Features and Benefits
- 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 RDS(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.
- Automotive Entertainment Systems
- SoC Core Power
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The MAX20499A EV Kit is a fully assembled and tested PCB that allows designers to explore the capabilities of the MAX20499A and the MAX20499B step-down (buck) voltage regulators in an evaluation environment. The MAX20499A has an output current rating of 8A; the MAX20499B has an output current rating of 12A. Both devices operate at 3.0V to 5.5V input supply voltage and can regulate across a voltage range from 0.5V to 1.275V.
The devices feature a 2.2MHz fixed-frequency PWM mode for better noise immunity and load transient response. The 2.2MHz frequency operation accommodates all ceramic capacitors and minimizes the need for external components. The programmable spreadspectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and simplify layout.
The I2C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft-start, over-current protection, and over-temperature protection.
The MAX20499A EV Kit comes pre-tested and ready for immediate use.
- Automotive Entertainment Systems
- SoC Core Power
Features & Benefits
- Full Silicon Integration Allows for Improved Efficiency and Minimized Space
- Input Voltage Range From 3.0V to 5.5V
- Output Voltages Range From 0.5V to 1.275V
- I2C Controlled Output Voltage (6.25mV Steps)
- Excellent Load Transient Response
- Internally Programmable Compensation
- High Switching Frequency of 2.2MHz
- Forced PWM Mode
- Enable and Reset Connections Available
- Loop Measurement Ready
- Proven PCB Layout
- Fully Assembled and Tested
Documentation & Resources
Tools & Simulations
EE-Sim Power® Tools
The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
Sample & Buy
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Buy Now Pricing
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(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.