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MAXIM MAX25249ATPW/VY+ product image
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MAXIM MAX25249ATPW/VY+

Manufacturer
MAXIM
MPN
MAX25249ATPW/VY+
LCSC Part #
C20265535
Packaging
WETQFN-20(3.5x3.5)
Customer #
Key Attributes
WETQFN-20(3.5x3.5) Voltage Regulators - Linear + Switching RoHS
DatasheetMAXIM MAX25249ATPW/VY+
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QtyUnit Price(Reference Only)Total Amount
1+$ 8.0408$ 8.04
200+$ 3.2093$ 641.86
490+$ 3.1015$ 1519.74
980+$ 3.0483$ 2987.33
Standard Packaging490/Full Tray
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear + Switching
ManufacturerMAXIM
PackagingWETQFN-20(3.5x3.5)
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Introduction

AI Translation

The MAX25249/MAX25249B are high-efficiency, four-output PMICs that integrate three DC-DC converters and a high-PSRR LDO, with OV/UV monitoring on all outputs. OUT1 is a 1A 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 with ±1.3% accuracy around the set voltage, and errors are communicated through RESET. The devices feature 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 protections. The MAX25249/MAX25249B are compliant with ASIL B ratings and are specified for operation over the -40°C to +125°C automotive temperature range.

Features

AI Translation
  • Multiple Functions for Small Size
  • 1A Synchronous High-Voltage Buck Converter - Input Voltage Range 5V to 36V 3V to 4V in 50mV Steps - 5V Fixed Output Voltage
  • 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
  • RESET Output – Push-Pull or Open-Drain
  • High Precision
  • ±1.5% Output Voltage Accuracy
  • ±1.3% OV/UV Monitoring Accuracy
  • Diagnostics and Features
  • ASIL B Compliant
  • Redundant Reference
  • Robust for the Automotive Environment
  • Current-Mode, Forced-PWM Operation Overtemperature and Short-Circuit Protection
  • 3.5mm×3.5mm, 20-Pin TQFN
  • -40°C to +125°C Grade 1 Automotive Temperature Range
  • AEC-Q100 Qualified

Applications

AI Translation
  • Surround-View Cameras
  • Rear-View Cameras