My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX77540AAWV+T
- Part No.:
- MAX77540AAWV+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 30-WFBGA, WLBGA
- Datasheet:
-
MAX77540AAWV+T.pdf
- Description:
- IC REG BUCK PROG 3A/3A DL 30WLP
- Quantity:
- Payment:
- Shipping:
Inventory:3,208
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX77540AAWV+T from Analog Devices is a dual-phase, 6A configurable buck converter IC with adaptive COT current-mode control. It supports single-output (6A) or dual-output (2×3A) operation, 4V–16V input, 0.5V–5.2V output, ±0.5% VOUT accuracy at 25°C, and 94% peak efficiency-designed for powering microprocessors and FPGAs in space-constrained battery-powered systems.
For engineers reviewing the MAX77540AAWV+T datasheet, MAX77540AAWV+T pinout, MAX77540AAWV+T application, or MAX77540AAWV+T equivalent, key selection considerations include phase configuration flexibility (1Φ/2Φ), I²C programmability (3 slave addresses), spread-spectrum EMI reduction, and dual-package availability (30-WLP and 24-FC2QFN).
Technical Context
The MAX77540AAWV+T implements an adaptive constant-on-time (COT) current-mode control architecture with independent phase management. Its two 3A switching phases support either parallel (2Φ, 6A) or independent (1Φ + 1Φ, 3A each) configurations, enabling dynamic load sharing and seamless transition between modes via SEL1/SEL2 pins.
It integrates dedicated internal supplies (VL, VDD), alternative low-voltage input (ALT_IN) with 2.8V switchover threshold, and comprehensive fault protection-including UVLO, thermal shutdown at +165°C, and short-circuit detection-ensuring robust operation across industrial temperature range (−40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 16V - enables direct step-down from 3-cell Li⁺, USB-C PD, and 12V rails without pre-regulation. |
| Output Configuration | Configurable as 1×6A (2Φ) or 2×3A (1Φ+1Φ) - supports scalable power delivery for multi-rail SoC/FPGA designs. |
| Output Voltage Range | 0.5V to 5.2V - covers core, I/O, and auxiliary rails for modern processors and ASICs. |
| VOUT Accuracy | ±0.5% at 25°C (default setting) - ensures tight regulation critical for low-voltage logic domains. |
| Peak Efficiency | 94% at 7.6VIN/3.3VOUT/1MHz - minimizes thermal stress and extends battery runtime. |
| Switching Frequency | 0.5/1.0/1.6MHz nominal - selectable for optimal trade-off between size, efficiency, and EMI. |
| I²C Interface | High-speed, 3-slave-address options - enables dynamic voltage scaling, soft-start control, and telemetry in system-level PMIC architectures. |
Pinout & Package
The MAX77540AAWV+T is packaged in a 30-bump WLP (2.51mm × 2.31mm, 0.4mm pitch) with bottom-side solder bumps. This ultra-compact package supports <55mm² total solution size and is optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1 / IN2 | Primary input power rails | Independent 4V–16V inputs per phase; enable flexible sourcing (e.g., battery + adapter). |
| LX1 / LX2 | Switch node outputs | Drive external power inductors; require low-inductance layout to minimize ringing and EMI. |
| SNS1 / SNS2 | Output voltage sense inputs | Enable precision feedback for each buck output; support remote sensing for improved load regulation. |
| EN1 / EN2 | Phase enable controls | Hardware-enable/disable individual phases; allow dynamic rail sequencing and power gating. |
| FPWM1B / FPWM2B | Forced PWM mode inputs | Override SKIP/LP-SKIP to enforce fixed-frequency operation-critical for noise-sensitive analog subsystems. |
| POK1 / POK2 | Power-good status outputs | Open-drain indicators confirming regulated output within ±5% tolerance; used for system reset coordination. |
| IRQB | Interrupt request output | Active-low, open-drain fault signaling (thermal warning, overcurrent, UVLO); supports interrupt-driven system monitoring. |
| SEL1 / SEL2 | Phase configuration select | Set 1Φ+1Φ or 2Φ mode at power-up; determine default VOUT1/VOUT2 via resistor divider mapping. |
| ADDR | I²C slave address select | Selects one of three I²C addresses (0x48, 0x49, 0x4A) - allows multiple MAX77540 devices on same bus. |
| SCL / SDA | I²C serial interface | Supports high-speed mode (up to 400kHz); enables real-time VOUT adjustment, slew-rate control, and register readback. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive COT control | Delivers fast transient response (<10µs) and stable regulation across wide VIN/VOUT/load ranges without external compensation. |
| Spread-spectrum modulation | Reduces peak EMI by >10dB across 100kHz–1GHz - simplifies compliance testing for FCC/CE Class B emissions. |
| Pre-biased startup & active discharge | Enables safe power-up into pre-charged loads and controlled ramp-down during shutdown - prevents backfeed and bus contention. |
| Programmable inductor peak current limits | Four selectable ILIM thresholds (1.5A–4.5A) - allows optimization for different inductor DCR and saturation margins. |
| Dedicated ALT_IN input | Provides secondary 2.7V–5.5V supply path with automatic switchover - supports hybrid power architectures (e.g., battery + LDO backup). |
Applications
| Mobile Application Processor Power | FPGA Core & I/O Rail Supply |
|---|---|
Use Scenario: Powering application processors (e.g., Qualcomm Snapdragon, MediaTek Dimensity) in smartphones and tablets with dynamic DVFS requirements. IC Role / Device Role / Timing Role: Dual-phase buck regulator delivering tightly regulated 0.8V core and 1.8V I/O rails with I²C-controlled voltage scaling. Use Value: Enables sub-1V core operation with ±0.5% accuracy and 94% efficiency-extending battery life while meeting stringent thermal envelope limits. | Use Scenario: Supplying configurable core (0.75–1.2V) and bank-specific I/O (1.2–3.3V) rails for Xilinx Artix/Kintex or Intel Cyclone/Arria FPGAs. IC Role / Device Role / Timing Role: Programmable dual-output buck managing rail sequencing, soft-start timing, and dynamic voltage adjustment during partial reconfiguration. Use Value: Reduces external component count by integrating two high-current bucks and eliminating discrete sequencing ICs-cutting BOM cost and board area. |
| USB-C PD Fast-Charging Systems | PCIe/RAID Card Power Management |
Use Scenario: Converting USB-C PD 9V/15V/20V input to 3.3V/5V rails for portable SSDs, dongles, and docking stations. IC Role / Device Role / Timing Role: High-input-voltage buck converter supporting 16V max input and dropout operation down to 98% duty cycle. Use Value: Eliminates need for intermediate pre-regulator stages-reducing conversion losses and improving overall system efficiency above 90%. | Use Scenario: Providing stable 12V-to-3.3V/1.8V conversion for PCIe add-in cards and enterprise RAID controllers operating in thermally constrained server chassis. IC Role / Device Role / Timing Role: Dual-phase buck delivering 6A total with thermal warning (120°C/140°C) and shutdown (165°C) for sustained high-load operation. Use Value: Maintains reliable operation under continuous 100% load with built-in thermal protection-avoiding unexpected resets during intensive data transfers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-phase buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65988DHAR | Integrated USB-C PD controller + dual buck (3A each); lacks ALT_IN and spread-spectrum modulation. | Targeted specifically for USB-C source/sink applications; not optimized for general-purpose processor power. | Choose when USB-C PD negotiation and port control are required alongside power conversion. |
| ISL9122AIRZ-T7A | Single-chip 6A buck with integrated inductor; no I²C, no phase-splitting, no spread-spectrum. | Designed for ultra-compact footprint where external inductors are prohibited; limited configurability. | Choose for space-constrained consumer wearables where full programmability is unnecessary. |
Compared with TPS65988DHAR and ISL9122AIRZ-T7A, the MAX77540AAWV+T offers unique flexibility in phase configuration, I²C-based dynamic control, and EMI-reduction features-making it optimal for custom embedded and compute platforms requiring both performance and design adaptability.
Availability
The MAX77540AAWV+T is available at Aetrix Electronics and suitable for mobile computing, FPGA power delivery, and USB-C PD fast-charging systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX77540AAWV+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 industrial, automotive, communications, and healthcare markets.
The MAX77540AAWV+T belongs to Analog Devices' high-efficiency power management product line, engineered for advanced portable and embedded systems demanding compact, configurable, and low-noise DC-DC conversion.
FAQ
What is the maximum input voltage supported by the MAX77540AAWV+T?
The MAX77540AAWV+T supports a maximum input voltage of 16V across its IN1 and IN2 pins, with absolute maximum ratings up to +17.6V for short transients. This allows direct connection to 3-cell Li⁺ batteries, USB-C PD sources, and standard 12V DC rails without external pre-regulation-enabling simplified power architecture in portable and industrial equipment.
Does the MAX77540AAWV+T support both single-output and dual-output configurations?
Yes, the MAX77540AAWV+T supports both configurations via hardware-selectable SEL1/SEL2 pins: it can operate as a single 6A output (2Φ mode) or two independent 3A outputs (1Φ+1Φ mode). This flexibility allows designers to optimize for either higher current density or multi-rail isolation-without changing the IC or layout-making the MAX77540AAWV+T adaptable across diverse SoC and FPGA power schemes.
What package options are available for the MAX77540AAWV+T?
The MAX77540AAWV+T is offered in two packages: a 30-bump WLP (2.51mm × 2.31mm) and a 24-pin FC2QFN (3mm × 3mm). The WLP variant enables ultra-compact designs (<55mm² total solution size), while the FC2QFN provides enhanced thermal performance (θJA = 36.64°C/W) and easier assembly for prototyping and medium-volume production-both are RoHS-compliant and pin-compatible at the functional level.
How does the MAX77540AAWV+T reduce electromagnetic interference (EMI)?
The MAX77540AAWV+T reduces EMI through programmable spread-spectrum modulation (triangular or pseudo-random patterns), frequency tracking, and selectable switching frequencies (0.5/1.0/1.6MHz). These features lower peak spectral energy by spreading noise across a wider bandwidth-achieving >10dB EMI reduction-enabling faster EMC certification for handheld, medical, and industrial devices without added shielding or filtering components.
What protections are built into the MAX77540AAWV+T?
The MAX77540AAWV+T includes undervoltage lockout (UVLO), thermal shutdown at +165°C, thermal warnings at +120°C/+140°C, short-circuit protection, and overcurrent limiting via programmable inductor peak current thresholds. These safeguards ensure safe operation under abnormal conditions-including input brownout, excessive ambient temperature, and output overload-without requiring external supervision circuitry, thereby enhancing system reliability in mission-critical applications.
MAX77540AAWV+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 30-WFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.5V
- Voltage - Output (Max):
- 5.2V
- Current - Output:
- 3A, 3A
- Frequency - Switching:
- 500kHz, 1MHz, 1.6MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 30-WLP (2.51x2.31)
MAX77540AAWV+T FAQ
1.How can I place an order for MAX77540AAWV+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX77540AAWV+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 MAX77540AAWV+T reliable?
The price and inventory of MAX77540AAWV+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX77540AAWV+T is usually 5 days.
3.What payment methods are accepted for MAX77540AAWV+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX77540AAWV+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX77540AAWV+T?
MAX77540AAWV+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX77540AAWV+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 MAX77540AAWV+T?
For technical support, including MAX77540AAWV+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX77540AAWV+T requirements.
6.How does Aetrix verify that MAX77540AAWV+T is sourced from the original manufacturer or authorized distributors?
All MAX77540AAWV+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 MAX77540AAWV+T meets industry standards.
7.What is the process for return or replacement of MAX77540AAWV+T?
All MAX77540AAWV+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX77540AAWV+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 MAX77540AAWV+T part is unused and in its original packaging.
Return procedure for MAX77540AAWV+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX77540AAWV+T Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
