MAX20402
Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters
High-Efficiency, Low-EMI, Synchronous Buck Converter for Automotive Off-Battery Applications
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Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
| Data Sheet | Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters | Jul 27, 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 SampleSupport@analog.com with any questions regarding this Sample Site.
Key Features
- Multiple Functions for Small Size
- Operating Input Voltage Range: 3V to 36V
- Synchronous DC-DC Converter with Integrated FETs up to 2.5A/3.5A
- 10μA Quiescent Current in Skip Mode
- 3MHz/2.1MHz/400kHz Switching Frequency
- Spread-Spectrum Option
- Fixed 2.5ms Internal Soft-Start
- Programmable 0.8V to 12V Output Voltage Range or Fixed 5V/3.3V Options Available
- 99% Duty Cycle Operation with Low Dropout
- High Precision for Safety Critical Applications
- ±1.5% Output Voltage Accuracy in FPWM
- Precision Enable Thresholds for Fully Programmable UVLO Thresholds
- Accurate Windowed PGOOD
- Robust for the Automotive Environment
- Average Current Mode, Forced-PWM, and Skip Operation
- Overtemperature, Overvoltage, and Short-Circuit Protection
- 3mm x 3mm FC2QFN
- -40°C to +125°C Operating Temperature Range
- 42V Load-Dump Tolerant
- AEC-Q100 Qualified
Applications/Uses
- Automotive Applications
- ADAS Systems
- Radar Modules
- Infotainment
- Industrial Applications
- High-Voltage DC-DC Converters
Description
The MAX20402/MAX20403 offer externally programmable or internally fixed output voltages of 5V and 3.3V. Fixed internal frequency options of 3MHz/2.1MHz/400kHz are available, which allow for small external components and reduced output ripple, and also guarantee no AM interference.
When SYNC is low, the MAX20402/MAX20403 automatically enter skip mode at light loads with an ultra-low quiescent current of 10μA at no load. A pin-selectable forced-PWM mode is also available, which helps improve EMI performance. The devices have a spread-spectrum frequency modulation option designed to minimize EMI-radiated emissions due to the modulation frequency.
The MAX20402/MAX20403 are available in a small, 3mm x 3mm FC2QFN package and use very few external components.
Technical Docs
| Data Sheet | Automotive 36V, 2.5A/3.5A, Fully Integrated Synchronous Buck Converters | Jul 27, 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 SampleSupport@analog.com with any questions regarding this Sample Site.
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