MAX20011 Automotive Single 8A/12A Step-Down


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Maxim Integrated
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Create a design and simulate using EE-Sim® tools: The MAX20011 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 MAX20011 achieves ±1.5% output error over load, line, and temperature ranges. The MAX20011 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 MAX20011 is offered with factory-preset output voltage. See the Selector Guide for options. The I2C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, overcurrent, and overtemperature protections.

* High-Efficiency DC-DC Converter * Up to 12A peak output current: * MAX20011A: 8A * MAX20011B: 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 * Active-Low 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 3.75mm 17-Pin Side-Wettable FC2QFN * -40°C to +125°C Grade 1 Automotive Temperature Range

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