MAX25249BATPO/VY+

Overview

The MAX25249BATPO/VY+ is a high-efficiency, four-output mini PMIC designed for automotive camera applications. It integrates three DC-DC converters and a high-PSRR LDO with overvoltage/undervoltage monitoring on all outputs. The device operates from an input voltage range of 4.5V to 36V. Output 1 provides up to 1A at 3V to 5V. Outputs 2 and 3 deliver up to 1.2A each within a 0.8V to 3.9875V range. Output 4 is a low-noise LDO. All buck converters achieve ±1.5% output voltage accuracy. The IC features a 2.2MHz fixed-frequency PWM mode and programmable spread-spectrum frequency modulation. It is specified for operation over the -40°C to +125°C automotive temperature range.

Feature Summary

• Integrates three synchronous step-down converters and one high-PSRR LDO in a compact package.
• Provides comprehensive fault monitoring including overvoltage and undervoltage detection with reset communication.
• Features programmable spread-spectrum frequency modulation to minimize radiated electromagnetic emissions.
• Compliant with ASIL-B safety ratings for functional safety requirements.

Applications

• Surround-view cameras
• Rear-view cameras
• High-megapixel camera systems

Procurement Notes

Verify the specific suffix 'PO' against official Analog Devices documentation, as standard listings typically reference 'PA' or 'PF'. Confirm availability status directly with the manufacturer or authorized distributors, as supply constraints may apply. Ensure the selected variant matches the required pinout and factory-settable output voltages for the target design.

Selection Notes

Select this component when designing power solutions for automotive imaging systems requiring ASIL-B compliance. Evaluate the need for integrated sequencing via EN23 and EN4 pins to support different image sensor configurations. Consider the 2.2MHz switching frequency for optimizing external component size while maintaining noise immunity.

Part Context

This part belongs to the MAX25249/MAX25249B family of mini PMICs developed by Maxim Integrated, now part of Analog Devices. These devices are engineered specifically for the stringent power management demands of modern automotive camera modules, offering a consolidated solution that reduces board space compared to discrete implementations.

Replacement Considerations

Publicly confirmed substitute part numbers for the MAX25249BATPO/VY+ variant were not identified in the provided source material. Refer to the manufacturer's datasheet for potential cross-references or updated product line recommendations.