MAX25249ATPD/VY+

Overview

The MAX25249ATPD/VY+ is a high-voltage, ASIL-B certified camera power management IC (PMIC) manufactured by Analog Devices Inc. under the Maxim Integrated brand. It integrates four output regulators within a compact 20-WETQFN package. The device features three synchronous buck converters and one low-dropout linear regulator (LDO). It operates with an input voltage range of 4.5 V to 36 V. The switching frequency for the DC-DC converters is fixed at 2.2 MHz. Output capabilities include up to 1 A for the first channel and 1.2 A for subsequent channels, with adjustable voltage ranges from 800 mV to approximately 4 V.

Feature Summary

• Automotive safety integrity level B (ASIL-B) certification for functional safety compliance in camera applications.
• Integrated multi-channel topology combining synchronous buck converters and a linear regulator for efficient power delivery.
• High-voltage input capability supporting direct connection to vehicle battery systems without intermediate pre-regulation.
• Compact surface-mount packaging designed for space-constrained automotive electronic control units.

Applications

• Automotive camera sensor power supply modules
• Advanced driver assistance system (ADAS) imaging subsystems
• Vehicle infotainment camera interfaces
• Autonomous driving perception hardware

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and thermal pad configuration. Confirm ASIL-B qualification status through authorized distributors. Check for obsolescence or limited availability as automotive components often have restricted lifecycles. Ensure ESD protection measures are implemented during handling due to the sensitive nature of integrated circuits.

Selection Notes

Select this component when designing automotive vision systems requiring ISO 26262 compliance. Compare output current requirements against the specified 1 A and 1.2 A limits per channel. Evaluate thermal performance within the 20-WETQFN package for the intended operating temperature range of -40°C to 125°C. Consider the fixed 2.2 MHz switching frequency regarding electromagnetic interference constraints in the vehicle environment.

Part Context

This part belongs to the MAX25249 family of specialized PMICs designed for automotive imaging. It complements other Maxim Integrated solutions like the MAX25201 boost controller for powering flash LEDs or sensors requiring higher voltages. The family addresses the power distribution needs of modern automotive cameras, integrating regulation and safety features into a single small footprint.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing board layouts if considering alternative PMICs from the same manufacturer or competitors.