My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX77711AEWB+
- Part No.:
- MAX77711AEWB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 64-WFBGA, WLBGA
- Datasheet:
-
MAX77711AEWB+.pdf
- Description:
- IC 4-PH CONFIG BUCK REG LDO WLP
- Quantity:
- Payment:
- Shipping:
Inventory:925
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX77711AEWB+ from Analog Devices is a quad-phase, 3A/phase configurable buck regulator with integrated 300mA pMOS LDO, supporting 2.3V–10V input and 0.25V–5.2V I²C-programmable output voltage across up to four independent outputs. It enables flexible phase configurations (4Φ, 3+1Φ, 2+2Φ, etc.) and delivers up to 12A total output current. Used in high-performance portable imaging systems like DSLR/mirrorless cameras and FPGA-powered robotics.
For engineers reviewing the MAX77711AEWB+ datasheet, MAX77711AEWB+ pinout, MAX77711AEWB+ application, or MAX77711AEWB+ equivalent, this page provides verified electrical specifications, GPIO-mapped control functions, phase-configuration options, thermal protection behavior, and real-world sequencing timing data - all specific to the MAX77711AEWB+ WLP package variant.
Technical Context
The MAX77711AEWB+ implements adaptive off-time control per phase with pseudo-random spread-spectrum modulation to suppress EMI. Its flexible power sequencer supports programmable soft-start/stop slew rates and slot-based timing (0.625–5ms per slot) for precise multi-rail power-up/down coordination.
Six multi-function GPIOs support hardware enable, DVS, FPWM, and Power-OK signaling, while internal current sensing enables real-time buck output monitoring. The integrated 300mA LDO (VLDO: 0.4V–1.975V) operates independently with dedicated INLDO and VLDO pins and factory-configurable enable logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.3V to 10V - supports 2-cell Li+/Li-ion battery stacks (7.4V nominal) and wide-input industrial rails. |
| Output Voltage Range | 0.25V–5.2V (5mV steps below 1.3V; 20mV steps above 1V) - enables precise core voltage scaling for SoCs/FPGAs. |
| Max Output Current | 12A (4×3A phases combined) - scalable via pin- or I²C-programmed phase configuration (4Φ, 3+1Φ, 2+2Φ, etc.). |
| Switching Frequency | 1MHz nominal per phase - balances efficiency, inductor size, and transient response; supports spread-spectrum options. |
| LDO Output | 300mA pMOS LDO (MAX77711 only), 0.4V–1.975V - supplies low-noise bias for analog/IO rails or sequencing controllers. |
| Package | 64-bump WLP, 3.54mm × 3.54mm, 0.4mm pitch - ultra-compact footprint for space-constrained portable designs. |
| Protection Features | Hard/soft short-circuit, UVLO (2.1V rising / 1.9V falling), thermal shutdown (>125°C), OTLO alarm - ensures robust operation under fault conditions. |
Pinout & Package
MAX77711AEWB+ uses a 64-bump wafer-level package (WLP), outline W643D3+1, with 0.4mm pitch and 3.54mm × 3.54mm body size. Bump layout follows JEDEC MO-263AC standard with defined A1 corner marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1/IN2, IN3/IN4 | Buck input supply pairs | Dual-input architecture allows independent or shared sourcing for phase grouping (e.g., 2Φ+2Φ). |
| LX1–LX4 | Phase switch-node outputs | Each drives external inductor; supports synchronous rectification and phase interleaving. |
| SNS1+–SNS4+, SNS1−–SNS4− | Current-sense differential inputs | Enable per-phase output current monitoring without shunt resistors. |
| PHCFG0, PHCFG1 | Hardware phase-configuration select | Set initial phase topology (4Φ, 3+1Φ, 2+2Φ, etc.) at power-on before I²C initialization. |
| GPIO1–GPIO6 | Multi-function digital I/O | Configurable as enable, DVS, FPWM, POK, or general-purpose signals; mapped via register or OTP. |
| nIRQ | Open-drain interrupt output | Asserts on fault (thermal, short, UVLO) or status change; requires external pull-up. |
| SDA, SCL | I²C serial interface | Standard 100kHz/400kHz operation; supports multiple slave addresses (0x48–0x4B). |
| INLDO, VLDO | LDO input and output | INLDO accepts 1.25V–5.5V; VLDO delivers 0.4V–1.975V at ≤300mA with ±1.5% accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Quad-phase configurability | Four 3A switching phases combinable into 1–4 regulated outputs (e.g., 12A single-rail or 3A×4 independent rails). |
| Pseudo-random spread-spectrum | Reduces peak EMI by >10dB across 1MHz switching band without external filtering components. |
| Flexible power sequencer (FPS) | Programmable slot timing (0.625–5ms) and state transitions enable deterministic multi-rail startup/shutdown for FPGAs and ASICs. |
| Integrated 300mA LDO | Dedicated low-noise rail for camera sensor IO, PLLs, or sequencing logic - eliminates need for external LDO in compact designs. |
| Per-phase current monitoring | Internal sense amplifiers feed system ADC via AMUX, enabling real-time load profiling and dynamic power management. |
Applications
| DSLR & Mirrorless Cameras | FPGA/ASIC Core Power |
|---|---|
Use Scenario: High-resolution image capture with simultaneous sensor readout, ISP processing, and video encoding. IC Role / Device Role / Timing Role: Primary multi-rail power manager delivering 1.2V core, 1.8V IO, 3.3V lens actuator, and 5V USB-PD rail with synchronized sequencing. Use Value: Phase interleaving reduces input ripple by 70% vs. single-phase, minimizing noise coupling into analog sensor paths. | Use Scenario: Configurable logic and memory subsystems requiring tightly controlled voltage ramps and rail ordering. IC Role / Device Role / Timing Role: Configurable buck + LDO supplies FPGA VCCINT (0.85V), VCCAUX (1.8V), VCCO (3.3V), and auxiliary 1.2V clocks with FPS-controlled sequencing. Use Value: Programmable soft-start slew rate prevents inrush current exceeding 5A during FPGA configuration, avoiding brownout. |
| 2-Cell Li+ Robotics | Notebook Embedded Controllers |
Use Scenario: Mobile robot with motor drivers, IMU, vision processor, and wireless comms operating from 7.4V battery. IC Role / Device Role / Timing Role: Central PMIC supplying 5V motor gate drive, 3.3V MCU, 1.1V vision SoC core, and 1.8V SerDes with thermal-aware throttling. Use Value: Integrated thermal alarm triggers automatic DVS reduction before junction exceeds 125°C, preserving runtime under sustained load. | Use Scenario: Thin-and-light notebook requiring ultra-compact power solution for embedded controller (EC), keyboard backlight, and touchpad. IC Role / Device Role / Timing Role: Single-chip replacement for discrete buck + LDO + sequencer, powering EC VDD (3.3V), LED driver (5V), and touchpad IO (1.8V). Use Value: 3.54mm × 3.54mm WLP saves >40% board area vs. QFN alternatives while maintaining 94% peak efficiency at 3.3V/7.4V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-phase buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX77511AEWB+ | No integrated LDO; identical buck architecture, pinout, and I²C register map. | Requires external LDO for auxiliary rails; suitable when LDO not needed or already present. | Select MAX77511AEWB+ when system has separate low-noise LDO or uses only buck outputs. |
| TPS65988DHAR | USB-C PD controller with dual 3A bucks; no phase configurability, fixed 2-output topology. | Targeted at USB-C host devices; lacks GPIO flexibility and FPS granularity of MAX77711AEWB+. | Choose TPS65988DHAR only for USB-C PD + dual-rail applications where USB protocol handling is required. |
Compared with MAX77511AEWB+, the MAX77711AEWB+ adds a verified 300mA LDO for auxiliary biasing without increasing footprint; versus TPS65988DHAR, it offers superior phase flexibility and sequencing control but no native USB-C PD functionality.
Availability
MAX77711AEWB+ is available at Aetrix Electronics and suitable for DSLR cameras, FPGA power delivery, 2-cell Li+ robotics, and notebook embedded controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX77711AEWB+ 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 consumer markets.
The MAX77711AEWB+ belongs to the MAX77xxx family of highly integrated PMICs designed specifically for space-constrained, battery-powered imaging and computing platforms demanding multi-rail precision, thermal resilience, and firmware-configurable power sequencing.
FAQ
What is the maximum output current capability of the MAX77711AEWB+?
The MAX77711AEWB+ supports up to 12A total output current by combining all four 3A phases in 4Φ mode. Each phase delivers 3A continuously, and configurations like (3+1)Φ provide 6A + 3A on separate rails. Peak current per phase remains 3A regardless of grouping, and thermal derating applies above +70°C ambient per the 38.2°C/W θJA rating.
Does the MAX77711AEWB+ include an integrated LDO, and what are its specifications?
Yes, the MAX77711AEWB+ integrates a 300mA pMOS LDO (not present in MAX77511). Its output voltage is adjustable from 0.4V to 1.975V in 25mV steps, with ±1.5% accuracy over temperature and line. Input range is 1.25V–5.5V (INLDO), and it features hardware/software/FPS enable control and independent thermal protection.
How does the phase configuration work on the MAX77711AEWB+?
The MAX77711AEWB+ uses two dedicated pins (PHCFG0, PHCFG1) to set one of five hardware-defined topologies at power-on: 4Φ, (3+1)Φ, (2+2)Φ, (2+1+1)Φ, or (1+1+1+1)Φ. This determines how the four phases map to feedback loops and output rails. Configuration can be overridden via I²C registers after boot, enabling dynamic reassignment during operation.
What protection features are built into the MAX77711AEWB+?
The MAX77711AEWB+ includes hard and soft short-circuit protection per buck channel, input undervoltage lockout (UVLO: 2.1V rising / 1.9V falling), thermal shutdown (>125°C), and overtemperature lockout (OTLO) warning at 115°C. All protections trigger nIRQ assertion and can be configured to auto-recover or latch, with status readable via I²C registers.
Is the MAX77711AEWB+ pin-compatible with other members of the MAX77xxx family?
The MAX77711AEWB+ shares identical 64-bump WLP pinout and bump assignment with MAX77511AEWB+, including all LX, IN, SNS, GPIO, and control pins. However, MAX77511 lacks the INLDO/VLDO pins and associated LDO circuitry - those bumps are no-connect in MAX77511. Thus, MAX77711AEWB+ is backward compatible in layout but not functionally drop-in without LDO routing.
MAX77711AEWB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 64-WFBGA, WLBGA
- Packaging:
- Strip
- Product Status:
- Active
- Applications:
- Converter, Battery Powered Devices
- Voltage - Input:
- 2.3V ~ 10V
- Number of Outputs:
- 4
- Voltage - Output:
- 0.25V ~ 5.2V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-WLP (3.54x3.54)
MAX77711AEWB+ FAQ
1.How can I place an order for MAX77711AEWB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX77711AEWB+ 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 MAX77711AEWB+ reliable?
The price and inventory of MAX77711AEWB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX77711AEWB+ is usually 5 days.
3.What payment methods are accepted for MAX77711AEWB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX77711AEWB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX77711AEWB+?
MAX77711AEWB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX77711AEWB+ 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 MAX77711AEWB+?
For technical support, including MAX77711AEWB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX77711AEWB+ requirements.
6.How does Aetrix verify that MAX77711AEWB+ is sourced from the original manufacturer or authorized distributors?
All MAX77711AEWB+ 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 MAX77711AEWB+ meets industry standards.
7.What is the process for return or replacement of MAX77711AEWB+?
All MAX77711AEWB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX77711AEWB+, 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 MAX77711AEWB+ part is unused and in its original packaging.
Return procedure for MAX77711AEWB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX77711AEWB+ Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
Texas Instruments
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…
