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Pololu Adjustable Step-Up Voltage Regulator U1V11A
This compact (0.45″×0.6″) U1V11A switching step-up (or boost) voltage regulator efficiently boosts input voltages as low as 0.5 V to an adjustable output voltage between 2 V and 5.25 V. Unlike most boost regulators, the U1V11A offers a true shutdown option that turns off power to the load, and it automatically switches to a linear down-regulation mode when the input voltage exceeds the output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.
| Description | Specs (11) | Pictures (7) | Resources (5) | FAQs (0) | On the blog (0) | Distributors (43) |
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Dimensions
| Size: | 0.45″ × 0.6″ × 0.1″1 |
|---|---|
| Weight: | 0.7 g1 |
General specifications
| Minimum operating voltage: | 0.5 V |
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| Maximum operating voltage: | 5.5 V |
| Maximum input current: | 1.2 A2 |
| Minimum output voltage: | 2 V |
| Maximum output voltage: | 5.25 V |
| Reverse voltage protection?: | N |
| Maximum quiescent current: | 4 mA3 |
Identifying markings
| PCB dev codes: | reg12a |
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| Other PCB markings: | 0J7440 |
Notes:
- 1
- Without included optional headers.
- 2
- Regulator may overheat at lower input currents when VIN is much lower than VOUT. Available output current is a function of VIN, VOUT, and the regulator efficiency.
- 3
- The highest quiescent currents occur at very low input voltages; for most of the input voltage range, the quiescent current is well below 1 mA.
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