MAX25249BATPF/VY+

Overview

The MAX25249BATPF/VY+ is a high-efficiency, four-output mini PMIC designed for automotive camera applications. It integrates three DC-DC converters and one high-PSRR LDO. OUT1 is a 1A synchronous step-down converter operating from power-over-coax or car battery sources. OUT2 and OUT3 are low-voltage synchronous step-down converters providing 0.8V to 3.9875V output ranges with up to 1.2A current capability. OUT4 is a low-noise LDO for imager power. The device features ±1.5% output voltage accuracy, overvoltage/undervoltage monitoring, and 2.2MHz fixed-frequency PWM operation.

Feature Summary

• Integrates three synchronous buck converters and one high-PSRR LDO in a compact package
• Provides overvoltage and undervoltage fault monitoring with error communication via RESET pin
• Features programmable spread-spectrum frequency modulation to minimize radiated electromagnetic emissions
• Compliant with ASIL-B safety ratings and AEC-Q100 qualification standards

Applications

• Surround-view cameras
• Rear-view cameras
• High-megapixel camera systems
• Camera serializers and MCU secondary rails

Procurement Notes

Verify the specific suffix 'PF' against official Analog Devices documentation to confirm the exact tape-and-reel packaging configuration and moisture sensitivity level. Ensure the order includes the correct variant designation as distributor listings may vary in descriptive text. Confirm availability status directly with the manufacturer or authorized distributors, as supply constraints may apply to this automotive-grade component.

Selection Notes

Select this component when designing automotive imaging systems requiring ASIL-B compliance and integrated power management. It is suitable for powering high-megapixel sensors and serializers where space is limited. Consider the 2.2MHz switching frequency for noise immunity and the ability to use all ceramic capacitors. Verify that the input voltage range of 4.5V to 36V matches the vehicle's power architecture.

Part Context

This part belongs to the MAX25249/MAX25249B family of four-output mini PMICs specifically engineered for camera applications. The family shares core functionalities but varies in packaging and specific output configurations. These devices address the need for small form factors in modern automotive vision systems while maintaining high efficiency and robust protection features.

Replacement Considerations

The MAX25249ATPC/VY+ is a related variant within the same family. Verify functional equivalence and pin compatibility before substitution. Check datasheet specifications for any differences in output current capabilities or packaging dimensions.