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Description
Pololu 5V Step-up Voltage Regulator U3V50F5
Efficiently converts 2.9 V to stable 5 V output
Features reverse-voltage and over-current protection
Reduces quiescent current with ENABLE pin
Includes mounting holes for secure installation
Compact design with flexible connection options
The Pololu 5V Step-up Voltage Regulator U3V50F5 is a robust boost regulator designed to efficiently convert input voltages as low as 2.9 V to a stable 5 V output. This device is a type of switching regulator, also known as a switched-mode power supply or DC-to-DC converter, and it boasts a typical efficiency range of 80% to 95%. The regulator can handle input currents up to 5 A, making it suitable for applications requiring significant power conversion.
This regulator features integrated protections, including reverse-voltage protection, over-current protection, thermal shutdown, and an under-voltage lockout that activates when the input voltage falls below 2.5 V. The ENABLE pin allows the device to enter a low-power state, reducing quiescent current to approximately 20 µA per volt on VIN. The board is compact, with dimensions of 1.9″ × 0.6″ × 0.41″, and includes two mounting holes for secure installation.
Electrical connections can be made through smaller holes compatible with 0.1″ header pins or larger holes for terminal blocks, providing flexibility in prototyping and installation. The board's design includes a thick PCB, which may affect the protrusion of terminal block and header pins compared to standard PCBs. The regulator is enabled by default, and the ENABLE pin can be driven low to reduce power consumption.
Note: During normal operation, this product can become hot enough to cause burns. Handle with care.
1x Pololu 5V Step-up Voltage Regulator U3V50F5
Optional terminal blocks
Header pins
48 x 15 x 10.5 mm (1.9 x 0.6 x 0.41")
Input voltage range: 2.9 V to VOUT
Fixed 5 V output with 4% accuracy
5 A switch supports input currents up to 5 A
Integrated reverse-voltage protection
Includes over-current protection
Features over-temperature shutoff
Equipped with under-voltage lockout
Typical efficiency ranges from 80% to 95%
Two mounting holes for #2 or M2 screws
Options for connection include smaller holes for 0.1″ header pins and larger holes for terminal blocks
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