowed watchdog input (WDI) and status output (WDS) for ASIL-C monitoring |
| PV, PV_OV | Main supply input / OV sense | PV powers internal circuitry; PV_OV enables input overvoltage protection at 6.2V threshold |
| LX1–LX3 | Switch node terminals | Power switch connections for boost (LX1) and buck (LX2/LX3) stages; require proper layout for EMI and thermal performance |
| PGND1–PGND3 | Power ground returns | Dedicated power ground pins per regulator to minimize cross-regulator noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Factory-configurable buck outputs | 0.8V–3.8V in precise 25mV steps-eliminates external resistor networks and reduces BOM count |
| Programmable spread-spectrum modulation | Reduces peak radiated emissions by >10dB without compromising transient response or efficiency |
| Redundant internal voltage reference | Enables cross-checking of output regulation and supports ASIL-C diagnostic coverage requirements |
| Fail-safe on open pins | Automatic shutdown and fault reporting when critical pins (e.g., EN, WDI) are left floating or disconnected |
| Individual RESET outputs with short detection | Each RESET pin self-monitors for shorts-to-ground or shorts-to-rail, improving system-level fault diagnosis |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Supply |
|---|---|
Use Scenario: Dual-camera front-facing ADAS module requiring isolated, sequenced 5V (image sensor), 1.1V (ISP), and 1.8V (SoC I/O) rails. IC Role / Device Role / Timing Role: Primary triple-output PMIC delivering regulated, monitored, and safety-diagnosed power to vision processing chain. Use Value: Enables single-chip power solution with ASIL-C diagnostics, eliminating discrete supervisor + multiple DC-DCs and reducing board area by >40%. | Use Scenario: Central infotainment head unit powering application processor (1.0V core), GPU (1.1V), and DDR memory interface (1.8V/3.3V). IC Role / Device Role / Timing Role: System PMIC managing startup sequencing, dynamic voltage scaling, and real-time rail health monitoring. Use Value: Factory-programmed 25mV-step buck outputs match exact SoC VDD requirements; windowed watchdog ensures safe reboots during firmware updates. |
| Radar ECU Core Power | Domain Controller Low-Voltage Subsystem |
Use Scenario: 77GHz radar ECU needing clean, low-noise 5V analog supply and tightly regulated 1.2V digital core voltage under wide temperature swings. IC Role / Device Role / Timing Role: High-precision, thermally robust DC-DC source with ±1.4% buck accuracy and –40°C to +125°C operation. Use Value: Maintains SoC timing margins across full automotive temperature range without derating; 2.2MHz operation avoids AM band interference. | Use Scenario: Zonal domain controller consolidating gateway, CAN FD, and Ethernet functions, requiring independent, monitorable 3.3V, 1.8V, and 5V rails. IC Role / Device Role / Timing Role: Safety-aware multi-rail power manager with individual RESET signaling and PV overvoltage protection. Use Value: Detects and reports open/short faults on any enable or reset line-critical for OTA update integrity and fail-operational architecture. |
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 |
|---|---|---|---|
| TPS6594131RWER | 4-output PMIC (3 buck + LDO), 1.8V–5.5V input, ±1.5% accuracy, no integrated watchdog or ASIL-C diagnostics | Targeted at general automotive body electronics-not certified for ASIL-C ADAS subsystems | Choose when ASIL-C compliance is not required and LDO integration is preferred over boost capability |
| MPQ4333GQ-AEC1 | Dual 3.5A buck only (no boost), 3.0V–36V input, ±1.5% accuracy, no safety diagnostics or windowed watchdog | Designed for wide-input industrial/automotive non-ADAS applications; lacks rail-specific RESET and redundancy | Choose for cost-sensitive, non-safety-critical 12V battery-fed systems where 5V boost is unnecessary |
Compared with TPS6594131RWER and MPQ4333GQ-AEC1, the MAX20419ATGG/V+T uniquely combines 5V boost + dual buck, ASIL-C certification, factory-programmed 25mV-step outputs, and per-rail diagnostic signaling-making it the only option qualified for safety-critical ADAS camera and radar ECU power delivery.
Availability
MAX20419ATGG/V+T is available at Aetrix Electronics and suitable for advanced driver-assistance systems (ADAS), automotive infotainment SoC power, and domain controller low-voltage subsystems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for MAX20419ATGG/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 power management semiconductors, serving automotive, industrial, communications, and healthcare markets with precision signal chain and power solutions.
The MAX20419ATGG/V+T belongs to Analog Devices' automotive-qualified PMIC portfolio, engineered specifically to meet ASIL-C functional safety requirements in ADAS and automated driving ECUs while minimizing external component count and PCB footprint.
FAQ
What is the factory-set output voltage configuration for MAX20419ATGG/V+T?
The MAX20419ATGG/V+T has OUT1 factory-set to 5.0V (boost), while OUT2 and OUT3 are factory-programmed to specific voltages within the 0.8V–3.8V range in 25mV increments. Exact values for this variant are defined in the Ordering Information table of the MAX20419 datasheet Rev 17 and cannot be altered post-manufacture.
Does MAX20419ATGG/V+T support power sequencing between its three outputs?
Yes, MAX20419ATGG/V+T supports flexible power sequencing via independent enable inputs (EN1, EN2, EN3) and individual open-drain RESET outputs (RESET1–RESET3). This allows controlled turn-on/turn-off order and fault-triggered shutdown of downstream logic without external circuitry.
Is MAX20419ATGG/V+T qualified for automotive applications?
Yes, MAX20419ATGG/V+T is AEC-Q100 Grade 1 qualified (–40°C to +125°C) and designed to meet ASIL-C requirements per ISO 26262, with redundant reference, windowed watchdog, open-pin fail-safe, and shorted-pin detection on critical signals.
Can MAX20419ATGG/V+T operate with all-ceramic output capacitors?
Yes, MAX20419ATGG/V+T's 2.2MHz fixed-frequency operation and current-mode control architecture are optimized for stable regulation with all-ceramic capacitor networks-eliminating the need for electrolytic or tantalum capacitors and reducing solution size and cost.
What protection features are integrated into MAX20419ATGG/V+T?
MAX20419ATGG/V+T integrates overcurrent protection on all three outputs, overtemperature shutdown, input overvoltage detection (PV_OV), open-pin detection on EN/WDI pins, and shorted-pin detection on RESET1–RESET3 outputs-providing comprehensive fault coverage for automotive ECU reliability.
MAX20419ATGG/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-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):
- 1.25V, 2.3V, 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3.6A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX20419ATGG/V+T FAQ
1.How can I place an order for MAX20419ATGG/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20419ATGG/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 MAX20419ATGG/V+T reliable?
The price and inventory of MAX20419ATGG/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 MAX20419ATGG/V+T is usually 5 days.
3.What payment methods are accepted for MAX20419ATGG/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20419ATGG/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20419ATGG/V+T?
MAX20419ATGG/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20419ATGG/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 MAX20419ATGG/V+T?
For technical support, including MAX20419ATGG/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20419ATGG/V+T requirements.
6.How does Aetrix verify that MAX20419ATGG/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20419ATGG/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 MAX20419ATGG/V+T meets industry standards.
7.What is the process for return or replacement of MAX20419ATGG/V+T?
All MAX20419ATGG/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20419ATGG/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 MAX20419ATGG/V+T part is unused and in its original packaging.
Return procedure for MAX20419ATGG/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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