MAX25249ATPAS/VY+T

Overview

The MAX25249ATPAS/VY+T is a high-voltage, ASIL-B certified camera power management IC (PMIC) designed for automotive imaging systems. It integrates four synchronous buck converters and one low-dropout regulator (LDO), operating from an input voltage range of 4.5 V to 36 V. The device supports output voltages from 800 mV to 3.9875 V with switching frequencies up to 2.2 MHz. Packaged in a 20-WETQFN (3.5x3.5 mm) surface-mount footprint, it meets AEC-Q100 standards and operates within a temperature range of -40°C to +125°C.

Feature Summary

• ASIL-B functional safety compliance for automotive camera applications
• Integrated multi-output topology combining synchronous buck and LDO regulators
• High-voltage input capability supporting wide automotive supply ranges
• Compact surface-mount package with wettable flanks for inspection

Applications

• Automotive surround-view camera systems
• Advanced driver-assistance system (ADAS) image sensors
• In-vehicle infotainment camera modules
• High-voltage sensor power distribution networks

Procurement Notes

Verify the exact suffix configuration against the manufacturer datasheet, as variations such as 'PA' or 'PE' may indicate different packaging or tape-and-reel specifications. Confirm availability status directly with Analog Devices or authorized distributors, as supply constraints may apply to this specific part number variant. Ensure the ordering code matches the required thermal and mechanical specifications for your PCB design.

Selection Notes

Select this component when designing automotive vision systems requiring ISO 26262 ASIL-B compliance. It is suitable for powering multiple camera sensors from a single high-voltage rail. Compare output current capabilities and thermal performance against alternative PMICs if higher channel counts are needed. Verify that the 20-pin QFN package fits within the available board space and thermal budget of the target application.

Part Context

This part belongs to the MAX25249 family of specialized PMICs developed by Maxim Integrated, now part of Analog Devices. The series targets the growing demand for integrated power solutions in autonomous driving and vehicle safety systems. Related parts in the lineup include variants with different output configurations or packaging options, all sharing the core high-voltage, safety-certified architecture.

Replacement Considerations

Check for direct substitutes like the MAX25249BATPE/VY+T or MAX25249BATPA/VY+ which share similar electrical characteristics but may differ in packaging or revision. Ensure any replacement maintains ASIL-B certification and compatible pinout compatibility.