MAX20428ATIA/VY+
ActiveEIGHT-OUTPUT MINI PMIC FOR ADAS APPLICATIONS
MAX20428ATIA/VY+
ActiveEIGHT-OUTPUT MINI PMIC FOR ADAS APPLICATIONS
Description
General part information
MAX20428 Series
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.ApplicationsAdvanced Driver-Assistance Systems
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX20428ATIA/VY+ |
|---|---|
| Current - Output 1 | 3 A |
| Current - Output 2 | 1 A |
| Current (Output 3) | 1 A |
| Frequency - Switching | 2.1 MHz |
| Grade | Automotive |
| Mounting Type | Wettable Flank, Surface Mount |
| Number of Outputs | 7 |
| Operating Temperature (Max) | 125 °C |
| Operating Temperature (Min) | -40 °C |
| Package / Case | 28-WFQFN Exposed Pad |
| Package Length | 5 mm |
| Package Name | 28-TQFN-EP |
| Package Width | 5 mm |
| Qualification | AEC-Q100 |
| Topology | Linear (LDO) (3), Step-Down (Buck) (3), Step-Up (Boost) (1) |
| Voltage - Output 1 (Max) | 3.9875 V |
| Voltage - Output 1 (Min) | 800 mV |
| Voltage - Output 2 (Maximum) | 3.9875 V |
| Voltage - Output 2 (Minimum) | 0.8 V |
| Voltage - Supply (Maximum) | 4.2 V |
| Voltage - Supply (Minimum) | 3 V |
| Voltage (Output 3) (Max) | 3.9875 V |
| Voltage (Output 3) (Min) | 0.8 V |
| w/LED Driver | No |
| w/Sequencer | No |
| w/Supervisor | No |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Sign in to see pricing
Create a free account to access distributor pricing data.
CAD
3D models and CAD resources for this part
Documents
Technical documentation and resources