Analog Devices MAX20499 Product Info

• High-Efficiency DC-DC Converter
• Up to 12A peak output current:
  • MAX20499A: 8A
  • MAX20499B: 12A
• Differential Remote Voltage Sensing
• 3.0V to 5.5V Operating Supply Voltage
• I²C Controlled Output Voltage: 0.5V to 1.275V in6.25mV Steps
• Excellent Load-Transient Performance
• Programmable Compensation
• 2.2MHz or 1.1MHz Operation
• ±1.5% Output Voltage Accuracy
• Active-Low RESET Output
• Current Mode, Forced-PWM Operation
• Overtemperature and Short-Circuit Protection
• 3.5mm x 3.75mm 17-Pin Side-Wettable FC2QFN
• -40°C to +125°C Grade 1 Automotive TemperatureRange
• AEC-Q100 Qualified

The MAX20499 is a family of high-efficiency, synchronous step-down converters that operate with a 3.0V to 5.5V input voltage range and supply a 0.5V to 1.275V output voltage range. The wide input/output voltage range and the ability to provide up to 12A peak output current make this device family ideal for on-board point-of-load and post-regulation applications. The MAX20499 achieves ±1.5% output error over load, line, and temperature ranges.

The MAX20499 features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response. The 2.2MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The spread-spectrum frequency modulation option minimizes radiated electromagnetic emissions. Integrated low R_DS(ON) switches improve efficiency at heavy loads and make layout simpler than discrete solutions.

The MAX20499 is offered with factory-preset output voltage. See the Ordering Information table for options. The I²C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, along with overcurrent and overtemperature protections.

APPLICATIONS

• Automotive Entertainment Systems
• SoC Core Power