Product description: D30V30F15 - step-down converter - 15 V 2.7 A - Pololu 4897
A small step-down converter from Pololu operating with an input voltage ranging from 15 V to 45 V. Thanks to the use of SMPS technology, this regulator is much more efficient than traditional linear regulators, especially when the difference between the input and output voltage is large. The D30V30F15 offers a constant output voltage of 15 V with an accuracy of 4% and a typical maximum continuous current capacity of 1.5 A to 3.2 A depending on operating conditions. This module includes a range of protection functions such as reverse voltage protection up to 40V, undervoltage lockout, overcurrent protection, short circuit protection and thermal shutdown. Additionally, the soft start function limits the starting current by gradually increasing the output voltage at startup. The regulator also has an integrated "power good" indicator, which informs about the stability of the output voltage . The D30V30F15 has compact dimensions of 17.8 x 20.3 x 9 mm, which makes it easy to integrate into a variety of electronics projects.
D30V30F15 - step-down converter - 15 V 2.7 A - Pololu 4897.
D30V30F15 converter pins.
D30V30F15 converter pins
- VOUT - output voltage 15 V
- GND - system ground
- VIN - input voltage from 15 V to 45 V
- EN - allows you to control the regulator's operation by setting it to low or high
- PG - open-drain "power good" pin. Goes low when the regulator output voltage increases more than 7.5% above or drops more than 9% below the nominal voltage (with hysteresis). If this pin is used, a pull-up resistor must be connected.
Efficiency of the converter system
The efficiency of the D30V30F15 voltage regulator, defined as the ratio of output power to input power , is a key indicator of its effectiveness, especially when battery life or heat generation are important. Typical efficiency is 80% to 95% depending on input voltage, output voltage and load. In energy saving mode at low loads, the switching frequency is reduced, which further increases efficiency at low power consumption.
System efficiency chart.
Drop-out voltage chart for the D30V30F15 system.
Drop-out voltage
The drop-out voltage of the D30V30F15 regulator determines the minimum difference between the input and output voltage necessary to maintain a stable output voltage. In the case of this model, the effective lower limit of the input voltage is limited by the output voltage and the voltage drop across the regulator, which increases with increasing load. For example, if the regulator has a fixed output voltage of 15 V and the drop-out is 1 V, the input voltage must be at least 16 V to ensure a stable 15 V output. The value of the drop-out voltage is therefore a critical parameter, especially in applications with low input voltage or high load, and should be taken into account when designing systems using this regulator.
Technical specifications of the D30V30F15 converter
- Input voltage: 15V to 45V
- Output voltage: 15V (with an accuracy of 4%)
- Maximum output current: 2.7 A
- Continuous output current: 1.5 A to 3.2 A
- System efficiency: 80% to 95%
- Switching frequency: ~700 kHz at high loads
- Power good output
- Protections: against overheating, short circuit, overcurrent, soft start function, undervoltage lock, energy saving function
- Two 0.086'' mounting holes for M2 screws
- Dimensions: 17.8 x 20.3 x 9 mm
- Weight: 3.3 g
Set contents
- D30V30F15 - step-down converter - 15 V 2.7 A - Pololu 4897
- Goldpin connectors for contacts
Elements included in the set.
