MAX77541

RECOMMENDED FOR NEW DESIGNS

5.5V_IN/6A, Dual-Phase High-Efficiency Buck Converter

High Power Density and Efficiency Flexible Buck Converter for 1S Battery

Data Sheet (Rev. 1) Product Selection Table

Part Models: 4
1ku List Price: Starting From $1.94

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Part Details

2.2V to 5.5V Input Voltage Range
0.3V to 5.2V Output Voltage Range
Two 3A Bucks (1Φ) or One 6A Buck (2Φ)
±0.5% V_OUT Accuracy (Default V_OUT at 25°C)
91% Peak Efficiency (3.8V_IN, 1.1V_OUT, 1.6MHz)
Auto SKIP/PWM Transition and Low-Power Mode
Drop-Out Operation with 98% of Max. Duty Cycle
Programmable Soft-Start/Soft-Stop and Ramp-up/Ramp-down Slew-rates
Prebiased Startup and Active Output Discharge
Programmable Inductor Peak Current Limits for Solution Size Optimization
0.5/1.0/1.6MHz Nominal Switching Frequency
Spread-Spectrum Modulation for EMI Reduction
Internal/External Frequency Tracking
Default V_OUT and Phase Configuration Setting by R_SEL1 and R_SEL2
I²C Slave ADDR, ILIM, and F_SW Preset by R_CFG
Dedicated ENx, POKx and FPWMx for each Buck
UVLO, Thermal Shutdown, and Short-circuit Protection
High-Speed I²C Serial I/F
Available in 30-WLP (2.51mm x 2.31mm x 0.7mm) and 24-FC2QFN (3mm x 3mm) Packages
Less than 55mm² Total Solution Size with 2520 Inductors

Part Models: 4
1ku List Price: Starting From $1.94

Documentation

Data Sheet 1

MAX77541: 5.5V_IN/6A, Dual-Phase High-Efficiency Buck Converter Data Sheet (Rev.1) 06/03/2022

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX77541AAFG+	24-LFCSP-3X3X0.55	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX77541AAFG+T	24-LFCSP-3X3X0.55	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX77541AAWV+	30-WLCSP-N/A	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX77541AAWV+T	30-WLCSP-N/A	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

Software Development 1

MAX77541 GUI Software, 1.0.0

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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Evaluation Kits

Evaluation Kit for the MAX77541 in Wafer-Level Package

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Features and Benefits

Probe sockets for high-accuracy measurements
Test points for all features (POK, FPWM, EN, and IRQB)
Default output voltage adjustable through SEL
I²C slave ADDR, ILIM, f_SW preset by CFG
Connector for custom I²C host

Product Details

The MAX77541 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the MAX77541 dual-phase configurable step-down regulator. The board is equipped with test points and jumpers for testing all pins on the device. Three potentiometers allow the user to adjust the SEL1/SEL2/CFG configuration pins at will. There are also probe sockets on critical nodes (VOUTx, LXx) for precise measurements. The board also comes with some spare inductors (L3-L6) for testing out efficiency/performance tradeoffs. The PCB is designed with Maxim Integrated’s recommended layout of the IC and external components. The IC sets default output voltages by way of R13 and R14, but can be changed with the potentiometers or through I²C communication. Maxim Integrated’s graphical user interface (GUI) can be used by connecting J11 to a Windows^®-based PC through a MAXUSB_INTERFACE# device.

Applications

Gaming Consoles and VR/AR Headsets
Microprocessors, FPGAs, DSPs, and ASICs
Network Switches and Routers
Single-Cell Li+ and 5VDC Systems

Resources

MAX77541EVKIT ODB Files - Design Files
4/24/2023

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