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Analog Devices Inc./Maxim Integrated MAX77542AAWU+T
- Part No.:
- MAX77542AAWU+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 60-WFBGA, WLBGA
- Datasheet:
-
MAX77542AAWU+T.pdf
- Description:
- IC REG BUCK ADJ 4A QUAD 60WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,613
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Product details
Overview
The MAX77542AAWU+T from Analog Devices is a quad-phase, high-efficiency step-down converter supporting up to 16A total output (4A per phase), with 2.8V–16V input and 0.3V–5.2V programmable output voltage range. It employs adaptive constant-on-time (COT) current-mode control, offers I²C-based dynamic voltage scaling, and integrates a flexible power sequencer for controlled startup/shutdown in multi-rail systems. It targets high-current core supplies for application processors and FPGAs.
For engineers reviewing the MAX77542AAWU+T datasheet, MAX77542AAWU+T pinout, MAX77542AAWU+T application, or MAX77542AAWU+T equivalent, key selection considerations include phase configuration flexibility (1+1+1+1 to 4Φ), ±0.5% output accuracy at +25°C, spread-spectrum EMI reduction, differential voltage sensing, and multifunction I/Os for EN/LPM/FPWM/POK control in noise-sensitive, space-constrained designs.
Technical Context
The MAX77542AAWU+T implements an adaptive COT control architecture with independent phase interleaving and real-time current balancing across four switching phases. Its five configurable phase modes (e.g., 1+1+1+1, 2+2, 3+1) enable optimized trade-offs between transient response, efficiency, and thermal distribution under varying load conditions.
It integrates a flexible power sequencer with programmable soft-start/soft-stop slew rates, prebiased startup, active output discharge, and multifunction I/Os supporting eight distinct roles-including EN, LPM, FPWM, POK, RSTINB, and RSTOB-enabling system-level coordination without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.8V to 16V - supports direct conversion from 1–3-cell Li⁺ batteries and USB-C PD rails without intermediate regulation. |
| Output Voltage Range | 0.3V to 5.2V - covers core, I/O, and auxiliary rail requirements for modern SoCs and FPGAs. |
| Max Output Current | 16A (4A/phase) - scalable via five phase configurations to match load profile and PCB thermal constraints. |
| VOUT Accuracy | ±0.5% at +25°C - ensures tight regulation for voltage-sensitive digital cores without external trimming. |
| Peak Efficiency | 94% at 7.6VIN/3.3VOUT/1MHz - minimizes power loss and thermal stress in compact, high-density layouts. |
| Switching Frequency | 0.5/1.0/1.5MHz nominal - selectable for optimal inductor size, efficiency, and EMI performance. |
| Control Interface | I²C-compatible serial interface - enables dynamic VOUT scaling, fault monitoring, and register-based configuration in real time. |
Pinout & Package
MAX77542AAWU+T is housed in a 60-bump Wafer-Level Package (WLP) measuring 4.36mm × 2.56mm × 0.65mm, with thick UBM metallization for robust thermal and mechanical reliability in high-current applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Input power supply pins | Independent input rails per phase; support split-input or single-source operation with internal UVLO on each. |
| LX1–LX4 | Phase switch-node outputs | Connect to external inductors; each drives one buck phase with integrated high-side/low-side MOSFETs. |
| SNS1P–SNS4P / SNS1N–SNS4N | Differential output voltage sense inputs | Enable Kelvin sensing for ±0.5% accuracy; reject PCB IR drop and noise in high-current paths. |
| MFIO1–MFIO8 | Configurable multifunction I/Os | Programmable as EN, LPM, FPWM, POK, RSTINB, RSTOB, TWARNB, GPI/GPO - reduce external component count. |
| CFG1/CFG2 | Factory configuration pins | Set default phase configuration and OTP options at boot; overrideable via I²C after initialization. |
| SEL1–SEL4 | Preset VOUT selection inputs | Resistor-programmed default output voltages before I²C access; support fast boot without firmware dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive COT control | Delivers fast transient response (<10µs) and stable operation across wide VIN/VOUT/load ranges without external compensation. |
| Flexible phase sequencing | Supports five discrete phase configurations (e.g., 1+1+1+1, 2+2, 4Φ) to optimize ripple cancellation, thermal spreading, and layout routing density. |
| Spread-spectrum modulation | Reduces peak EMI by >10dB in critical 30–100MHz bands - simplifies compliance testing for audio/video and PCIe systems. |
| Prebiased startup & active discharge | Enables safe power-up into precharged loads and rapid rail collapse during shutdown - essential for FPGA configuration sequencing. |
| Internal/external frequency tracking | Allows synchronization to external clock sources or master system clock - eliminates beat frequencies in multi-converter systems. |
Applications
| Application 1 | Application 2 |
|---|---|
Use Scenario: Core power delivery for high-performance application processors in mobile and edge AI platforms. IC Role / Device Role / Timing Role: Primary quad-phase buck regulator supplying CPU/GPU cores with dynamically scaled voltage (via I²C) and precise sequencing relative to memory and I/O rails. Use Value: Enables DVFS implementation with ±0.5% VOUT accuracy and <10µs transient response, extending battery life while maintaining compute throughput. | Use Scenario: Power management for PCIe Gen4/Gen5 add-in cards and RAID controllers requiring clean, low-noise 12V-to-3.3V/1.8V conversion. IC Role / Device Role / Timing Role: High-current, low-EMI buck converter delivering stable 3.3V/1.8V rails with spread-spectrum modulation and differential sensing. Use Value: Meets PCIe EMI limits without shielding; differential sensing maintains regulation accuracy despite board-level voltage drops under 10A peak loads. |
| Application 3 | Application 4 |
Use Scenario: Multi-rail power solution for Xilinx/Intel FPGAs with independent VCCINT, VCCAUX, and VCCIO requirements. IC Role / Device Role / Timing Role: Configurable quad-output buck IC implementing programmable soft-start/soft-stop slew rates and reset coordination via RSTINB/RSTOB. Use Value: Eliminates need for external sequencers; guarantees correct power-up order and prevents latch-up during FPGA configuration. | Use Scenario: Compact, high-efficiency power stage for USB-C PD-powered portable audio/video equipment (e.g., DACs, monitors, capture cards). IC Role / Device Role / Timing Role: Single-chip 16VIN/16A buck converter accepting direct USB-C PD input (5V/9V/15V) and generating multiple low-noise analog/digital rails. Use Value: Reduces BOM count by 40% vs. discrete solutions; 94% peak efficiency extends runtime in thermally constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-phase buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ8645PGLE-Z (Monolithic Power) | 4-phase, 16A, 2.7–16V IN, but uses fixed-frequency current-mode control (not adaptive COT); no spread-spectrum or differential sensing. | Lacks I²C-based dynamic voltage scaling and advanced sequencing - less suitable for DVFS or FPGA power-up coordination. | Select when cost sensitivity outweighs need for EMI reduction or precision sequencing. |
| TPS546D24RQFR (Texas Instruments) | 4-phase, 16A, 3–16V IN, PMBus interface, and telemetry; includes built-in ADC for current/voltage/temp monitoring. | Higher pin count (QFN-40), larger footprint, and PMBus-only interface - requires different firmware stack than I²C. | Select when full telemetry and PMBus ecosystem integration are required over compact WLP form factor. |
Compared with MPQ8645PGLE-Z and TPS546D24RQFR, the MAX77542AAWU+T delivers superior EMI performance via spread-spectrum modulation, tighter output accuracy (±0.5% vs. ±1.0%), and smaller 4.36mm × 2.56mm WLP packaging - making it optimal for space-constrained, noise-sensitive, and dynamically scaled applications.
Availability
MAX77542AAWU+T is available at Aetrix Electronics and suitable for high-current processor power, FPGA core supplies, PCIe card power, and USB-C PD-powered portable electronics requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for MAX77542AAWU+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 technologies, serving industrial, automotive, communications, and consumer markets.
The MAX77542AAWU+T belongs to Analog Devices' Power Management IC portfolio, designed specifically for high-efficiency, multi-phase DC-DC conversion in space- and noise-constrained applications such as mobile SoCs, FPGAs, and high-speed interconnect systems.
FAQ
What is the maximum continuous output current supported by the MAX77542AAWU+T?
The MAX77542AAWU+T supports up to 16A total continuous output current, distributed across four phases (4A per phase). This rating assumes proper thermal management - junction temperature must remain ≤+120°C for full 4A/phase operation. Derating applies above that temperature, per the datasheet's thermal characteristics.
Does the MAX77542AAWU+T support dynamic voltage scaling (DVS)?
Yes, the MAX77542AAWU+T supports real-time dynamic voltage scaling via its high-speed I²C interface. Engineers can adjust output voltage on-the-fly during operation - critical for DVFS in application processors and FPGAs - with guaranteed monotonic transitions and no output glitches.
What package type is used for the MAX77542AAWU+T, and what are its key mechanical dimensions?
The MAX77542AAWU+T uses a 60-bump Wafer-Level Package (WLP) with thick UBM metallization. Its dimensions are 4.36mm × 2.56mm × 0.65mm. This ultra-compact, bottom-terminal package enables minimal PCB area usage and excellent thermal performance in high-current, space-constrained designs.
How does the MAX77542AAWU+T handle power sequencing for multi-rail systems?
The MAX77542AAWU+T integrates a flexible power sequencer (FPS) with programmable soft-start/soft-stop slew rates, prebiased startup, and active output discharge. It coordinates up to four output rails using internal timing or external triggers (e.g., RSTINB/RSTOB), eliminating need for external sequencer ICs in complex SoC/FPGA power trees.
What protection features are built into the MAX77542AAWU+T?
The MAX77542AAWU+T includes undervoltage lockout (UVLO), thermal shutdown (+150°C), short-circuit protection, and comprehensive fault reporting via IRQB pin and I²C registers. It also supports programmable current limits per phase and detects VIO faults, ensuring safe operation under abnormal conditions without external circuitry.
MAX77542AAWU+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 60-WFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 4
- Voltage - Input (Min):
- 16V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.3V
- Voltage - Output (Max):
- 5.2V
- Current - Output:
- 4A
- Frequency - Switching:
- 500kHz, 1MHz, 1.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-WLP (2.56x4.36)
MAX77542AAWU+T FAQ
1.How can I place an order for MAX77542AAWU+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX77542AAWU+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 MAX77542AAWU+T reliable?
The price and inventory of MAX77542AAWU+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX77542AAWU+T is usually 5 days.
3.What payment methods are accepted for MAX77542AAWU+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX77542AAWU+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX77542AAWU+T?
MAX77542AAWU+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX77542AAWU+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 MAX77542AAWU+T?
For technical support, including MAX77542AAWU+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX77542AAWU+T requirements.
6.How does Aetrix verify that MAX77542AAWU+T is sourced from the original manufacturer or authorized distributors?
All MAX77542AAWU+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 MAX77542AAWU+T meets industry standards.
7.What is the process for return or replacement of MAX77542AAWU+T?
All MAX77542AAWU+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX77542AAWU+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 MAX77542AAWU+T part is unused and in its original packaging.
Return procedure for MAX77542AAWU+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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