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Analog Devices Inc./Maxim Integrated MAX20419ATGL/V+
- Part No.:
- MAX20419ATGL/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20419ATGL/V+.pdf
- Description:
- IC REG BUCK BST 0.9V TRPL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,906
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Product details
Overview
MAX20419ATGL/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 accuracy on buck outputs, ±1.9% on boost, and ASIL-C compliance for ADAS power rails.
For engineers reviewing the MAX20419ATGL/V+ datasheet, MAX20419ATGL/V+ pinout, MAX20419ATGL/V+ application, or MAX20419ATGL/V+ equivalent, key selection criteria 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 shorted-pin detection on RESET outputs.
Technical Context
The MAX20419ATGL/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 all-ceramic external component design and reduces EMI via programmable spread-spectrum modulation.
Redundant internal voltage references, open-pin fail-safe behavior, and independent OV/UV monitoring (±1.3%) on OUT1–OUT3 and PV support functional safety requirements in ASIL-C systems. Each regulator features dedicated enable (EN1–EN3), power-good (PGNDx), and reset (RESET1–RESET3) signaling with short-circuit detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | 1x boost (5V fixed), 2x buck (0.8V–3.8V, 25mV step programmable) |
| Max Output Current | 750mA (OUT1), 3.6A each (OUT2, OUT3) |
| Output Voltage Accuracy | ±1.9% (OUT1), ±1.4% (OUT2/OUT3) over line/load/temp |
| Switching Frequency | 2.2MHz fixed, with spread-spectrum modulation to reduce radiated emissions |
| Input Voltage Range | 3.0V to 5.5V - supports direct connection to automotive 3.3V/5V rails |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1 |
| Safety Certification | ASIL-C compliant with redundant reference, open-pin fail-safe, and shorted-pin detection |
Pinout & Package
MAX20419ATGL/V+ is housed in a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad (pin 24 = GND). 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 | Independent enable inputs | Enable/disable each regulator individually; logic-high active, compatible with 1.8V/3.3V GPIO |
| RESET1–RESET3 | Dedicated reset outputs | Open-drain, active-low signals indicating regulation fault or UV/OV condition on respective output |
| WDI, WDS | Watchdog interface | Windowed watchdog input and status output for system-level safety monitoring |
| LX1–LX3 | Switch node terminals | Connect to external inductors; require low-inductance routing to minimize switching noise |
| PGND1–PGND3 | Power ground returns | Separate ground paths per regulator to prevent cross-regulator noise coupling |
| PV, PV_OV | Main supply input & OV detection | PV accepts 3.0V–5.5V input; PV_OV provides overvoltage alert at ~6.2V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Integrated low-RDS(ON) FETs | Eliminates need for external MOSFETs; reduces BOM count and PCB area vs discrete solutions |
| Programmable spread-spectrum modulation | Reduces peak radiated EMI by >10dB without requiring external filtering components |
| Factory-preset 5V boost output | Removes need for external feedback resistors on OUT1; simplifies layout and improves accuracy |
| Individual power-good and reset signaling | Enables sequenced startup and independent fault isolation per rail in multi-rail SoC systems |
| Shorted-pin detection on RESET outputs | Identifies solder bridge or trace short on critical safety outputs - prevents silent failure in ASIL-C designs |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Core Rail |
|---|---|
Use Scenario: Dual-camera front-facing ADAS module requiring isolated 5V imaging sensor rail and dual 1.1V/1.8V SoC core/memory rails. IC Role / Device Role / Timing Role: Primary power management IC delivering three regulated rails with independent sequencing and fault reporting. Use Value: Enables single-chip solution replacing three discrete converters; ASIL-C diagnostics ensure camera uptime during critical maneuvers. | Use Scenario: Next-generation infotainment head unit with quad-core application processor and LPDDR4 memory. IC Role / Device Role / Timing Role: Central PMIC supplying core VDD, GPU, and memory I/O rails with tight voltage tolerance and fast transient response. Use Value: ±1.4% buck accuracy and 2.2MHz operation maintain stable SoC operation under dynamic load changes during video decoding. |
| Radar ECU Power Subsystem | Domain Controller Safety Monitor Rail |
Use Scenario: 77GHz radar ECU needing clean 5V analog supply and 1.2V digital core rail with thermal derating capability. IC Role / Device Role / Timing Role: High-efficiency dual-buck + boost regulator with overtemperature protection and soft-start control. Use Value: Integrated thermal shutdown and current-mode control prevent rail collapse during extended high-power radar transmit bursts. | Use Scenario: Zonal domain controller requiring independent, monitored 3.3V safety monitor rail for MCU watchdog and CAN transceiver bias. IC Role / Device Role / Timing Role: Dedicated low-noise, ASIL-C-compliant auxiliary rail generator with windowed watchdog interface. Use Value: WDI/WDS pins enable hardware-level safety chain integration; ±1.3% OV/UV monitoring ensures reliable safety subsystem supervision. |
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 |
|---|---|---|---|
| TPS6594121RWER | 4-output PMIC (3 buck + 1 LDO); no boost; 1.8V–5.5V input; lower max buck current (3A) | Lacks 5V boost rail; requires external boost for sensor bias; optimized for Jacinto processors | Select when SoC does not require 5V imaging rail and LDO-based I/O supply suffices |
| MPQ4333GQ-AEC1 | 2-output buck-only (3.6A each); no boost; no ASIL-C features; no watchdog or redundancy | No safety diagnostics; unsuitable for ASIL-B/C domains; limited to non-safety-critical rails | Select only for cost-sensitive, non-safety ADAS sub-systems where 5V boost is provided externally |
Compared with TPS6594121RWER and MPQ4333GQ-AEC1, the MAX20419ATGL/V+ uniquely integrates a factory-configured 5V boost stage with ASIL-C diagnostics - eliminating external boost circuitry while enabling single-chip compliance for camera and radar power domains.
Availability
MAX20419ATGL/V+ is available at Aetrix Electronics and suitable for Advanced Driver-Assistance Systems (ADAS), automotive infotainment systems, and domain controller power management requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for MAX20419ATGL/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 precision and reliability.
The MAX20419ATGL/V+ belongs to Analog Devices' automotive-qualified power management portfolio, engineered specifically for functional-safety-critical ADAS and zonal architecture power delivery with integrated diagnostics and redundancy.
FAQ
What is the factory-preset output voltage of the boost converter in MAX20419ATGL/V+?
The MAX20419ATGL/V+ features a factory-preset boost output of exactly 5.0V on OUT1, eliminating external feedback resistors and ensuring ±1.9% accuracy across temperature, line, and load. This fixed 5V rail is optimized for powering image sensors, USB PHYs, and other 5V peripherals in automotive ADAS modules without additional configuration.
Does MAX20419ATGL/V+ support independent enable and reset control for each output?
Yes, MAX20419ATGL/V+ provides dedicated EN1/EN2/EN3 enable inputs and open-drain RESET1/RESET2/RESET3 outputs for each regulator. This allows precise power sequencing, fault isolation, and system-level safety monitoring - essential for multi-rail SoCs in ASIL-C applications where individual rail health must be independently verified.
What safety certifications and diagnostic features does MAX20419ATGL/V+ include?
MAX20419ATGL/V+ is ASIL-C compliant per ISO 26262 and includes redundant internal voltage references, open-pin fail-safe behavior, shorted-pin detection on all RESET outputs, ±1.3% OV/UV monitoring on all outputs and PV, and a programmable windowed watchdog (WDI/WDS). These features collectively support safety mechanisms required in camera, radar, and domain controller power subsystems.
Can MAX20419ATGL/V+ operate with all-ceramic output capacitors?
Yes, MAX20419ATGL/V+ operates at a fixed 2.2MHz switching frequency, enabling stable regulation with all-ceramic output capacitors. This eliminates bulk electrolytic or tantalum capacitors, reduces board area, improves reliability, and simplifies EMI filtering - especially beneficial in compact ADAS camera modules where space and thermal performance are constrained.
What is the thermal package specification and maximum ambient temperature rating for MAX20419ATGL/V+?
MAX20419ATGL/V+ uses a 24-pin 4mm × 4mm TQFN package with exposed thermal pad (pin 24 = GND) and is rated for −40°C to +125°C ambient operation. It is AEC-Q100 Grade 1 qualified, with integrated overtemperature protection that disables regulators upon junction temperature exceeding safe limits - ensuring robustness in under-hood and dashboard-mounted automotive environments.
MAX20419ATGL/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):
- 0.9V, 1.25V, 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 750mA, 2A, 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)
MAX20419ATGL/V+ FAQ
1.How can I place an order for MAX20419ATGL/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20419ATGL/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 MAX20419ATGL/V+ reliable?
The price and inventory of MAX20419ATGL/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20419ATGL/V+ is usually 5 days.
3.What payment methods are accepted for MAX20419ATGL/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20419ATGL/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20419ATGL/V+?
MAX20419ATGL/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20419ATGL/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 MAX20419ATGL/V+?
For technical support, including MAX20419ATGL/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20419ATGL/V+ requirements.
6.How does Aetrix verify that MAX20419ATGL/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20419ATGL/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 MAX20419ATGL/V+ meets industry standards.
7.What is the process for return or replacement of MAX20419ATGL/V+?
All MAX20419ATGL/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20419ATGL/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 MAX20419ATGL/V+ part is unused and in its original packaging.
Return procedure for MAX20419ATGL/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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