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The Texas Instruments PT5801C is a high-performance Non-Isolated Point-of-Load (PoL) DC/DC converter module from the PT5800 series. It delivers a regulated 3.3V output from a 4.5V to 5.5V input bus, capable of supplying up to 18A of continuous current. The module achieves a typical efficiency of 94%, reducing thermal dissipation in space-constrained designs.
This integrated switching regulator includes output overcurrent protection (OCP) and overtemperature protection (OTP) for reliable operation. The set-point voltage tolerance is ±2% of nominal, with a temperature coefficient of ±0.5% over the -40°C to +85°C operating temperature range. The differential remote sense feature ensures accurate voltage regulation at the load point.
The PT5801C is housed in an 18-SMD surface mount package measuring 50.8mm x 30.2mm x 7.9mm. It is designed for commercial ITE (Information Technology Equipment) applications, making it suitable for powering DSPs, microprocessors, and other digital loads.
The PT5801C provides a fixed nominal output voltage of 3.3V.
The input voltage range is 4.5V to 5.5V.
The PT5801C can deliver up to 18A continuous output current.
The operating temperature range is -40°C to +85°C.
The PT5801C includes overcurrent protection (OCP) and overtemperature protection (OTP).