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Analog Devices Inc./Maxim Integrated MAX20057ATIG/VY+
- Part No.:
- MAX20057ATIG/VY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
MAX20057ATIG/VY+.pdf
- Description:
- IC REG BOOST ADJ/1V DL 28TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,457
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Product details
Overview
MAX20057ATIG/VY+ from Analog Devices is an automotive-grade triple-output power management IC integrating two synchronous buck converters (5V/3.3V fixed or 1–14V adjustable, 3.5A/2A) and a 36V asynchronous boost controller with cold-crank support down to 2V input. It operates from 3.5V to 36V input, delivers 180° out-of-phase switching at 2.1MHz or 400kHz, and features spread-spectrum EMI reduction, PGOOD indicators, and thermal shutdown - designed for instrument clusters and start-stop systems.
For engineers reviewing the MAX20057ATIG/VY+ datasheet, MAX20057ATIG/VY+ pinout, MAX20057ATIG/VY+ application, or MAX20057ATIG/VY+ equivalent, key selection considerations include its dual-buck phase interleaving, crank-ready 2V operation, FSYNC-programmable skip/FPWM modes, 20ns minimum on-time at 2.1MHz, and thermally enhanced 5mm × 5mm TQFN-EP package with exposed pad.
Technical Context
The MAX20057ATIG/VY+ implements valley-current-mode control for both buck converters, enabling stable regulation across wide VIN ranges including automotive cold-crank (down to 2V with preboost). Its 180° phase shift between Buck1 and Buck2 reduces input ripple, while the boost controller supports SEPIC configuration and independent sequencing via EN3.
FSYNC enables PLL-based synchronization to external clocks (250kHz–2.6MHz), with programmable mode selection: forced PWM (constant frequency), skip mode (ultra-low IQ), or spread-spectrum operation (±6% modulation). The internal 5V BIAS LDO can be bypassed via EXTVCC (3.25–5.5V) to reduce dissipation and improve light-load efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.5V to 36V continuous; supports cold-crank operation down to 2V with boost pre-regulation |
| Buck1 Output | Fixed 5V/3.3V or adjustable 1V–14V; 3.5A continuous; 95% max duty cycle |
| Buck2 Output | Fixed 5V/3.3V or adjustable 1V–14V; 2A continuous; 180° out-of-phase with Buck1 |
| Boost Controller | 36V max input; 10V fixed or adjustable output; 50mV current-limit threshold; DL gate driver supports 1.67A peak |
| Switching Frequency | Factory-set 2.1MHz or 400kHz; ±6% spread spectrum option; FSYNC-synchronizable up to 2.6MHz |
| Quiescent Current | 10μA (5V buck active), 8μA (3.3V buck active), 30μA (all regulators active) |
| Operating Temperature | -40°C to +125°C ambient; thermal shutdown at +170°C with 20°C hysteresis |
Pinout & Package
MAX20057ATIG/VY+ uses a thermally enhanced 5mm × 5mm, 28-pin TQFN-EP package (package code T2855Y+5C) with exposed pad connected to AGND for optimal heat dissipation (θJC = 3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Digital enable inputs | High-voltage tolerant (to 40V); independently control Buck1, Buck2, and Boost; support power sequencing |
| FB1, FB2, FB3 | Feedback inputs | Regulated to 1.0V (typ); enable fixed or adjustable outputs via resistor dividers; leakage <1μA |
| LX1, LX2 | Switch node connections | Drive external inductors; support high-side MOSFET gate drive via BST1/BST2 bootstrap capacitors |
| PGOOD1, PGOOD2 | Open-drain status outputs | Assert low when output drops below 93.5% of nominal; high-impedance above 95%; require external pull-up |
| FSYNC | External clock input | Enables PLL synchronization; determines Buck1/Buck2 phase relationship (50% duty cycle → 180° shift) |
| BIAS, EXTVCC | Internal LDO and switchover supply | BIAS = 5V internal rail; EXTVCC bypasses BIAS when 3.25–5.5V applied, reducing power loss |
Key Features
| Feature | Design Value |
|---|---|
| Cold-crank resilience | Maintains regulated 5V/3.3V outputs during battery dips to 2V via integrated boost pre-regulator |
| EMI optimization | 20ns min on-time at 2.1MHz prevents skip-mode instability; ±6% spread spectrum reduces peak emissions |
| Thermal reliability | Exposed-pad TQFN-EP package with θJC = 3°C/W; thermal shutdown at 170°C with 20°C hysteresis |
| Power sequencing control | Three independent enable pins (EN1/EN2/EN3) allow staggered startup and fault isolation per rail |
| Efficiency scaling | EXTVCC switchover reduces internal LDO dissipation; skip mode achieves 8μA/10μA quiescent current |
Applications
| Instrument Cluster Power Supply | Start-Stop System DC-DC Stage |
|---|---|
Use Scenario: Centralized power delivery for LCD display, microcontroller, CAN transceivers, and backlight drivers in digital dashboards. IC Role / Device Role / Timing Role: Triple-output PMIC providing isolated, sequenced 5V, 3.3V, and 10V rails with PGOOD monitoring and cold-crank hold-up. Use Value: Eliminates need for discrete boost + dual buck solutions; 2.1MHz operation enables <10μH inductors and compact layout. | Use Scenario: Maintaining stable MCU and sensor power during engine restart when battery voltage collapses to 2–6V. IC Role / Device Role / Timing Role: Preboost controller sustains buck input above dropout during cranking; 180° interleaving minimizes input capacitor stress. Use Value: Enables seamless stop-start operation without brownouts; 30μA standby current extends battery life in parked state. |
| Navigation Head Unit Power | Distributed Automotive ECUs |
Use Scenario: Powering GPS module, audio DSP, touchscreen controller, and RF front-end in infotainment systems. IC Role / Device Role / Timing Role: High-efficiency dual-buck regulator with spread-spectrum EMI control to avoid AM band interference. Use Value: 2.1MHz switching avoids 530–1710kHz AM radio band; FSYNC allows synchronized multi-rail noise cancellation. | Use Scenario: Compact, robust power solution for zone controllers, ADAS domain processors, or body control modules. IC Role / Device Role / Timing Role: Integrated PMIC delivering multiple isolated rails with undervoltage lockout, overtemperature protection, and hiccup-mode OCP. Use Value: Reduces BOM count by replacing three discrete regulators; -40°C to +125°C rating ensures under-hood reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20090ATG/VY+ | Single 3.5A buck + 36V boost; no second buck channel; same 5mm × 5mm TQFN-EP package | Suitable for simpler systems requiring only one main rail plus preboost | Select when dual-buck interleaving is unnecessary and board space is constrained |
| TPS653211C0RGER | TI part with dual 3A bucks + 36V boost; 400kHz/2.1MHz selectable; different pinout and control logic (I²C interface) | Requires I²C configuration; lacks spread-spectrum but adds watchdog and fault reporting | Choose when system-level diagnostics and programmability outweigh pin-compatibility needs |
Compared with MAX20057ATIG/VY+, MAX20090ATG/VY+ reduces integration for cost-sensitive single-rail designs, while TPS653211C0RGER trades analog control simplicity for digital configurability and enhanced monitoring - neither is pin-compatible, but both serve overlapping automotive power domains.
Availability
MAX20057ATIG/VY+ is available at Aetrix Electronics and suitable for automotive start-stop systems, instrument clusters, navigation head units, and distributed ECU power architectures requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX20057ATIG/VY+ 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.
The MAX20057ATIG/VY+ belongs to Analog Devices' automotive power management portfolio, engineered specifically for ASIL-B compliant systems requiring crank-ready operation, ultra-low quiescent current, and EMI-robust switching in harsh environments.
FAQ
What is the minimum input voltage supported by MAX20057ATIG/VY+ during cold-crank conditions?
The MAX20057ATIG/VY+ maintains regulated output during cold-crank events down to 2V input voltage when the boost controller is enabled and configured to pre-regulate the buck inputs. This capability is validated per automotive OEM requirements and relies on the boost controller's UVLO falling threshold of 2.05V (min), which can be disabled to extend functionality below 2V.
Does MAX20057ATIG/VY+ support external synchronization of its switching frequency?
Yes, MAX20057ATIG/VY+ supports external clock synchronization via the FSYNC pin. It uses an internal PLL to lock to external frequencies from 250kHz to 2.6MHz. A 50% duty-cycle FSYNC signal yields 180° phase shift between Buck1 and Buck2, and the device passes any modulation (including spread spectrum) present on the external clock source.
How does the EXTVCC pin affect the operation of MAX20057ATIG/VY+?
The EXTVCC pin on MAX20057ATIG/VY+ allows bypassing the internal 5V BIAS LDO by applying 3.25V–5.5V externally. When valid voltage is present, the IC switches BIAS to EXTVCC and disables the internal LDO, reducing power dissipation and improving light-load efficiency. If EXTVCC drops below ~3V, the internal LDO automatically resumes operation.
What protection features are integrated into MAX20057ATIG/VY+?
MAX20057ATIG/VY+ integrates cycle-by-cycle current limiting on all three channels, thermal shutdown at +170°C (with 20°C hysteresis), undervoltage lockout on BIAS (3.1V rising / 2.6V falling) and boost SUP (4.5V rising), hiccup-mode overcurrent recovery (~10ms retry interval), and open-drain PGOOD monitoring with 20μs debounce for each buck output.
Can MAX20057ATIG/VY+ generate adjustable output voltages for both buck converters?
Yes, MAX20057ATIG/VY+ supports adjustable outputs from 1V to 14V for both Buck1 and Buck2 by connecting FB1 and FB2 to external resistor dividers between OUT1/OUT2 and AGND. The feedback reference is tightly regulated at 1.0V (±1.5%), enabling precise output programming; fixed 5V/3.3V operation is achieved by tying FB1/FB2 to the BIAS rail.
MAX20057ATIG/VY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 1V (3.3V, 5V)
- Voltage - Output (Max):
- 14V
- Current - Output:
- 2A, 3.5A
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 28-TQFN (5x5)
MAX20057ATIG/VY+ FAQ
1.How can I place an order for MAX20057ATIG/VY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20057ATIG/VY+ 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+ reliable?
The price and inventory of MAX20057ATIG/VY+ 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+ is usually 5 days.
3.What payment methods are accepted for MAX20057ATIG/VY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20057ATIG/VY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20057ATIG/VY+?
MAX20057ATIG/VY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20057ATIG/VY+ 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+?
For technical support, including MAX20057ATIG/VY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20057ATIG/VY+ requirements.
6.How does Aetrix verify that MAX20057ATIG/VY+ is sourced from the original manufacturer or authorized distributors?
All MAX20057ATIG/VY+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX20057ATIG/VY+?
All MAX20057ATIG/VY+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20057ATIG/VY+, 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+ part is unused and in its original packaging.
Return procedure for MAX20057ATIG/VY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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