Product description: D45V5F5 - step-down converter - 5V 0.5A - Pololu 5433
The D45V5F5 is a module from Pololu 's series of miniature voltage regulators , based on a synchronized step-down converter . It allows for a 5V output voltage from an input ranging from 5.2V to 65V . The maximum continuous output current depends on the input voltage and thermal conditions—typically 500mA , with a maximum of 700mA . The module features high efficiency, low self-consumption (<0.2mA), and built-in overheating and short-circuit protection. Its miniature size makes it ideal for use in tight design spaces.
D45V5F5 - step-down converter - 5V 0.5A - Pololu 5433.
The D45V5F5 is one of the modules from a series of miniature voltage regulators from Pololu, based on a synchronized step-down converter.
Special features
- 5V output voltage with ±4% accuracy - the module provides a stable 5V voltage, which makes it an ideal solution for systems requiring precise power supply, such as microcontrollers, sensors or communication modules
- Maximum output current up to 700 mA (typical 500 mA) - although the manufacturer declares a typical current output of 500 mA, the controller can handle values up to 700 mA under appropriate conditions (cooling). This allows it to power more demanding loads without the risk of overload.
- Wide input voltage range: from 5.2 V to 65 V - the regulator can operate with high input voltages, making it a universal choice for industrial applications, battery power supplies or solar installations
- 1.1 MHz switching frequency - high operating frequency ensures smaller passive components and fast system response. Under low load conditions, the controller automatically reduces frequency, increasing energy efficiency.
- Built-in protection against short circuit and overheating - the module is equipped with mechanisms that protect both the regulator itself and the connected devices against the effects of overloads, short circuits or excessive temperature rise
Converter pins
- VOUT - output voltage 5 V
- GND - system ground (common for VIN and VOUT)
- VIN - input voltage from 5.2 5V to 65 V
D45V5F5 step-down converter pinout.
The maximum continuous output current depends on the input voltage and thermal conditions.
Technical specifications of the step-down converter
- Input voltage: 5.2 V to 65 V
- Output voltage: 5V ± 4%
- Output current (typical): 500 mA
- Output current (max): 700 mA
- Efficiency: up to 90% (depending on conditions)
- Own current consumption: < 0.2 mA
- Switching frequency: 1.1 MHz
- Protection: against overheating, short circuit
- Dimensions: 7.6 x 11.4 x 2.8 mm
- Weight: 0.4 g
