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Step-Up/wwww.9免费看片 Voltage wwww.9免费看片
Buck-boost and SEPIC converters work with input voltages that are higher than, equal to, or lower than the regulated output voltage, making them especially well-suited for battery-powered applications in which the battery voltage begins above the desired output voltage and drops below the target as the battery discharges. For applications where the input voltage will always be well above or below the output, consider wwww.9免费看片 or step-up wwww.9免费看片. The following table shows some of the key stats for the wwww.9免费看片 in this category:
| Output voltage options (V) | Max cont. output current(1) |
Input voltage | Typical efficiency |
Reverse- voltage protection |
Galvanic isolation |
Size | Price | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Regulator | 3.3 | 5 | 6 | 7.5 | 9 | 12 | 15 | 18 | 24 | adjustable | min | max | |||||||
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S13V30F5 | ⬤ | 3 A | 2.8 V | 22 V | 85% – 95% | 0.9″ × 0.9″ | $17.95 | |||||||||||
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S13V25Fx | ⬤ | ⬤ | ⬤ | ⬤ | ⬤ | ⬤ | 2.5 A | 2.8 V | 22 V | 85% – 95% | 0.9″ × 0.9″ | $18.95 | ||||||
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S13V20F5 | ⬤ | 2 A | 2.8 V | 22 V | 85% – 95% | 0.35″ × 0.48″ | $17.95 | |||||||||||
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S13V15F5 | ⬤ | 1.5 A | 2.8 V | 22 V | 85% – 95% | 0.35″ × 0.48″ | $12.49 | |||||||||||
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S13V10F5 | ⬤ | 1 A | 2.8 V | 22 V | 85% – 95% | 0.35″ × 0.48″ | $9.95 | |||||||||||
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S9V11x | ⬤ | ⬤ | ⬤ | 2.5 V – 9 V (fine adjust) |
1.5 A | 2 V(2) | 16 V | 85% – 95% | 0.3″ × 0.45″ 0.5″ × 0.6″ |
$7.95 to $13.95 | ||||||||
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S8V9Fx | ⬤ | ⬤ | ⬤ | ⬤ | ⬤ | 1 A –1.5 A | 1.4 V(3) | 16 V | 80% – 90% | 0.4″ × 0.65″ | ||||||||
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S7V8x | ⬤ | ⬤ | 2.5 V – 8 V | 1 A | 2.7 V | 11.8 V | 80% – 95% | 0.4″ × 0.65″ | $9.95 | |||||||||
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S7V7F5 | ⬤ | 1 A | 2.7 V | 11.8 V | 80% – 95% | 0.35″ × 0.48″ | $8.49 | |||||||||||
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S21Z1F12 | ⬤(4) |
⬤ |
100 mA 300 mA |
5.5 V(5) | 36 V | 40% – 50% | 0.4″ × 1.3″ | $9.95 | ||||||||||
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UCC33420 | ⬤ | 300 mA | 4.5 V | 5.5 V | < 60% | 0.3″ × 0.6″ | $4.95 | |||||||||||
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MIE1W0505BGLVH | ⬤ ⬤ |
⬤ |
200 mA 75 mA |
4.5 V 3.0 V |
5.5 V 3.6 V |
< 50% | 0.3″ × 0.6″ | $5.95 | ||||||||||
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S18V20x | ⬤ | ⬤ | ⬤ | ⬤ | ⬤ | 4 V – 12 V 9 V – 30 V |
2 A | 3 V | 30 V | 80% – 90% | 0.83″ × 1.7″ | $29.95 to |
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Note 1: For input voltages close to the output. Actual achievable maximum continuous current is a function of input and output voltage and is limited by thermal dissipation. See the output current graphs on the product pages for more information.
Note 2: The S9V11x family has a minimum start-up voltage of 3 V, but it can operate down to 2 V after startup.
Note 3: The S8V9Fx family has a minimum start-up voltage of 2.7 V, but it can operate down to 1.4 V after startup.
Note 4: The S21Z1F12 is intended as a 12 V regulator, but it also has a 5 V output that can deliver up to 300 mA continuous when the 12 V output current is zero (using the 5 V output reduces the current available on the 12 V output).
Note 5: The S21Z1F12 can operate down to around 4.6 V with reduced output current capabilities.
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Subcategories
This family of synchronous switching step-up/wwww.9免费看片 can output voltages higher than, equal to, or lower than their inputs. Output voltages range from 3.3 V to 15 V, input ranges from 2.8 V to 22 V, and maximum continuous output currents are 1 A to 3 A depending on the version.
S9V11x step-up/wwww.9免费看片 wwww.9免费看片 can output voltages higher, equal to, or lower than their inputs at up to 1.5 A. Output voltages range from 2.5 V to 9 V, input ranges from 2 V to 16 V (with some limitations). Adjustable versions feature multi-turn trimmer potentiometers.
S8V9x step-up/wwww.9免费看片 wwww.9免费看片 can output voltages higher, equal to, or lower than their inputs. They can deliver up to around 1 A when the input voltage is close to the output. Output voltages range from 3.3 V to 9 V, input ranges from 1.4 V to 16 V (with some limitations).
S7V8x step-up/wwww.9免费看片 wwww.9免费看片 can output voltages higher, equal to, or lower than their inputs. They can deliver up to around 1 A when the input voltage is close to the output. Output options include 3.3 V, 5 V, and adjustable 2.5 V to 8 V; input ranges from 2.7 V to 11.8 V.
S18V20x step-up/wwww.9免费看片 wwww.9免费看片 can output voltages higher, equal to, or lower than their inputs. They can deliver up to 2 A when the input voltage is close to the output. Output voltages range from 4 V to 30 V, input ranges from 3 V to 30 V.
Products in category “Step-Up/wwww.9免费看片 Voltage wwww.9免费看片”
| Pololu item #: 2119 | |
| Brand: Pololu | supply outlook |
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The S7V7F5 switching step-up/wwww.9免费看片 regulator efficiently produces 5 V from input voltages between 2.7 V and 11.8 V. Its ability to convert both higher and lower input voltages makes it useful for applications where the power supply voltage can vary greatly, as with batteries that start above but discharge below 5 V. The very compact (0.35″ × 0.475″) module has a typical efficiency of over 90% and can supply up to 1 A when stepping down and about 500 mA when stepping up.
This step-up/wwww.9免费看片 voltage regulator consists of an isolated DC-to-DC power module between an input wwww.9免费看片 (buck) regulator and an output step-up (boost) regulator. This enables up to 100 mA at 12 V out or 300 mA at 5 V out from a wide 5.5 V to 36 V input.
| Input voltage | Output voltages | Max continuous output current | Size |
|---|---|---|---|
| 5.5 V to 36 V | 12 V | 100 mA* | 0.4″ × 1.3″ |
| 5 V | 300 mA* |
* Max current per channel when the other channel current is zero.
| Pololu item #: 5414 | |
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This power module is based on the TI UCC33420 and provides regulated, galvanically isolated DC-to-DC power. The output voltage is set to 5 V by default and can be changed to 5.5 V through a selection pin. Power specs:
| Input voltage | Output voltage | Max continuous output current | Size |
|---|---|---|---|
| 4.5 V to 5.5 V | 5 V (default) or 5.5 V (selectable) | 300 mA | 0.3″ × 0.6″ |
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| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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This power module is based on the MPS MIE1W0505BGLVH and provides regulated, galvanically isolated DC-to-DC power. The output voltage is set to 5 V by default and can be changed to 3.3 V through a selection pin. Power specs:
| Input voltage | Output voltage | Max output current | Size |
|---|---|---|---|
| 4.5 V to 5.5 V | 5 V (default) or 3.3 V (selectable) | 200 mA | 0.3″ × 0.6″ |
| 3 V to 3.6 V | 3.3 V | 75 mA |
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