MAX25431

PRODUCTION

Automotive 40V, 2.2MHz, H-Bridge Buck-Boost Controller

Industry's Lowest I_Q Buck-Boost Controller with Best in Class Transient Response

Data Sheet (Rev. 1)

Product Selection Table

Part Models: 4
1ku List Price: Starting From $0.81

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Part Details

Meets Stringent Automotive Quality and Reliability Requirements
- Operating V_IN Range: 2V to 36V Allows Operation in Cold-Crank Conditions
- Tolerates Input Transients to 40V
- EN Pin Compatible from +3.3V to +40V
- -40°C to +125°C Automotive Temperature Range
- AEC-Q100 Qualified
Efficient Solution in a Small Solutions Size
- Fixed 5V Output Voltage and Adjustable 3V to 25V
- High Switching Frequency Allows Use of Small External Components
- Small 4mm x 4mm 24-Pin SWTQFN Package
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements
- 10µA (max) Quiescent Current in Shutdown
EMI Mitigation to meet CISPR25 Class 5 Requirements
- 220kHz to 2.2MHz Operating Frequency
- Fixed-Frequency PWM Mode
- External Frequency Synchronization or SYNC OUT Capability

Part Models: 4
1ku List Price: Starting From $0.81

Documentation

Data Sheet 1

MAX25431: Automotive 40V, 2.2MHz, H-Bridge Buck-Boost Controller Data Sheet (Rev.1) 08/18/2020
- Open Interactive Page

Technical Articles 2

Make Your Automotive Dual USB Type-C with USB Power Delivery Design Cool and Flexible 08/14/2020

USB-C and USB Power Delivery Solutions 05/05/2021

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
MAX25431ATGA/VY+	24-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX25431ATGA/VY+T	24-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX25431ATGB/VY+	24-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX25431ATGB/VY+T	24-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Tools & Simulations

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.

Start EE-Sim Now

Evaluation Kits

Evaluation Kit for the MAX25431

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Features and Benefits

6V to 36V Input Supply Range
Delivers Up to 16A Input Current
Enable Input
Frequency Synchronization Output
Voltage-Monitoring PGOOD Output
BIAS Voltage-Monitoring Test Point
Fully Assembled and Tested
Proven PCB Layout

Product Details

The MAX25431 evaluation kit (EV kit) is a fully assembled and tested application circuit for the MAX25431 current- mode buck-boost controller IC. The EV kit is designed to deliver up to 16A (max) input current with input voltages from 6V to 36V. The voltage quality can be monitored by observing the PGOOD signal.

The IC offers a 3V to 25V OUT programmable range. Switching frequency is adjustable from 220kHz to 2.2MHz, which allows for small external components, reduced output ripple, and guarantees no AM interference. The IC comes with a spread-spectrum frequency-modulation option designed to minimize EMI-radiated emissions and a SYNCOUT function that outputs 180° out-of-phase clock.

Applications

Dedicated Charging Modules
Head-unit, radio, navigation, rear-seat entertainment modules
USB hubs, multi-media box, breakout-boxes

Resources

MAX25431EVKIT ODB Files - Design Files
1.40M

Latest Discussions

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