Features and Benefits
- Multiple Functions for Small Size
- Synchronous 750mA Boost Converter
- Fixed from 3.8V to 8.5V in 100mV Steps
- Synchronous Buck Converter Up to 3A
- Factory-Configurable Output Voltage from 0.8V to 3.8V in 25mV Steps
- 3.0V to 5.5V Operating Supply Voltage
- 2.2MHz Operation
- 93% ±3% Undervoltage Threshold
- 107% ±3% Overvoltage Threshold
- Individual EN_ Inputs and Active-Low RESET_ Outputs
- Synchronous 750mA Boost Converter
- ±2% Output-Voltage Accuracy (OUT1) and ±1.5% Output-Voltage Accuracy (OUT2)
- Good Load-Transient Performance
- Robust for the Automotive Environment
- Current Mode, Forced-PWM and Skip Operation
- Overtemperature and Short-Circuit Protection
- 4mm × 4mm 24-Pin TQFN
- -40°C to +125°C Automotive Temperature Range
The MAX20414 is a high-efficiency, two-output, low-voltage DC-DC converter. OUT1 boosts the input supply up to 8.5V at up to 750mA, while a synchronous step-down converter (OUT2) operates from a 3.0V to 5.5V input voltage range and provides a 0.8V to 3.8V output voltage range at up to 3A. The boost converter achieves ±2% and the buck converter achieves ±1.5% output error over load, line, and temperature range.
The IC features a 2.2MHz fixed-frequency pulse-width modulation (PWM) mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for the use of all-ceramic capacitors and minimizes external components footprint. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and make the layout a much simpler task with respect to discrete solutions.
The IC is offered with either a factory-preset or resistor-adjustable output voltage on the step-down converter. The boost converter output voltage is factory-preset. Other features include soft-start, overcurrent, and over-temperature protections. This high-efficiency two-output low-voltage DC-DC converter is available in a lead(Pb)-free, 24-pin TQFN package (see the Ordering Information table for options).
- SOC Power
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The MAX20414 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the MAX20414 power-management IC (PMIC). The EV kits include two high-efficiency, low-voltage DC-DC converters. OUT1 boosts a 3.3V input to 5V at up to 500mA, while the OUT2 step-down converter provides adjustable output voltages down to 0.8V at up to 3A. The 2.2MHz switching-frequency operation allows for the use of all-ceramic capacitors and minimizes external components.
The EV kit features two on/off jumper controls and two reset outputs (active-low RESET1, active-low RESET2) to indicate output status for each converter. It also provides a SYNC input to select the operating mode (forced-PWM, skip, or external frequency synchronization).
- SOC Power
Features & Benefits
- 3V to 5.5V Operating Supply Voltage
- 5V at 500mA Synchronous Boost Converter (OUT1)
- 1.25V at 3A Synchronous Buck Converter (OUT2)
- SYNC Mode Select Input for Forced-PWM (FPWM), Skip Mode Selection, or External Frequency Synchronization
- Individual Active-Low RESET_ Outputs
- Minimized External Components
- Proven PCB Layout
- Fully Assembled and Tested
Documentation & Resources
Tools & Simulations
EE-Sim® Power Tools
The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.
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 Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|MAX20414ATGA/V+||Material Declaration||Reliability Data||Thin Quad Flatpack, No Leads|
|MAX20414ATGA/V+T||Material Declaration||Reliability Data||Thin Quad Flatpack, No Leads|
|Wafer Fabrication Data|
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.