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The MAX20419ATGB/V is a high-efficiency, 3-output, low-voltage DC-DC converter IC. Output 1 boosts the input power supply to 5V at up to 750mA, while two synchronous buck converters operate over a 3.0V to 5.5V input voltage range and provide a 0.8V to 3.8V output voltage range at up to 3.5mA at up to 3.6 A. The output voltage range is ±1.9%. The boost converter has an output voltage range of ±1.9% and the buck converter has an output voltage range of ±1.4%. The boost converter output error is ±1.9% and the buck converter output error is ±1.4% over the load, line, and temperature ranges. The integrated circuits use a 2.2MHz fixed-frequency pulse-width modulation (PWM) mode for better noise immunity and load transient response and a pulse-frequency modulation mode (frequency hopping) for improved efficiency in light-load operation. Improved efficiency at light load operation. 2.2MHz frequency operation allows the use of full ceramic capacitors and minimises external components. Programmable Spread Spectrum Programmable Spread Spectrum Frequency Modulation minimises radiated electromagnetic emissions. Electromagnetic emissions. The integrated low RDS(ON) switch improves efficiency at heavy loads and allows for a more compact layout.

Product Attributes

Function: Boost, Buck, Boost/Buck

Output Configuration: Positive

Topology: Buck, Boost

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-CU (4.1x4.1)

Applications

• ADAS

• Infotainment

• SOC Power

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