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Analog Devices Inc./Maxim Integrated MAX20057ATIG/VY+T
- Part No.:
- MAX20057ATIG/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
MAX20057ATIG/VY+T.pdf
- Description:
- 36V SYNC BOOST CONTROLLER WITH D
- Quantity:
- Payment:
- Shipping:
Inventory:3,833
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Product details
Overview
MAX20057ATIG/VY+T from Analog Devices is an automotive-grade triple-output power management IC integrating two synchronous buck converters (5V/3.5A and 3.3V/2A) and a 36V asynchronous boost controller, operating from 3.5V–36V input with cold-crank support down to 2V battery voltage, designed for instrument clusters and start-stop systems.
For engineers reviewing the MAX20057ATIG/VY+T datasheet, MAX20057ATIG/VY+T pinout, MAX20057ATIG/VY+T application, or MAX20057ATIG/VY+T equivalent, key selection considerations include its 2.1MHz/400kHz selectable switching frequency, 180° out-of-phase buck operation, spread-spectrum EMI reduction, thermal shutdown at 170°C, and -40°C to +125°C automotive qualification.
Technical Context
The MAX20057ATIG/VY+T implements valley-current-mode control for both buck converters, enabling stable regulation across wide input ranges including automotive cold-crank (2V–36V), with 180° phase shift between Buck1 and Buck2 to minimize input ripple. Its boost controller operates in current-mode with external N-MOSFET drive via DL pin and supports pre-boost during low-input conditions.
FSYNC enables three operational modes: forced PWM (fixed-frequency), skip mode (ultra-low quiescent current), or PLL-synchronized external clock locking; spread spectrum is factory-enabled with ±6% frequency modulation centered at 2.1MHz or scaled for 400kHz operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V continuous; supports cold-crank operation down to 2.05V input via boost pre-regulation |
| Buck1 Output | Fixed 5V ±1% or adjustable 1V–14V; 3.5A continuous output with 95% max duty cycle |
| Buck2 Output | Fixed 3.3V ±1% or adjustable 1V–14V; 2A continuous output with 20ns min on-time |
| Boost Output | Fixed 10V ±0.25V or adjustable; 36V capable with 50mV current-limit threshold for low-loss sensing |
| Switching Frequency | Factory-set 2.1MHz or 400kHz; FSYNC programmable for PLL sync, skip mode, or forced PWM |
| Quiescent Current | 10μA (5V buck active), 8μA (3.3V buck active), 30μA (all regulators active) - critical for always-on automotive modules |
| Thermal Protection | Thermal shutdown at 170°C with 20°C hysteresis; junction-to-ambient θJA = 27°C/W on 4-layer board |
Pinout & Package
Package: 5mm × 5mm, 28-pin thermally enhanced TQFN-EP (exposed pad grounded); RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Independent enable inputs | High-voltage tolerant digital enables for Buck1, Buck2, and Boost - allow precise power sequencing in multi-rail automotive systems |
| OUT1 / OUT2 | Output sense terminals | Direct connection to buck outputs for remote sensing; used with internal preset feedback dividers when FBx tied to BIAS |
| FB1 / FB2 / FB3 | Feedback inputs | Regulated to 1.0V (±1.5%) - set output voltage via resistor divider; FB3 configures boost fixed/adjustable mode |
| LX1 / LX2 | Power switch node connections | Connect to buck inductors; high dV/dt nodes requiring tight layout and ground plane isolation |
| PGOOD1 / PGOOD2 | Open-drain power-good indicators | Assert low when output drops below 93.5% of nominal; high-impedance above 95% - used for rail enable sequencing and fault signaling |
| DL | Boost low-side gate driver output | Drives external N-MOSFET gate with ±1.67A peak current; requires careful PCB routing due to high di/dt |
| FSYNC | External clock synchronization input | Accepts 250kHz–2.6MHz clock; determines buck phase relationship (50% duty cycle → 180° shift) and selects operating mode |
| BIAS / EXTVCC | Internal LDO output / switchover input | 5V BIAS powers internal circuitry; EXTVCC bypasses BIAS when supplied 3.25V–5.5V - reduces dissipation and improves light-load efficiency |
Key Features
| Feature | Design Value |
|---|---|
| 180° out-of-phase buck operation | Reduces RMS input current ripple by up to 30% vs. in-phase configuration - lowers bulk capacitor stress and EMI filter size |
| 20ns minimum on-time (buck) | Enables 3.3V output regulation at 2.1MHz with 3.5V input - essential for compact, AM-band-clean designs in space-constrained ECUs |
| Skip mode with ultra-low IQ | 8–10μA supply current per active buck rail - extends battery life in always-on vehicle modules during extended parking |
| Cold-crank ready boost architecture | Maintains buck regulation during 2V battery transients by pre-boosting SUPSW rails - eliminates system brownouts in start-stop cycles |
| Spread-spectrum modulation (±6%) | Reduces peak EMI amplitude by >10dB in 150kHz–108MHz band - meets CISPR 25 Class 5 without added shielding or ferrites |
| Integrated thermal protection | 170°C shutdown with 20°C hysteresis and 3°C/W junction-to-case resistance - ensures reliability under sustained high-power load in engine bay |
Applications
| Instrument Cluster Power Supply | Start-Stop System Control Unit |
|---|---|
Use Scenario: Powers LCD display, microcontroller, CAN transceiver, and backlight drivers in digital instrument panels exposed to wide temperature and voltage swings. IC Role / Device Role / Timing Role: Primary PMIC delivering regulated 5V and 3.3V rails while maintaining operation during 2V cold-crank events via integrated boost. Use Value: Eliminates need for discrete pre-boost stage; 2.1MHz operation allows <10μH inductors and 10μF ceramic output caps - reduces total solution size by 40% vs. 400kHz designs. |
Use Scenario: Supplies MCU, sensors, and actuators in engine control units that must remain functional during engine restart (<500ms) and battery voltage collapse. IC Role / Device Role / Timing Role: Triple-output regulator providing sequenced 5V (MCU core), 3.3V (peripherals), and boosted 10V (fuel injector drivers) with independent enable control. Use Value: 30μA total quiescent current with all rails active meets OEM requirements for <50μA standby consumption; UVLO thresholds prevent false resets during transient dips. |
| Navigation Head Unit | Distributed DC Power Node |
Use Scenario: Powers SoC, memory, GPS receiver, and audio codec in infotainment systems subject to AM/FM radio interference constraints. IC Role / Device Role / Timing Role: High-frequency (2.1MHz) PMIC with spread-spectrum and 180° phase shift - minimizes conducted/radiated noise in sensitive RF front-ends. Use Value: Meets CISPR 25 Level 5 radiated emissions without additional EMI filters; 20ns min on-time ensures stable [email protected] even at lowest input. |
Use Scenario: Centralized power hub supplying multiple sub-modules (camera, radar, telematics) in zonal E/E architectures with varying load profiles. IC Role / Device Role / Timing Role: Configurable triple-output regulator supporting flexible rail assignment (e.g., 5V/3.5A for compute, 3.3V/2A for comms, 10V/boost for analog sensors). Use Value: Independent EN pins and PGOOD signals enable dynamic rail enable/disable based on module activity - cuts system-wide idle power by >60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-output automotive PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4333-AEC1 | Single 3.5A buck + dual 2A bucks; no integrated boost; 2.2MHz fixed freq only; no spread spectrum | Lacks cold-crank support below 3.5V input; requires external boost for sub-3.5V operation | Select when boost is unnecessary and board space favors monolithic buck-only solution |
| TPS65321A-Q1 | Three buck converters (3A/2A/2A); no boost; 2.1MHz; includes watchdog and reset logic; larger 32-pin HTSSOP | No pre-boost capability; relies on external LDO or separate boost IC for cold-crank; adds system-level safety monitoring | Prefer when functional safety (ASIL-B) features like windowed watchdog are required over cold-crank resilience |
Compared with MPQ4333-AEC1 and TPS65321A-Q1, the MAX20057ATIG/VY+T uniquely integrates a 36V boost controller enabling true 2V cold-crank operation without external components, while maintaining 2.1MHz/400kHz flexibility and spread-spectrum EMI control - making it optimal for cost-sensitive, space-constrained automotive modules needing crank-ready power.
Availability
MAX20057ATIG/VY+T is available at Aetrix Electronics and suitable for automotive instrument clusters, start-stop control units, and navigation head units requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX20057ATIG/VY+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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets since 1965.
The MAX20057ATIG/VY+T belongs to Analog Devices' automotive power management portfolio, engineered specifically for ASIL-qualified ECUs needing robust, integrated, cold-crank-capable power conversion in harsh environments.
FAQ
What is the cold-crank input voltage limit supported by the MAX20057ATIG/VY+T?
The MAX20057ATIG/VY+T supports cold-crank operation down to 2.05V input voltage via its integrated 36V boost controller, which pre-boosts the SUPSW rails to maintain regulation of the 5V and 3.3V buck outputs. This capability is validated across the full -40°C to +125°C automotive temperature range and enables uninterrupted operation during engine start events where battery voltage collapses.
Does the MAX20057ATIG/VY+T require external MOSFETs for the boost function?
Yes, the MAX20057ATIG/VY+T requires an external N-channel MOSFET driven by the DL pin for the boost function. The IC provides gate drive capability up to ±1.67A peak current and supports logic-level MOSFETs when powered from the internal 5V BIAS rail. No external MOSFETs are needed for the two integrated synchronous buck converters - their high- and low-side switches are fully internal.
How does the FSYNC pin configure switching modes on the MAX20057ATIG/VY+T?
The FSYNC pin on the MAX20057ATIG/VY+T selects among three modes: driving FSYNC high enables forced PWM (constant frequency), driving it low enables skip mode (ultra-low IQ), and applying an external clock enables PLL-synchronized operation. The FSYNC signal also controls phase alignment - a 50% duty-cycle external clock yields 180° phase shift between Buck1 and Buck2, minimizing input ripple.
What is the purpose of the EXTVCC pin on the MAX20057ATIG/VY+T?
The EXTVCC pin on the MAX20057ATIG/VY+T allows bypassing the internal 5V BIAS LDO by connecting an external 3.25V–5.5V supply (e.g., one of the buck outputs). When valid voltage is present, the IC switches BIAS internally to EXTVCC, reducing power dissipation and improving light-load efficiency. If EXTVCC drops below ~3V, the internal LDO automatically resumes regulation.
Can the MAX20057ATIG/VY+T operate with only one buck converter enabled?
Yes, the MAX20057ATIG/VY+T supports independent enable control via EN1 (Buck1), EN2 (Buck2), and EN3 (Boost). Enabling only Buck1 reduces supply current to 10μA (typ), only Buck2 to 8μA (typ), and disabling all three reduces total current to 1μA (typ). Each buck maintains full regulation and protection functionality regardless of the other's state.
MAX20057ATIG/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller/Converter
- Voltage - Input:
- 3.5V ~ 36V
- Number of Outputs:
- 3
- Voltage - Output:
- 3.3V, 5V, 10V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 28-TQFN (5x5)
MAX20057ATIG/VY+T FAQ
1.How can I place an order for MAX20057ATIG/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20057ATIG/VY+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 MAX20057ATIG/VY+T reliable?
The price and inventory of MAX20057ATIG/VY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20057ATIG/VY+T is usually 5 days.
3.What payment methods are accepted for MAX20057ATIG/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20057ATIG/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20057ATIG/VY+T?
MAX20057ATIG/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20057ATIG/VY+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 MAX20057ATIG/VY+T?
For technical support, including MAX20057ATIG/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20057ATIG/VY+T requirements.
6.How does Aetrix verify that MAX20057ATIG/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX20057ATIG/VY+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 MAX20057ATIG/VY+T meets industry standards.
7.What is the process for return or replacement of MAX20057ATIG/VY+T?
All MAX20057ATIG/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20057ATIG/VY+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 MAX20057ATIG/VY+T part is unused and in its original packaging.
Return procedure for MAX20057ATIG/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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