12V Step-Up Voltage Regulator U3V70F12
The U3V70x boost (step-up) voltage regulators are high-current, high-efficiency synchronous switching regulators that generate higher output voltages from input voltages as low as 2.9V. The regulators actively limit the instantaneous input currents to 10A, and the input current can typically be as high as 8A for several seconds before the thermal protection activates. Input currents of around 6A can typically be maintained for many minutes without triggering thermal shutdown, though the actual performance depends on depending on the input and output voltages as well as external factors such as ambient temperature and airflow. For boost regulators, the output current equals the input current times the efficiency times the ratio of VIN to VOUT, so the more you are boosting, the lower the maximum output current will be (see the Typical efficiencies and output currents section below for performance graphs).
These regulators feature a variety of built-in protections, including reverse voltage protection to keep your load safe in the event power is accidentally connected backward, and unlike most boost regulators, these units offer a true shutdown option that turns off power to the load (with typical boost regulators, the input voltage will pass directly through to the output when they are disabled).
Details for item #2895
Features and specifications
- Input voltage: 2.9V to 12V
- Output voltage: 12V with 4% accuracy
- True shutdown option turns off power to the load
- Typical efficiency of 80% to 95%, depending on input voltage and load (see the Typical efficiencies and output currents section below for performance graphs)
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10A switch allows for:
- Instantaneous input currents up to 10A
- Input currents up to 7A for several seconds
- Input currents up to 6A for prolonged durations
- low quiescent current
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Integrated protections:
- Reverse voltage protection
- Short-circuit protection with hiccup recovery
- Over-temperature shutoff
- Under-voltage lockout (typical thresholds are 2.4V falling, 2.8V rising)
- Cycle-by-cycle input current limiting to 10A
- Compact size: 1.6″×0.6″×0.18″ (40.6×15.2×4.6mm)
- Weight: 3.5g
- Two mounting holes for #2 or M2 screws
- Smaller holes for 0.1″ header pins and larger holes for terminal blocks offer several options for connecting to the board
Dimensions
| Size: | 0.6″ × 1.6″ × 0.18″1 |
|---|---|
| Weight: | 3.6 g2 |
General specifications
| Minimum operating voltage: | 2.9 V |
|---|---|
| Maximum operating voltage: | 12 V |
| Maximum input current: | 10 A3 |
| Output voltage: | 12 V |
| Reverse voltage protection?: | Y |
| Output type: | fixed 12V |