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Step-Up Voltage Regulator U3V70F12 - 12V 10A - Pololu 2895
Step-up converter with 12 V output voltage. Maximum current up to 10 A. Supply voltage from 2.9 V to 12 V.
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DescriptionProduct: step-up converter U3V7012 - 12 V 10 A
A controller that increasesthe voltage from 2.9 to 12 V to a constantvalue of 12 V.The system is able to process a maximum input current of10 A, a typical input current brings8 A for a few seconds, after which thethermal protectionmode is activated. It is recommended to useup to 6 A, the inverter can then runfor many minutes. The output current is a function of the input voltage, output voltage and efficiency of the inverter. Details can be found in the diagrams below.
The U3V70x family offers one version of the inverter with adjustable output voltage: U3V70A (4.5 - 20 V).Versions with fixed voltage are also available:5 V,6 V,7.5 V,9 V, 12 Vand 15 V.All versions of the U3V70x are similar to each other, for ease of identification there is a blank space on the back where you can place your own marker.
Botland is an official distributor of Pololu electronics and robotics parts. Countless robots hold at least one component of this brand in their build. Our team guarantees that all Pololu products presented here are original.
Connecting the U3V7012 inverter
The module has four outputs:
- <strong>VIN</strong>: - input voltage, must not exceed the output voltage.
- <strong>GND</strong>: - ground potential.
- <strong>VOUT</strong>: - output voltage. In case of adjustable version it is selected by means of a potentiometer.
- <strong>ENABLE</strong>: - switches the system into low power consumption state. By default, the pin is pulled up to the VIN supply voltage via a 100 kΩ resistor. This means that if the output is left unconnected, the inverter is switched on by default. In order to put the circuit into standby mode, the low state (below 0.4 V) must be given. In this situation, the module only consumes current flowing through the 100 kΩ resistor, which is 10 µA depending on the input voltage being connected.
The connectors are properly signed on the board. The output roaster is 5 mm for ARK connectors and 2.54 mm for connectorsgoldpinwhich allow the module to be mounted incontact plateorconnectionby means ofcables.
Soldering connectors are included. You can choose popular goldpins or ARK high-current terminals. Thanks to the thicker PCB layer the terminals do not stick out of the circuit.
Figure 1: System efficiency at 12V output voltage.
Output current and efficiency of the circuitstep-up U3V7012
The efficiency of the inverter depends on the input voltage and the selected output voltage. On average, it ranges from 80 % to 95 %. The output current is a function of the input voltage, output voltage and inverter efficiency. It is usually the value around the input current.
To sum up, the maximum output current is proportional to the ratio between input voltage and output voltage. Additionally, its value may depend on external factors, e.g. temperature or air flow or the heatsink used.
Specification of step-up converter U3V7012
- Input voltage: 2.9 V to 12 V
- Output voltage: 12 V with 4 % accuracy
- Maximum input current:
- up to 10 A - instantaneous
- to 8 A - for a few seconds
- up to 7 A - for an extended period
- Output current: see graphs
- Low power consumption at rest
- Efficiency of 80 - 95 %
- Security:
- Before reverse power connection
- Thermal - switches off the system at too high a temperature
- Switch-on interlock at too low a supply voltage - below 2.5 V
- Short circuit
- Input current limitation to 10 A
- Two mounting holes for M2 screws
- Dimensions: 40.6 x 15.2 x 4.6 mm
- Weight (without connectors): 3.4 g
VIN- input voltage, must not exceed the output voltage.
GND- ground potential.
VOUT- output voltage. In case of adjustable version it is selected by means of a potentiometer.
ENABLE- switches the system into low power consumption state. By default, the pin is pulled up to the VIN supply voltage via a 100 kΩ resistor. This means that if the output is left unconnected, the inverter is switched on by default. In order to put the circuit into standby mode, the low state (below 0.4 V) must be given. In this situation, the module only consumes current flowing through the 100 kΩ resistor, which is 10 µA depending on the input voltage being connected.
Useful links
| Name | Value |
|---|---|
| Length | 41 mm |
| Width | 15 mm |
| Height | 5 mm |
| Voltage to | 2.9 V |
| Voltage from | 12.0 V |
| Voltage output from | 12.0 V |
| Output voltage to | 12.0 V |
| Nominal output voltage | 12.0 V |
| Current | 3.5 V |
| Stabilizer - Type2 | switching |
| Stabilizer - Type | step-up |
| Width | 8.5 cm |
| Height | 10 cm |
| Depth | 0.3 cm |
| Weight | 0.008 kg |
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If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
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Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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