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Analog Devices Inc./Maxim Integrated MAX20416ATGB/V+
- Part No.:
- MAX20416ATGB/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20416ATGB/V+.pdf
- Description:
- IC REG BUCK 1.5V/1.4V DL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,901
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Product details
Overview
The MAX20416ATGB/V+ 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, with fixed 1.5V (OUT1) and 1.4V (OUT2) outputs, ±1.5% voltage accuracy over load/line/temperature, and 2.2MHz fixed-frequency PWM operation-enabling all-ceramic designs in instrument cluster and infotainment systems.
For engineers reviewing the MAX20416ATGB/V+ datasheet, MAX20416ATGB/V+ pinout, MAX20416ATGB/V+ application, or MAX20416ATGB/V+ equivalent, key selection criteria include dual-channel AEC-Q100 qualification, independent EN/RESET control, spread-spectrum EMI reduction, and factory-configured soft-start time of 0.5ms for fast system boot timing.
Technical Context
The MAX20416ATGB/V+ integrates two current-mode synchronous buck controllers with independent enable (EN1/EN2), open-drain RESET outputs (RESET1/RESET2), and a programmable SYNC I/O that defaults to skip-mode input. Its 2.2MHz oscillator supports both forced-PWM (for EMI control) and skip-mode (for light-load efficiency), with pseudorandom spread-spectrum modulation ±3% around nominal frequency.
Each channel features cycle-by-cycle current limiting (3A threshold), thermal shutdown at +165°C with 15°C hysteresis, and ±3% UV/OV reset thresholds referenced to nominal output. The IC uses integrated low-RDS(ON) MOSFETs (RHS ≤75mΩ, RLS ≤50mΩ) and supports resistor-adjustable feedback via OUT1/OUT2 pins-though MAX20416ATGB/V+ is factory preset to fixed 1.5V/1.4V outputs.
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 | OUT1 = 1.5V, OUT2 = 1.4V - factory-preset for dual-core SoC or GPU/CPU core logic supply |
| Max Output Current | 3A per channel - enables single-chip power delivery for high-performance display processors |
| Voltage Accuracy | ±1.5% over load/line/temperature - ensures stable logic-level compliance across -40°C to +125°C |
| Switching Frequency | 2.2MHz (±10%) - allows use of compact 0.47µH inductors and all-ceramic output capacitors |
| UV/OV Thresholds | 93%/107% of nominal - provides robust reset signaling for safety-critical automotive subsystems |
| Soft-Start Time | 0.5ms - accelerates system boot while limiting inrush into downstream 1.4V/1.5V domains |
Pinout & Package
MAX20416ATGB/V+ is housed in a lead(Pb)-free, RoHS-compliant 4mm × 4mm 24-pin TQFN package with exposed thermal pad (EP), optimized for automotive PCB layouts requiring high power density and thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | RESET2, RESET1 | Open-drain fault indicators - assert low during UV/OV events; require external pull-up for logic-level signaling |
| 5, 6 | EN1, EN2 | Independent active-high enables - allow staggered startup or dynamic channel disable without affecting other rail |
| 7, 24 | OUT1, OUT2 | Feedback inputs - connect to resistor divider for adjustable versions; tied internally for fixed-output variants like MAX20416ATGB/V+ |
| 9, 22 | LX1, LX2 | Switch-node connections - drive external inductors; require tight layout to minimize EMI and switching losses |
| 10, 21 | PV1, PV2 | Power inputs per channel - each requires local 4.7µF ceramic decoupling to PGND1/PGND2 |
| 11 | SYNC | Factory-configured input - enables skip mode when low/open; forces PWM when pulled high or driven by external 1.8–2.6MHz clock |
| 13, 17 | PGND, GND | Power/analog ground - must be connected together with all PGND1/PGND2 pins for optimal noise immunity |
| 18 | PV | Analog supply - powers internal reference and logic; requires 1µF ceramic + 10Ω series resistor for filtering |
Key Features
| Feature | Design Value |
|---|---|
| Dual synchronous buck topology | Enables independent 1.5V/1.4V rails from single 3.3V–5.5V source - eliminates need for discrete dual converters or LDO post-regulators |
| AEC-Q100 Grade-1 qualification | Validated for -40°C to +125°C operation - meets automotive instrument cluster and infotainment thermal requirements without derating |
| Spread-spectrum frequency modulation | ±3% pseudorandom dithering of 2.2MHz clock - reduces peak radiated emissions by >10dB in critical 100MHz–1GHz bands |
| Individual RESET outputs with 7.4ms hold time | Provides deterministic fault reporting window - simplifies system-level power sequencing and watchdog integration |
| Integrated 75mΩ/50mΩ MOSFETs | Eliminates external high-side/low-side switches - reduces BOM count, layout area, and conduction losses at 3A load |
Applications
| Instrument Cluster Power | Infotainment Processor Core |
|---|---|
Use Scenario: Supplying dual voltage rails to MCU, graphics engine, and display interface in digital instrument clusters. IC Role / Device Role / Timing Role: Primary dual-output PMIC delivering 1.5V for microcontroller core and 1.4V for GPU logic under AEC-Q100 conditions. Use Value: Enables single-chip solution for ASIL-B compatible clusters - replaces discrete buck + LDO combinations while maintaining ±1.5% regulation across temperature. | Use Scenario: Powering multi-core application processor (e.g., NXP i.MX8, Renesas R-Car) in head-unit systems. IC Role / Device Role / Timing Role: Synchronous buck regulator providing tightly regulated 1.5V/1.4V core and cache supplies with fast transient response. Use Value: 2.2MHz switching minimizes output ripple during CPU burst loads - maintains <10mV p-p ripple at 3A step change per rail. |
| Automotive ADAS Camera Module | Telematics Control Unit (TCU) |
Use Scenario: Delivering clean, low-noise power to image signal processor (ISP) and MIPI CSI-2 serializer in rear-view camera modules. IC Role / Device Role / Timing Role: Dual-channel DC-DC converter supplying 1.5V ISP core and 1.4V serializer I/O with spread-spectrum EMI suppression. Use Value: Spread-spectrum modulation prevents switching noise from coupling into analog video paths - avoids visible banding in captured images. | Use Scenario: Powering LTE modem, GNSS receiver, and secure MCU in vehicle connectivity gateways. IC Role / Device Role / Timing Role: High-efficiency dual-buck regulator supporting simultaneous 1.5V modem core and 1.4V RF front-end operation. Use Value: Skip-mode operation extends battery runtime in always-on telematics - achieves >85% efficiency at 10mA load per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS650361RSLR | Single 3.3V input, dual 1.2V/1.8V outputs; 2.25MHz switching; no spread spectrum; only one RESET output | Targeted at industrial embedded systems - lacks AEC-Q100 qualification and automotive thermal range | Choose for cost-sensitive non-automotive designs where dual independent RESETs and EMI control are not required |
| MP2451DT-LF-Z | Single-output 3A buck; 2MHz fixed frequency; no dual-rail capability; no RESET or SYNC features | Requires two separate ICs to replicate MAX20416ATGB/V+ functionality - increases board area and component count | Use only when dual-rail integration is unnecessary and space constraints permit discrete implementation |
Compared with TPS650361RSLR and MP2451DT-LF-Z, the MAX20416ATGB/V+ uniquely combines AEC-Q100 qualification, dual independent RESETs, spread-spectrum EMI reduction, and factory-preset 1.5V/1.4V outputs - making it the only single-package solution qualified for automotive instrument cluster and infotainment power delivery.
Availability
MAX20416ATGB/V+ is available at Aetrix Electronics and suitable for automotive instrument cluster, infotainment head-units, and ADAS camera modules requiring stable component supply, AEC-Q100 compliance, and dual-rail power integration.
Supply support for MAX20416ATGB/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 precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX20416 product line delivers highly integrated, AEC-Q100-qualified dual-output DC-DC converters targeting automotive infotainment, instrument cluster, and ADAS subsystems requiring compact, low-EMI, thermally robust power solutions.
FAQ
What is the operating temperature range for the MAX20416ATGB/V+?
The MAX20416ATGB/V+ is rated for continuous operation from -40°C to +125°C ambient temperature and is AEC-Q100 Grade-1 qualified. This range covers under-hood and dashboard environments in automotive applications. Its thermal shutdown activates at +165°C junction temperature with 15°C hysteresis, ensuring reliable protection during sustained overload or poor heatsinking. The device's 4mm × 4mm TQFN package with exposed pad supports efficient heat transfer to the PCB ground plane.
Does the MAX20416ATGB/V+ support adjustable output voltages?
No, the MAX20416ATGB/V+ has factory-preset outputs of 1.5V on OUT1 and 1.4V on OUT2, as specified in the Ordering Information/Selector Guide. While the MAX20416 family includes adjustable variants (e.g., MAX20416ATGD/V+), the ATGB/V+ variant uses internal feedback networks and does not require external resistive dividers. The OUT1 and OUT2 pins are internally connected and not intended for external voltage programming in this specific part number.
How does the SYNC pin function on the MAX20416ATGB/V+?
On the MAX20416ATGB/V+, the SYNC pin is factory-configured as an input. When left floating or pulled low, it enables skip mode for improved light-load efficiency. When pulled high (≥1.5V), it forces fixed-frequency PWM operation for consistent EMI behavior. It also accepts external 1.8–2.6MHz clock signals for synchronization across multiple converters. Unlike output-configured variants, MAX20416ATGB/V+ does not drive SYNC as a clock output - its internal 2.2MHz oscillator remains dedicated to local regulation.
What protection features are integrated into the MAX20416ATGB/V+?
The MAX20416ATGB/V+ integrates cycle-by-cycle overcurrent limiting (3A threshold per channel), thermal shutdown at +165°C with automatic recovery, undervoltage/overvoltage monitoring with ±3% accuracy on each output, and open-drain RESET outputs asserting low during faults. It also includes soft-start ramp control (0.5ms factory setting), input UVLO (2.7V rising), and short-circuit tolerant LX nodes. These protections operate independently per channel, allowing one rail to remain functional during a fault on the other.
Can the MAX20416ATGB/V+ be used with all-ceramic output capacitors?
Yes, the MAX20416ATGB/V+ is explicitly designed for stability with low-ESR ceramic output capacitors. Its current-mode control architecture and internal compensation eliminate the need for electrolytic or tantalum capacitors. The datasheet recommends 47µF X7R ceramics per output, and typical application circuits confirm full stability using only ceramic components - enabling smaller footprint, longer lifetime, and better temperature performance than hybrid capacitor solutions.
MAX20416ATGB/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Strip
- 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+ FAQ
1.How can I place an order for MAX20416ATGB/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20416ATGB/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 MAX20416ATGB/V+ reliable?
The price and inventory of MAX20416ATGB/V+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX20416ATGB/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20416ATGB/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20416ATGB/V+?
MAX20416ATGB/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20416ATGB/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 MAX20416ATGB/V+?
For technical support, including MAX20416ATGB/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20416ATGB/V+ requirements.
6.How does Aetrix verify that MAX20416ATGB/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20416ATGB/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 MAX20416ATGB/V+ meets industry standards.
7.What is the process for return or replacement of MAX20416ATGB/V+?
All MAX20416ATGB/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20416ATGB/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 MAX20416ATGB/V+ part is unused and in its original packaging.
Return procedure for MAX20416ATGB/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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