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Analog Devices Inc. MAX20012B Automotive Step-Down Controller operates with a 3.0V to 5.5V input voltage range and provides a 0.5V to 1.5875V output voltage range. This dual-channel controller enables up to 12A of load current per phase. Channel one has the option to operate with two phases to deliver higher load current, making this device ideal for automotive Point-of-Load (PoL) and post-regulation applications.
The MAX20012B achieves ±2% output error over load, line, and temperature ranges. The IC features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions.
The MAX20012B is offered with factory-preset output voltages (see the Selector Guide for options). The I2C interface supports dynamic voltage adjustment with programmable slew rates for each channel. Other features include programmable soft-start and overcurrent and overtemperature protection.
The MAX20012B Step-Down Controller is offered in a 32-pin Thin Quad Flat No Leads (TQFN) package with an exposed pad and is AEC-Q100 qualified for automotive applications.
