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Analog Devices Inc./Maxim Integrated MAX20416ATGB/V+T
- Part No.:
- MAX20416ATGB/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20416ATGB/V+T.pdf
- Description:
- IC REG BUCK 1.5V/1.4V DL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,186
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Product details
Overview
The MAX20416ATGB/V+T from Maxim Integrated is a dual-output, synchronous step-down DC-DC converter designed for automotive power rails. It delivers up to 3A per channel from a 3.0V–5.5V input, supports factory-preset 1.5V/1.4V outputs with ±1.5% accuracy, operates at 2.2MHz fixed PWM or skip mode, and integrates low RDS(ON) MOSFETs in a 4mm × 4mm TQFN-24 package-enabling compact, high-efficiency power delivery in instrument clusters and infotainment systems.
For engineers reviewing the MAX20416ATGB/V+T datasheet, MAX20416ATGB/V+T pinout, MAX20416ATGB/V+T application, or MAX20416ATGB/V+T equivalent, key selection criteria include dual-channel 3A capability, AEC-Q100 qualification, 2.2MHz switching with spread-spectrum EMI reduction, independent EN/RESET control, and thermal shutdown at 165°C with 15°C hysteresis.
Technical Context
This IC implements two independent current-mode synchronous buck regulators sharing a common 2.2MHz oscillator with programmable spread-spectrum modulation (±3%). Each channel features cycle-by-cycle overcurrent protection, soft-start (1.25ms or 2.5ms factory-configured), and open-drain RESET outputs with 7.4ms hold time and ±3% UV/OV threshold accuracy.
Operation supports three modes: forced-PWM (via SYNC high or external clock 1.8–2.6MHz), skip mode (SYNC low/open), or internal oscillator default. The device uses integrated high-side (35–150mΩ) and low-side (20–100mΩ) MOSFETs, enabling all-ceramic capacitor designs and eliminating external gate drivers or discrete switches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - supports direct connection to automotive 3.3V/5V rails without pre-regulation |
| Output Voltage (OUT1/OUT2) | 1.5V / 1.4V factory preset - eliminates external feedback resistors for these configurations |
| Max Output Current | 3A per channel - enables single-chip power for dual-core SoCs or multi-rail microcontrollers |
| Switching Frequency | 2.2MHz ±10% - allows use of small 0.47µH inductors and all-ceramic output capacitors |
| Output Accuracy | ±1.5% over load/line/temp - ensures stable core voltage under dynamic CPU/GPU load transitions |
| UVLO Threshold | 2.7V (rising), 2.6V (falling) - prevents erratic startup/shutdown during battery brownouts |
| Thermal Shutdown | 165°C with 15°C hysteresis - provides robust protection in sealed automotive enclosures |
Pinout & Package
Package: 24-pin TQFN (4mm × 4mm, exposed pad), RoHS-compliant, AEC-Q100 qualified, operating from –40°C to +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | RESET2, RESET1 | Open-drain fault indicators - assert low on UV/OV violation; require external pull-up for system reset signaling |
| 5, 6 | EN1, EN2 | Independent active-high enables - allow staggered power-up sequencing for multi-rail systems |
| 7, 24 | OUT1, OUT2 | Feedback inputs - connect to resistor divider for adjustable outputs; unused in factory-preset versions |
| 9, 22 | LX1, LX2 | Switch-node connections - drive external inductors; require tight layout to minimize EMI and ringing |
| 10, 21 | PV1, PV2 | Power inputs per channel - each requires local 4.7µF ceramic decoupling to PGND1/PGND2 |
| 11 | SYNC | Configurable I/O - factory-set as input to select PWM/skip mode or synchronize to external clock |
| 13, 17, 19, 20, 3, 4, 12, 14–16 | GND/PGND | Ground terminals - must be connected together with low-inductance traces to ensure stable regulation and thermal performance |
| 18 | PV | Analog supply - powers internal reference and logic; requires 1µF ceramic + 10Ω series resistor for noise filtering |
Key Features
| Feature | Design Value |
|---|---|
| Dual 3A synchronous buck converters | Eliminates need for two separate PMICs - reduces BOM count and PCB area in space-constrained automotive modules |
| 2.2MHz fixed-frequency PWM + skip mode | Enables consistent EMI filtering design while achieving >90% efficiency at light loads (e.g., standby infotainment) |
| Programmable spread-spectrum modulation (±3%) | Reduces peak radiated emissions by spreading energy across 66kHz bandwidth - aids CISPR 25 Class 5 compliance |
| Individual EN and RESET pins per channel | Supports independent power sequencing and fault isolation - critical for ASIL-B functional safety decomposition |
| AEC-Q100 Grade-1 qualification (–40°C to +125°C) | Validated for under-hood and dashboard applications without derating - meets automotive reliability requirements |
Applications
| Instrument Cluster | Infotainment Head Unit |
|---|---|
Use Scenario: Powering TFT LCD display controller, graphics processor, and CAN interface MCU in digital dashboards. IC Role / Device Role / Timing Role: Dual-rail PMIC delivering 1.5V for GPU core and 1.4V for DDR memory interface with synchronized soft-start. Use Value: Eliminates discrete LDOs and external FETs - reduces solution size by 40% vs. legacy buck+LDO architectures while maintaining <±2% rail tolerance during rapid load transients. | Use Scenario: Supplying application processor, audio codec, and touch controller in center-stack infotainment systems. IC Role / Device Role / Timing Role: Primary DC-DC source with independent enable control enabling low-power audio playback mode (OUT2 active, OUT1 disabled). Use Value: Skip-mode operation achieves 85% efficiency at 10mA load - extends battery runtime during vehicle key-off listening mode without compromising 2.2MHz EMI profile. |
| ADAS Camera Module | Automotive Telematics Control Unit |
Use Scenario: Providing clean, low-noise 1.2V and 1.8V rails for image sensor ISP and MIPI CSI-2 serializer. IC Role / Device Role / Timing Role: High-PSRR, low-ripple dual buck regulator with spread-spectrum clocking to avoid beat frequencies with sensor pixel clocks. Use Value: 2.2MHz switching places fundamental noise above 10MHz - avoids interference with 1–6MHz MIPI D-PHY clock bands and simplifies board-level filtering. | Use Scenario: Powering LTE modem, GNSS receiver, and secure MCU in telematics gateway units. IC Role / Device Role / Timing Role: Automotive-grade dual-output PMIC with independent RESET outputs feeding watchdog timers for each subsystem. Use Value: ±3% UV/OV detection on both rails triggers hardware resets within 10µs - satisfies ISO 26262 ASIL-B diagnostic coverage requirements for communication subsystems. |
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 |
|---|---|---|---|
| TPS650362RGER | Single 3A + dual 1.5A outputs; 2.25MHz fixed frequency; no spread-spectrum; only one RESET output | Lacks independent RESET per rail and EMI-reduction features - less suitable for CISPR 25 Class 5 systems | Choose when cost sensitivity outweighs EMI and functional safety requirements |
| MPQ4482GR-AEC1 | Dual 3A outputs; 2.2MHz; no spread-spectrum; AEC-Q100; single EN pin; no individual RESET outputs | Shared enable and no per-rail fault signaling limit sequencing flexibility and diagnostics capability | Prefer when simplified control interface is prioritized over independent rail monitoring |
Compared with TPS650362RGER and MPQ4482GR-AEC1, the MAX20416ATGB/V+T uniquely provides per-channel RESET outputs with 7.4ms hold time, ±3% UV/OV accuracy, and factory-programmable spread-spectrum modulation - making it the only option among the three qualified for demanding automotive infotainment EMI and functional safety requirements.
Availability
MAX20416ATGB/V+T is available at Aetrix Electronics and suitable for instrument cluster, infotainment head unit, and ADAS camera module designs requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for MAX20416ATGB/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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications applications.
The MAX20416 product line delivers highly integrated, AEC-Q100-qualified dual-output DC-DC converters targeting next-generation automotive infotainment and digital cockpit systems requiring compact, low-EMI, and functionally safe power solutions.
FAQ
What is the factory-preset output voltage configuration for MAX20416ATGB/V+T?
The MAX20416ATGB/V+T has factory-preset outputs of 1.5V on OUT1 and 1.4V on OUT2, with ±1.5% accuracy over temperature, line, and load. These voltages are internally trimmed and do not require external feedback resistors. The ordering code "ATGB" explicitly denotes this 1.5V/1.4V variant per the Maxim Integrated Selector Guide.
Does MAX20416ATGB/V+T support synchronization to an external clock?
Yes, the MAX20416ATGB/V+T 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-device phase alignment. This feature is confirmed in the Synchronization section of the MAX20416ATGB/V+T datasheet.
What thermal protection features does MAX20416ATGB/V+T include?
The MAX20416ATGB/V+T includes thermal shutdown at 165°C (typical) with 15°C hysteresis, as specified in the Absolute Maximum Ratings and Detailed Description sections. When junction temperature exceeds this threshold, the bias regulator and step-down controllers disable until cooling occurs. This protection is fully operational across the –40°C to +125°C automotive temperature range and is AEC-Q100 validated.
Can MAX20416ATGB/V+T operate with only one output enabled?
Yes, MAX20416ATGB/V+T supports independent channel control: EN1 and EN2 are fully isolated inputs, allowing OUT1 to be active while OUT2 remains in shutdown (or vice versa). Each channel maintains its own soft-start timing and RESET assertion behavior. This capability is documented in the Enable Inputs section and verified in the Pin Description table of the MAX20416ATGB/V+T datasheet.
What is the recommended input capacitance for MAX20416ATGB/V+T?
The MAX20416ATGB/V+T requires 4.7µF X7R ceramic capacitors on PV1 and PV2 pins, and a 1.0µF X7R ceramic capacitor on the PV pin with a 10Ω series resistor. This configuration is specified in the Applications Information section to minimize input ripple, reduce peak currents, and ensure stability - directly supporting the 2.2MHz switching frequency and automotive transient requirements.
MAX20416ATGB/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-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):
- 1.5V, 1.4V
- Voltage - Output (Max):
- -
- Current - Output:
- 3A, 3A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX20416ATGB/V+T FAQ
1.How can I place an order for MAX20416ATGB/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20416ATGB/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 MAX20416ATGB/V+T reliable?
The price and inventory of MAX20416ATGB/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 MAX20416ATGB/V+T is usually 5 days.
3.What payment methods are accepted for MAX20416ATGB/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20416ATGB/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20416ATGB/V+T?
MAX20416ATGB/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20416ATGB/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 MAX20416ATGB/V+T?
For technical support, including MAX20416ATGB/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20416ATGB/V+T requirements.
6.How does Aetrix verify that MAX20416ATGB/V+T is sourced from the original manufacturer or authorized distributors?
All MAX20416ATGB/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 MAX20416ATGB/V+T meets industry standards.
7.What is the process for return or replacement of MAX20416ATGB/V+T?
All MAX20416ATGB/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20416ATGB/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 MAX20416ATGB/V+T part is unused and in its original packaging.
Return procedure for MAX20416ATGB/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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