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The RAA211820GNP#HA0 is a DC/DC synchronous step-down (buck) regulator. The RAA211820GNP#HA0 is a DC/DC synchronous step-down (buck) regulator that supports a 4.5V to 75V input voltage range and adjustable output voltage. It can deliver up to 2A continuous output current with excellent load and line regulation. Peak current mode control architecture. Its PWM switching frequency is programmable, providing an optimal balance between transient response and efficiency. It also supports PFM operation and DEM to maximise light load efficiency. An externally biased LDO input is provided to further reduce power dissipation at the load. It also supports PFM operation and DEM to maximise light load efficiency.

Product Attributes

Function: Buck

Output Configuration: Positive

Topology: Buck

Output Type: Adjustable

Number of Outputs: 1

Voltage - Input (Min): 4.5V

Voltage - Input (Max): 75V

Voltage - Output (Min/Fixed): 0.8V

Voltage - Output (Max): 67.5V

Current - Output: 2A

Frequency - Switching: 400kHz, 200kHz ~ 800kHz

Synchronous Rectifier: Yes

Operating Temperature: -40°C ~ 125°C (TJ)

Mounting Type: Surface Mount

Package/Housing: 20-PowerVFQFN

Supplier Device Package: 20-QFN (3.5x4)

APPLICATIONS

● Industrial power systems

● Distributed power and general purpose

● Point-of-load

● Telecom base station power supplies

● High voltage single board systems

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