MAX25250
RECOMMENDED FOR NEW DESIGNSFour Output Mini PMIC for Camera Applications
Industry's Smallest Power Solution for Automotive Cameras with Precision Monitoring
- Part Models
- 6
- 1ku List Price
- Starting From $2.28
Overview
- Multiple Functions for Small Size
- 1A Synchronous High-Voltage Buck Converter
- Input Voltage Range 5V to 22V
- 3V to 4V, and 5V Output Voltage in 50mV Steps
- Two Synchronous Low-Voltage Buck Converters
- OUT2 and OUT3 Provide up to 1.2A
- 0.8V to 3.9875V in 12.5mV Steps
- LDO for Camera Sensor; 50dB at 1kHz
- 2.2MHz Operation
- Active-Low RESET Output–Open-Drain
- High-Precision
- ±1.5% Output Voltage Accuracy
- OV/UV Monitoring
- 1A Synchronous High-Voltage Buck Converter
- Robust for the Automotive Environment
- Current-Mode, Forced-PWM Operation
- Overtemperature and Short-Circuit Protection
- 3.5mm x 3.5mm 20-Pin TQFN
- -40°C to +125°C Grade 1 Automotive Temperature Range
- AEC-Q100 Qualified
The MAX25250 is a high-efficiency, four-output PMIC that integrates three DC-DC converters and a high-PSRR LDO, with OV/UV monitoring on all outputs. OUT1 is a1A high-voltage synchronous step-down converter operating from power over coax or car battery. OUT2 and OUT3 low-voltage synchronous step-down converters operate from OUT1 and provide a 0.8V to 3.9875V output voltage range. OUT2 can deliver 1.2A for high megapixel cameras and high-speed serializers. OUT3 can deliver 1.2A to power the secondary rails of the imager, serializer,and MCU. OUT4 is a low-voltage, low-noise, high-PSRR LDO for imager power. All buck converters achieve ±1.5% output voltage accuracy over load, line, and temperature range. Overvoltage and undervoltage faults are monitored and errors are communicated through active-low RESET.
This device features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response. The high-frequency operation allows for the use of all ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low-RDS(ON) switches improve efficiency at heavy loads and make layout simpler than discrete solutions.
Sequencing through the use of EN23 and EN4 pins and factory-settable output voltages increases flexibility for different image sensors and configurations. Other features include soft-start, overcurrent, and overtemperature protection. The MAX25250 is specified for operation over the -40°C to +125°C automotive temperature range.
Applications
- Rear-View Cameras
- Surround-View Cameras
Documentation
Video 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX25250ATPA/VY+ | LFCSP | ||
| MAX25250ATPA/VY+T | LFCSP | ||
| MAX25250ATPC/VY+ | LFCSP | ||
| MAX25250ATPC/VY+T | LFCSP | ||
| MAX25250ATPD/VY+ | LFCSP | ||
| MAX25250ATPD/VY+T | LFCSP |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareEvaluation Kits
Evaluation Kit for the MAX25249/MAX25249B/MAX25250
Evaluation Kit for the MAX25249/MAX25249B/MAX25250
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