MAX20499
RECOMMENDED FOR NEW DESIGNSAutomotive Single 8A/12A Step-Down Converter Family
High-Efficiency, Synchronous Step-Down 8A/12A Converters with a 3V to 5.5V Input Voltage
- Part Models
- 6
- 1ku List Price
- Starting From $2.11
Overview
- 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.
APPLICATIONS
- Automotive Entertainment Systems
- SoC Core Power
Documentation
Video 2
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX20499AFOB/VY+ | LFCSP | ||
| MAX20499AFOB/VY+T | LFCSP | ||
| MAX20499AFOE/VY+ | LFCSP | ||
| MAX20499AFOE/VY+T | LFCSP | ||
| MAX20499AFOG/VY+ | LFCSP | ||
| MAX20499AFOG/VY+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 7, 2026 - 2026-0095 ASSEMBLY |
||
| MAX20499AFOB/VY+ | PRODUCTION | |
| MAX20499AFOE/VY+ | PRODUCTION | |
| MAX20499AFOE/VY+T | PRODUCTION | |
| MAX20499AFOG/VY+ | PRODUCTION | |
| MAX20499AFOG/VY+T | PRODUCTION | |
|
Jun 27, 2025 - 2426B MECHANICAL DATASHEET |
||
| MAX20499AFOB/VY+ | PRODUCTION | |
| MAX20499AFOE/VY+ | PRODUCTION | |
| MAX20499AFOE/VY+T | PRODUCTION | |
| MAX20499AFOG/VY+ | PRODUCTION | |
| MAX20499AFOG/VY+T | PRODUCTION | |
|
Oct 2, 2026 - 2026-0118 WAFER FAB |
||
| MAX20499AFOB/VY+T | PRODUCTION | |
| MAX20499AFOE/VY+ | PRODUCTION | |
| MAX20499AFOE/VY+T | PRODUCTION | |
| MAX20499AFOG/VY+ | PRODUCTION | |
| MAX20499AFOG/VY+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Evaluation Kits
Evaluation Kit for the MAX20499