MAX20499
Automotive Single 8A/12A Step-Down Converter Family
High-Efficiency, Synchronous Step-Down 8A/12A Converters with a 3V to 5.5V Input Voltage
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Overview
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
Product Details
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.
APPLICATIONS
- Automotive Entertainment Systems
- SoC Core Power
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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.
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EE-Sim Power® Tools
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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.