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Analog Devices Inc./Maxim Integrated MAX20416ATGH/V+
- Part No.:
- MAX20416ATGH/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20416ATGH/V+.pdf
- Description:
- IC REG BUCK 1.1V/1.8V DL 24TQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX20416ATGH/V+ from Maxim Integrated is an AEC-Q100 qualified dual synchronous buck DC-DC converter for automotive power rails. It delivers up to 3A per channel from a 3.0V–5.5V input, with factory-programmed 1.1V and 1.8V outputs, ±1.5% voltage accuracy over load/line/temperature, and 2.2MHz fixed-frequency PWM operation. It powers instrument cluster and infotainment subsystems requiring tight regulation and low EMI.
For engineers reviewing the MAX20416ATGH/V+ datasheet, MAX20416ATGH/V+ pinout, MAX20416ATGH/V+ application, or MAX20416ATGH/V+ equivalent, key selection criteria include dual-channel 3A capability, automotive-grade thermal range (−40°C to +125°C), spread-spectrum EMI reduction, independent EN/RESET control, and TQFN-24 package compatibility with all-ceramic external components.
Technical Context
The MAX20416ATGH/V+ integrates two independent current-mode synchronous buck controllers with programmable soft-start (2.5ms), cycle-by-cycle overcurrent protection, and thermal shutdown at 165°C with 15°C hysteresis. Each channel features dedicated high-side (RDS(ON) ≤75mΩ) and low-side (RDS(ON) ≤50mΩ) MOSFETs, 100% duty-cycle capability, and minimum on-time of 44ns.
Its SYNC pin operates as a factory-configured input enabling forced-PWM (logic-high) or skip mode (open/low), supporting synchronization to external clocks between 1.8MHz–2.6MHz. RESET1/RESET2 provide open-drain fault signals with 7.4ms active hold time and ±3% UV/OV threshold accuracy referenced to nominal output voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - supports direct connection to automotive 3.3V or 5V rails without pre-regulation. |
| Output Voltages | 1.1V (OUT1) and 1.8V (OUT2) - factory preset for core logic and I/O rail sequencing in ADAS/instrument clusters. |
| Max Output Current | 3A per channel - enables single-chip power delivery for dual-core SoCs or multi-rail microcontrollers. |
| Switching Frequency | 2.2MHz (±10%) - allows use of compact 0.47µH inductors and all-ceramic capacitors, minimizing board area. |
| Voltage Accuracy | ±1.5% over load, line, and temperature - ensures stable operation of sensitive analog/digital circuitry across automotive conditions. |
| Operating Temperature | −40°C to +125°C - meets under-hood and dashboard environmental requirements per AEC-Q100 Grade 1. |
| EMI Reduction | Programmable spread-spectrum modulation (±3%) - lowers peak radiated emissions without external filtering. |
| Protection Features | Overcurrent limit (3.6A typ), overtemperature shutdown (165°C), undervoltage/overvoltage monitoring (±3% threshold accuracy) - enables robust system-level fault handling. |
Pinout & Package
MAX20416ATGH/V+ is housed in a lead(Pb)-free, RoHS-compliant 4mm × 4mm 24-pin TQFN package with exposed thermal pad (package code T2444+4C). The thermally enhanced layout supports junction-to-ambient θJA = 36°C/W on a four-layer board, enabling high-power density in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | RESET2, RESET1 | Open-drain fault outputs - assert low when respective output deviates beyond ±3% UV/OV window; require external pull-up for logic-level signaling. |
| 5, 6 | EN1, EN2 | Independent active-high enable inputs - each controls startup sequence and soft-start ramp (2.5ms) for its channel without inter-channel timing constraints. |
| 7, 24 | OUT1, OUT2 | Voltage-sense/feedback pins - connect to resistor divider for adjustable versions; unused in factory-fixed variants like MAX20416ATGH/V+. |
| 9, 22 | LX1, LX2 | Switch-node terminals - drive external 0.47µH inductors; require low-inductance layout to minimize switching noise and EMI. |
| 10, 21 | PV1, PV2 | Power input supplies for each channel - each requires local 4.7µF ceramic decoupling to PGND1/PGND2 to suppress high-frequency ripple. |
| 11 | SYNC | Factory-configured input - logic-high enables forced-PWM; open/low enables skip mode; accepts 1.8–2.6MHz external clock for synchronization. |
| 13, 17 | PGND, GND | Power and analog ground - must be connected together with low-impedance copper pour; exposed pad must also be soldered to ground plane for thermal performance. |
| 18 | PV | Analog supply input - powers internal reference and logic; requires 1µF ceramic capacitor with 10Ω series resistor to filter noise from main input rail. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 3A synchronous buck channels | Eliminates need for two discrete converters, reducing BOM count, PCB area, and design complexity in dual-rail systems. |
| 2.2MHz fixed-frequency PWM + skip mode | Enables consistent EMI profile during heavy loads while improving light-load efficiency (>85% at 1mA) without compromising transient response. |
| Factory-set 1.1V/1.8V outputs | Removes external feedback resistors and compensation components, simplifying layout and ensuring guaranteed accuracy without calibration. |
| AEC-Q100 Grade 1 qualification | Validates reliability for automotive applications including instrument clusters and infotainment head units operating at full temperature range. |
| Integrated spread-spectrum modulation | Reduces peak radiated emissions by spreading energy across ±3% bandwidth, easing compliance with CISPR 25 Class 5 limits. |
| Independent EN/RESET per channel | Supports staggered power-up sequencing and isolated fault reporting-critical for ASIL-B functional safety partitioning in domain controllers. |
Applications
| Instrument Cluster Power | Infotainment SoC Core Rails |
|---|---|
Use Scenario: Supplies 1.1V core and 1.8V I/O rails to a dual-core automotive MCU in digital instrument clusters. IC Role / Device Role / Timing Role: Dual-output PMIC providing tightly regulated, sequenced, and monitored power with independent reset signaling. Use Value: Enables single-chip solution for mixed-voltage SoC powering, eliminating discrete regulators and reducing thermal hotspots in confined dash-space layouts. |
Use Scenario: Powers ARM Cortex-A72 CPU cores and GPU I/O interfaces in head-unit infotainment systems. IC Role / Device Role / Timing Role: High-efficiency, low-noise DC-DC converter delivering stable 1.1V/1.8V with fast load-transient response (<10µs recovery). Use Value: Maintains SoC performance under dynamic video/audio workloads while meeting strict automotive EMI limits via 2.2MHz switching and spread spectrum. |
| ADAS Camera Module | Automotive Telematics Unit |
Use Scenario: Provides clean, low-noise 1.1V and 1.8V supplies to image signal processors and MIPI CSI-2 transceivers in surround-view cameras. IC Role / Device Role / Timing Role: Dual-channel buck regulator with ultra-low output ripple and precise UV/OV monitoring for vision-system reliability. Use Value: Prevents image artifacts caused by power rail noise, and enables fail-safe shutdown via RESET outputs during voltage faults detected in real time. |
Use Scenario: Powers LTE modem baseband processor and GNSS receiver in vehicle telematics control units. IC Role / Device Role / Timing Role: Automotive-grade dual buck converter supporting cold-crank (3.0V min) and load-dump (5.5V max) conditions with thermal resilience. Use Value: Ensures continuous connectivity during extreme battery transients, backed by overtemperature protection and −40°C to +125°C operational guarantee. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4436-AEC1 | Single 3A buck with external VREF; no dual-output integration - requires two ICs for same functionality. | Lacks integrated dual-channel architecture and independent RESET outputs; less suitable for space-constrained instrument clusters. | Choose when needing higher VIN (up to 36V) or discrete channel control, but expect increased layout area and component count. |
| TPS650362-Q1 | Triple-output PMIC (2× buck + LDO); 2A max per buck; fixed 1.2V/1.8V outputs; no spread-spectrum EMI control. | Includes integrated LDO but lower current capability and no programmable soft-start or skip mode optimization. | Select when requiring third rail (e.g., 3.3V LDO) and lower cost is prioritized over EMI performance and 3A per channel capability. |
Compared with MPQ4436-AEC1 and TPS650362-Q1, the MAX20416ATGH/V+ uniquely delivers dual 3A synchronous buck regulation in a single 4mm × 4mm package with automotive-grade EMI suppression, independent fault signaling, and guaranteed ±1.5% accuracy - making it optimal for next-generation digital cockpit power architectures where size, precision, and noise immunity are critical.
Availability
MAX20416ATGH/V+ is available at Aetrix Electronics and suitable for instrument cluster, infotainment, and ADAS camera module designs requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for MAX20416ATGH/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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets, with emphasis on power management, interface, and sensor solutions.
The MAX20416 product line delivers highly integrated, AEC-Q100 qualified dual-output DC-DC converters optimized for digital cockpit systems demanding compact size, low EMI, and robust fault management in harsh automotive environments.
FAQ
What is the output voltage configuration of MAX20416ATGH/V+?
The MAX20416ATGH/V+ has factory-preset output voltages: 1.1V on OUT1 and 1.8V on OUT2. These values are laser-trimmed during production and do not require external feedback resistors. The device does not support resistor-adjustable outputs - only fixed-voltage variants like MAX20416ATGH/V+ or adjustable versions such as MAX20416ATGD/V+ offer that capability.
Does MAX20416ATGH/V+ support synchronization to an external clock?
Yes, MAX20416ATGH/V+ supports external clock synchronization via its SYNC pin, which is factory-configured as an input. When driven with a 1.8MHz–2.6MHz square wave, the internal oscillators lock to the external frequency, enabling deterministic EMI reduction and multi-rail phase alignment. In skip mode, SYNC must be left open or pulled low.
What thermal performance can be expected from MAX20416ATGH/V+ in a typical automotive PCB layout?
On a standard four-layer automotive PCB, MAX20416ATGH/V+ achieves a junction-to-ambient thermal resistance (θJA) of 36°C/W. With 3A load per channel at 5.5V input and 1.1V/1.8V outputs, typical power dissipation is ~1.2W, resulting in ~43°C junction rise above ambient - well within the +125°C maximum rating. Proper soldering of the exposed pad to a solid ground plane is essential to realize this performance.
How does the RESET function operate on MAX20416ATGH/V+?
MAX20416ATGH/V+ provides two open-drain RESET outputs: RESET1 monitors OUT1 and RESET2 monitors OUT2. Each asserts low when its respective output falls below 93% or rises above 107% of nominal voltage. After fault clearance, the output remains asserted for a fixed 7.4ms hold time before releasing. External pull-up resistors are required to generate logic-high signals for microcontroller monitoring.
Is MAX20416ATGH/V+ compatible with all-ceramic output capacitors?
Yes, MAX20416ATGH/V+ is specifically designed for stability with low-ESR ceramic capacitors. The datasheet recommends 47µF X7R ceramics per output, and the control loop is compensated to maintain >45° phase margin with these components. Tantalum or aluminum electrolytic capacitors are not recommended due to ESR-related instability risks.
MAX20416ATGH/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-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.1V, 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A, 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX20416ATGH/V+ FAQ
1.How can I place an order for MAX20416ATGH/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20416ATGH/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 MAX20416ATGH/V+ reliable?
The price and inventory of MAX20416ATGH/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20416ATGH/V+ is usually 5 days.
3.What payment methods are accepted for MAX20416ATGH/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20416ATGH/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20416ATGH/V+?
MAX20416ATGH/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20416ATGH/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 MAX20416ATGH/V+?
For technical support, including MAX20416ATGH/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20416ATGH/V+ requirements.
6.How does Aetrix verify that MAX20416ATGH/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20416ATGH/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 MAX20416ATGH/V+ meets industry standards.
7.What is the process for return or replacement of MAX20416ATGH/V+?
All MAX20416ATGH/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20416ATGH/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 MAX20416ATGH/V+ part is unused and in its original packaging.
Return procedure for MAX20416ATGH/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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