MAX25249BATPO/VY+T

Overview

The MAX25249BATPO/VY+T is a high-efficiency, four-output mini PMIC designed for automotive camera applications. It integrates three DC-DC converters and one LDO within a 20-WETQFN package. The device supports an input voltage range of 4.5V to 36V. Output 1 provides up to 1A from a synchronous buck converter. Outputs 2 and 3 deliver up to 1.2A each via low-voltage synchronous step-down converters with adjustable ranges of 0.8V to 3.9875V. Output 4 is a low-noise LDO rated at 1A. The IC operates at a fixed frequency of 2.2MHz and meets AEC-Q100 Grade 1 standards.

Feature Summary

• Integrates three synchronous buck converters and one high-PSRR LDO in a compact footprint
• Includes overvoltage and undervoltage monitoring on all outputs with error communication via RESET
• Features programmable spread-spectrum frequency modulation to minimize radiated electromagnetic emissions
• Supports flexible sequencing through EN23 and EN4 pins with factory-settable output voltages

Applications

• Surround-view cameras
• Rear-view cameras
• High-megapixel camera systems
• Image sensor power supplies

Procurement Notes

Verify the specific suffix PO against official Analog Devices documentation to confirm pinout and thermal pad configuration differences compared to other variants like PA or PB. Confirm availability status as supply conditions may vary by region. Ensure the component matches the required ASIL-B rating and AEC-Q100 qualification for automotive deployment. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Selection Notes

Select this PMIC when designing automotive vision systems requiring integrated power management for image sensors and serializers. The device is suitable for applications needing high efficiency and noise immunity due to its 2.2MHz switching frequency. Consider the 1A capability of Output 1 for PoC inputs and the separate LDO for sensitive analog domains. Evaluate the need for ASIL-B compliance and the specific output current requirements of 1.2A for Outputs 2 and 3.

Part Context

This component belongs to the MAX25249 family of mini PMICs specifically engineered for camera applications. It consolidates multiple power rails into a single solution, reducing board space compared to discrete designs. The family includes variants with different packaging and output configurations to support diverse automotive imaging architectures while maintaining high reliability standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.