MAX20428
RECOMMENDED FOR NEW DESIGNSEight-Output Mini PMIC for ADAS Applications
- Part Models
- 6
- 1ku List Price
- price unavailable
Overview
- Multiple Functions for Small Size
- Synchronous 5V, 500mA Boost Converter
- Dual 1A Synchronous Buck Converters
- 0.8V to 3.9875V in 12.5mV Steps
- 1.3A Peak Output Capability
- Single 3A Synchronous Buck Converter
- 0.8V to 3.9875V in 12.5mV Steps
- 3.5A Peak Output Capability
- Three 300mA Low-Dropout Linear Regulators
- One 25mΩ Load Switch
- Programmable Challenge/Response Watchdog
- I2C Fast-mode Plus Compatible Interface with Packet-Error Checking (PEC) Option
- 2.1MHz Internal Operation with Spread-Spectrum Option
- High-Precision Performance
- ±1.5% Output Voltage Accuracy
- ±1% OV/UV Monitoring
- Excellent Load-Transient Performance
- Diagnostics and Redundant Circuits
- ASIL C Compliant
- Redundant Reference
- Fail-Safe on Open Pins
- Shorted Pin Detection on RESET
- PV Supply OV/UV Monitor
- Robust for the Automotive Environment
- Current-Mode, Forced-PWM Operation
- Overtemperature and Short-Circuit Protection
- 5mm x 5mm, 28-Pin, Side-Wettable TQFN
- -40°C to +125°C Grade 1 Automotive Temperature Range
The MAX20428 is a high-efficiency, eight-output, low-voltage PMIC. OUT1 boosts the input supply to 5V at up to 500mA, while three synchronous step-down converters operate from an input voltage range of 3.0V to 4.2V and provide an output voltage range of 0.8V to 3.9875V at up to 1.3A peak, 1.3A peak, and 3.5A peak, respectively. Three 300mA pMOS LDOs operate from an input voltage range of 2.7V to 5.5V and provide an output voltage of 0.8V to 3.9875V. A 25mΩ load switch with soft-start is also included. All regulated outputs achieve ±1.5% DC accuracy over load, line, and temperature range.
The device features a 2.1MHz fixed-frequency PWM mode for better noise immunity and load-transient response. The 2.1MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and simplify the layout with respect to discrete solutions.
The device is offered with factory-preset output voltages. See the Ordering Information table for options. Other features include soft-start, overcurrent, and overtemperature protections.
Applications
- Advanced Driver-Assistance Systems
Documentation
Data Sheet 1
Request an NDA
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).
Request an NDAADI 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 |
|---|---|---|---|
| MAX20428ATIA/VY+ | LFCSP | ||
| MAX20428ATIA/VY+T | LFCSP | ||
| MAX20428ATIC/VY+ | LFCSP | ||
| MAX20428ATIC/VY+T | LFCSP | ||
| MAX20428ATIE/VY+ | LFCSP | ||
| MAX20428ATIE/VY+T | LFCSP |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
Software Development 1
Evaluation Kits
Evaluation Kit for MAX20428
Resources
Evaluation Kit for MAX20428