Automotive Single 16A/12A Step-Down Converter

The MAX20011C/MAX20011D is a high-efficiency, synchronous step-down converter that operates with a 3.0V to 5.5V input voltage range and supplies a 0.5V to 1.275V output voltage range. The wide input/output voltage range and the ability to provide up to 16A peak output current make this device ideal for on-board point-of-load and post-regulation applications. The MAX20011C/MAX20011D achieves ±1.5% output error over load, line, and temperature ranges.

The MAX20011C/MAX20011D 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 RDS(ON) switches improve efficiency at heavy loads and make layout simpler than discrete solutions.

The MAX20011C/MAX20011D is offered with factory-preset output voltage. The I²C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft start, overcurrent, and overtemperature protections.

Applications

* Automotive ADAS Systems * SoC Core Power

* High-Efficiency DC-DC Converter

* Up to 16A Peak Output Current

* MAX20011C: 16A

* MAX20011D: 12A

* Differential Remote Voltage Sensing

* 3.0V to 5.5V Operating Supply Voltage

* I²C Controlled Output Voltage: 0.5V to 1.275V in 6.25mV Steps

* Excellent Load-Transient Performance

* Programmable Compensation

* 2.2MHz or 1.1MHz Operation

* ±1.5% Output Voltage Accuracy

* RESET Output

* Current-Mode, Forced-PWM Operation

* ASIL D Compliant:

* Redundant Reference

* BIST Diagnostics

* PEC on I²C;

* Programmable OV/UV with ±1% Accuracy

* Overtemperature and Short-Circuit Protection

* 3.5mm x 4mm 17-Pin Side-Wettable FC2QFN

* -40°C to +125°C Grade 1 Automotive Temperature Range