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Product description: Buck-Boost - step-up/step-down converter 2,5 V - 9 V - SparkFun COM-15208
The Buck-Boost converter manufactured by SparkFun is a voltage regulator of the type step-up/step-down. The board allows you to precisely convert an input voltage between 3 V and 16 V to an output value between 2.5 V and 9 V. Typical output voltages of 3.3 V and 5 V can be set using the switch on the bottom of the board. The SparkFun converter uses the TPS63070 Buck-Boost converter, which takes the input power and adjusts the output voltage up or down to the set output voltage. The manufacturer has also used a custom setting here that allows you to solder a resistor if you need custom voltage values.
In addition to voltage control, the SparkFun Buck-Boost uses a DC/DC converter, which is more efficient than a linear regulator. More efficiency means less energy wasted as heat. With built-in overheat protection and an optional heat sink, the inverter can achieve up to 95% efficiency.
Buck-Boost - 2.5V - 9V step-up/step-down converter - SparkFun COM-15208.
Pinout descriptions on the back side of the board.
Technical specification of SparkFun COM-15208 inverter
- Input voltage range: from 3 V to 16 V
- Adjustable output voltage range: from 2.5 V to 9 V
- Three output voltages to choose:
- 3,3 V
- 5 V
- Custom
- GPIO breakout for additional control
- Die operating temperature range: -40°C to 125°C
- Optional heat sink
- Up to 95% efficiency
- Overheat protection
Pin-out table
| Pinout | Description |
|---|---|
| VIN | The supply voltage for the power stage. Can be used to pass power to the rest of the design, or used to set the logic level. |
| EN | Turn on the input. Pull up to turn the device on. Pull down to turn the device off. Default: HIGH through a 10 kΩ pull-up resistor to VIN. |
| GND | Ground. Can be used to set I/O pins to low state. |
| PS | Power Save. Pull down for forced PWM. Pull up for power save mode. In power save mode, the switching frequency adjusts to the most efficient frequency. You can also use a clock signal to synchronize to an external frequency. Default: HIGH through a 10 kΩ pull-up resistor to VIN. |
| PG | Power Good type output with open drain. |
| VOUT | Additional buck-boost converter output. |
