Product description: S13V25F9 - step-up / step-down converter - 9 V 2.5 A - Pololu 4983
The S13V25F9 step-up / step-down converter from Pololu is an advanced electronic device designed to effectively convert input voltage from 2.8 V to 22 V into an output voltage of 9 V. The device has many built-in protections, e.g. against reverse voltage up to 20 V, and includes an optional EN input, which allows reducing current consumption to below 10 µA per volt . The converter has a small size, which makes it ideal for space-constrained applications.
S13V25F9 - step-up / step-down converter - 9 V 2.5 A - Pololu 4983.
The device processes a wide range of input voltage and sets a constant value of 9 V.
Main features of the converter
- Efficiently converts input voltages from 2.8V to 22V to a stable 9V
- It offers typical efficiency of 85% to 95% depending on input voltage and load
- It allows operation with a maximum continuous output current from 1 A to 3 A
- It is characterized by an quiescent current ranging from 10 mA to 30 mA
- Protects against reverse voltage and overload
- Provides a soft-start function that limits the starting current
- Enables entry into a low power state with an idle current of 2 µA to 10 µA per volt
- It has undervoltage and overvoltage protection at the output
- It is characterized by compact dimensions, ideal for applications with limited space
- It ensures stable operation at a constant switching frequency of approximately 500 kHz
Applications of the converter
The device is intended for applications where voltage stabilization over a wide range is required . It is therefore perfect for battery- powered systems where the voltage may vary during use, for example in robotics projects or solar-powered systems. The small dimensions of the converter also allow it to be used in small portable devices with limited construction space.
The converter is suitable for applications with unstabilized voltage. 
Elements included in the set.
Security available
The converter has several protections, such as reverse voltage protection up to 20 V , preventing damage during incorrect connection, overvoltage and countercurrent protection , protecting against excessive voltage and current, and has a thermal shutdown function , which effectively protects against overheating. This ensures a high level of safety in operation and use of the device.
S13V25F9 converter pins
The controller has two sets of through holes: five smaller holes arranged at 0.1" intervals along the edge of the board (for compatibility with standard breadboards and connectors using a 0.1" spacing between pins) and four larger holes intended for screw terminals with spacing 3.5mm.
- VOUT - output voltage 9 V
- GND - system ground
- VIN - input voltage from 2.8 V to 22 V
- EN - allows you to control the regulator's operation by setting it to low or high
S13V25F9 converter pins.
The product has a number of protective measures.
Technical specifications of the S13V25F9 converter
- Device type: step-up / step-down converter
- Input voltage: 2.8V to 22V
- Output voltage: 9V (with an accuracy of 4%)
- Typical maximum continuous output current: 2.5 A
- Maximum continuous output current range: 1 A to 3 A, depending on input voltage, temperature and other factors
- Maximum output current: 5.1 A
- Quiescent current range: 10 mA to 30 mA (2 µA to 10 µA if the device is turned off)
- Switching frequency: approx. 500 kHz
- System efficiency: 85% to 95%
- Protections: against reverse voltage up to 20V, overload, overvoltage, undervoltage and overheating
- Dimensions: 22.9 x 22.9 x 9.7 mm
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