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S18V20x Step-Up/Step-Down Voltage Regulators
This family of step-up/step-down regulators take an input voltage from 3 V to 30 V and increase or decrease it as necessary to produce the desired output voltage. They allow a typical output current of up to 2 A when the input voltage is close to the output voltage and offer typical efficiencies of 80% to 90%. Their ability to convert both higher and lower input voltages makes them useful for applications where the power supply voltage can vary greatly, as with batteries that start above but discharge below the regulated voltage. Without the typical restriction on the battery voltage staying above the required voltage throughout its life, new battery packs and form factors can be considered.
The regulators include built-in reverse-voltage protection, over-current protection, thermal shutdown, and an under-voltage lockout that keeps the modules from behaving erratically when the input voltage gets too low. The S18V20x family includes versions with fixed 5 V, 6 V, 9 V, 12 V, or 24 V outputs and versions with adjustable 4 V to 12 V or 9 V to 30 V outputs:
| Regulator | Output voltage | Typical max output current | Input voltage range | Typical efficiency | Size | Price |
|---|---|---|---|---|---|---|
| #2574: S18V20F5 | 5 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $35.95 |
| #2575: S18V20F6 | 6 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $35.95 |
| #2576: S18V20F9 | 9 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $35.95 |
| #2577: S18V20F12 | 12 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $35.95 |
| #2582: S18V20F24 | 24 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $39.95 |
| #2572: S18V20ALV | 4 V – 12 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $37.95 |
| #2573: S18V20AHV | 9 V – 30 V | 2 A | 2.9 V – 32 V | 80% – 90% | 0.825″ × 1.7″ | $40.95 |
Compare all products in this category
Products in category “S18V20x Step-Up/Step-Down Voltage Regulators”
| Pololu item #: 2574 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
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This powerful step-up/step-down regulator efficiently produces a fixed 5 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
| Pololu item #: 2575 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
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This powerful step-up/step-down regulator efficiently produces a fixed 6 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
| Pololu item #: 2576 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
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This powerful step-up/step-down regulator efficiently produces a fixed 9 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
| Pololu item #: 2577 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
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This powerful step-up/step-down regulator efficiently produces a fixed 12 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
| Pololu item #: 2582 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
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This powerful step-up/step-down regulator efficiently produces a fixed 24 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
| Pololu item #: 2572 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
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This powerful step-up/step-down regulator efficiently produces an adjustable 4 V to 12 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
| Pololu item #: 2573 | |
| Brand: Pololu | supply outlook |
| Status: Rationed (Active and Preferred) | |
|
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This powerful step-up/step-down regulator efficiently produces an adjustable 9 V to 30 V output from input voltages between 3 V and 30 V while allowing a typical output current of up to 2 A when the input voltage is close to the output voltage and offering typical efficiencies of 80% to 90%. 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 the regulated voltage.
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