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Product Detailed Parameters
- Description：ASIL B MINI PMIC FOR CAMERA SENS
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tray
- Topology：Step-Down (Buck) Synchronous (3), Linear (LDO) (1)
- Number of Outputs：4
- Frequency - Switching：2.2MHz
- Voltage/Current - Output 1：3V ~ 4V, 5V, 1A
- Voltage/Current - Output 2：0.8V ~ 3.9875V, 1.2A
- Voltage/Current - Output 3：0.8V ~ 3.9875V, 1.2A
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：Yes
- Voltage - Supply：5V ~ 36V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-WETQFN (3.5x3.5)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MAX25249ATPG/VY+ is an ASIL-B certified camera PMIC featuring three synchronous buck converters and one LDO. It operates with a 4.5V to 36V input range. Output 1 provides 3V to 4V at 1A. Outputs 2 and 3 deliver 0.8V to 3.9875V at 1.2A each. The switching frequency is 2.2MHz. It uses a 20-WETQFN (3.5x3.5) package. Operating temperature spans -40°C to 125°C. It includes overvoltage and undervoltage monitoring for all outputs.
Feature Summary
- ASIL-B functional safety certification for automotive camera applications
- Integrated high PSRR LDO alongside synchronous buck regulators
- Comprehensive output voltage and current monitoring capabilities
Applications
- Automotive camera sensor power supply
- ADAS vision systems
- High-voltage automotive electronics
Procurement Notes
Verify the specific suffix 'PG' against official Analog Devices documentation to confirm pinout and electrical characteristics, as variations exist within the family. Ensure the component meets AEC-Q100 Grade 1 requirements for your specific environmental conditions. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.
Selection Notes
Select this part when ASIL-B compliance is mandatory for camera power stages. It suits designs requiring a wide input voltage range up to 36V. The integrated topology reduces board space compared to discrete solutions. Consider the 2.2MHz frequency for inductor size optimization. Verify thermal performance within the 20-WETQFN package for your specific load conditions.
Part Context
This component belongs to the MAX25249 family of mini PMICs designed specifically for automotive imaging sensors. It consolidates multiple power rails into a single small footprint. The family shares common architectural features but varies in input ranges and output configurations. This specific variant targets high-voltage inputs with precise low-noise regulation needs.
Replacement Considerations
MAX25249ATPC/VY+ offers similar functionality but differs in Input Voltage Range (4.5V-36V vs 5V-36V for some variants) and Output 1 specifications. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.
