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The MAX20419ATGC/V is a high-efficiency, 3-output, low-voltage DC-DC converter IC. OUT1 boosts the input supply to 5V at up to 750mA, while the two synchronous buck converters, with 3.0V to 5.5V input operating voltages, provide 0.8V to 3.8V output voltages at up to 3.6A. The boost converter and buck converter have output errors of ±1.9% and ±1.4% over load, line and temperature ranges, respectively. The ICs feature a 2.2MHz fixed-frequency pulse-width modulation (PWM) mode, which provides improved immunity and load transient response performance, and a pulse-frequency modulation mode (hopping), which improves efficiency under light-load conditions. Because of the 2.2MHz operating frequency, all types of ceramic capacitors can be used and very few external components are required. Programmable spread-spectrum modulation fully reduces electromagnetic emissions. An integrated low RDS(ON) switch improves efficiency at heavy loads and simplifies its layout to make it simpler than discrete solutions.

The IC provides factory preset output voltages. Other features include soft-start, over-current, and over-temperature protection.The MAX20419 also features a variety of redundancy and diagnostic functions to support ASIL-rated applications.

Product Attributes

Function: Boost, Buck, Boost/Buck  

Output Configuration: Positive  

Topology: Boost, Buck  

Output Type: Adjustable  

Number of Outputs: 3  

Voltage - Input (Min): 3V  

Voltage - Input (Max): 5.5V  

Voltage - Output (Min/Fixed): 0.8V  

Voltage - Output (Max): 3.8V  

Current - Output: 3.6A  

Frequency - Switch: 2.2MHz  

Synchronous Rectifier: Yes  

Operating Temperature: -40°C ~ 125°C  

Mounting Type: Surface Mount  

Package/Shell: 24-WFQFN Exposed Pad  

Supplier Device Package: 24-TQFN (4x4)  

Base Product Number: MAX20419

Applications

ADAS

Infotainment Systems

SOC Power Supplies

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