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
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
| VIN (V) (min) | 3 |
| VIN (V) (max) | 5.5 |
| VOUT1 (V) (min) | 0.5 |
| VOUT1 (V) (max) | 1.275 |
| IOUT1 (A) (max) | 12 |
| Preset VOUT (V) | 0.5-1.275 |
| # DC-DC Outputs | 1 |
| Design Tools | EE-Sim |
| Package/Pins | FC2QFN/17 |
| Budgetary Price (See Notes) | 1.89 |
Simplified Block Diagram
Technical Docs
| Data Sheet | Automotive Single 8A/12A Step-Down Converter Family | Oct 10, 2022 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.
Parameters
| VIN (V) (min) | 3 |
| VIN (V) (max) | 5.5 |
| VOUT1 (V) (min) | 0.5 |
| VOUT1 (V) (max) | 1.275 |
| IOUT1 (A) (max) | 12 |
| Preset VOUT (V) | 0.5-1.275 |
| # DC-DC Outputs | 1 |
| Design Tools | generateDesignEESIMUrl('https://maxim.transim.com/pwm2/designreq/Index?partId=21575', '') |
| Package/Pins | FC2QFN/17 |
| Budgetary Price (See Notes) | 1.89 |
Key Features
- 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
Applications/Uses
- Automotive Entertainment Systems
- SoC Core Power
Description
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.
Technical Docs
| Data Sheet | Automotive Single 8A/12A Step-Down Converter Family | Oct 10, 2022 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.
Request a Quote