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S8V9Fx Step-Up/Step-Down Voltage Regulators
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The S8V9Fx family of efficient switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) convert both higher and lower input voltages to a regulated output voltage. They take input voltages from 1.4 V to 16 V and increase or decrease them as necessary, offering typical efficiencies of 80% to 90% and typical continuous output currents over 1 A for input voltages close to the output voltage. (Note: The minimum start-up voltage is 2.7 V; see the individual product pages for details.)
The flexibility in input voltage offered by this family of regulators is especially well-suited for battery-powered applications in which the battery voltage begins above the regulated voltage and drops below as the battery discharges. 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 S8V9Fx regulators have under-voltage lockout and over-current protection. A thermal shutdown feature also helps prevent damage from overheating and a soft-start feature limits the inrush current and gradually ramps the output voltage on startup.
Alternatives available with variations in these parameter(s): output voltage Select variant…
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Products in category “S8V9Fx Step-Up/Step-Down Voltage Regulators”
Pololu item #: 4964 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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This synchronous switching step-up/step-down regulator efficiently produces 3.3 V from input voltages between 1.4 V and 16 V. (Note: minimum startup voltage is 2.7 V, but it operates down to 1.4 V after that.) 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 3.3 V. The available output current depends on the input voltage (typically between 1 A and 1.5 A continuous for input voltages close to the output). The regulator also features an optional enable input that can be used to put the regulator in a low-power state with a current draw of less than 15 µA per volt on VIN. The board measures 0.4″ × 0.65″ and has a typical efficiency of 80% to 90%.
Pololu item #: 4965 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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This synchronous switching step-up/step-down regulator efficiently produces 5 V from input voltages between 1.4 V and 16 V. (Note: minimum startup voltage is 2.7 V, but it operates down to 1.4 V after that.) 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 available output current depends on the input voltage (typically between 1 A and 1.5 A continuous for input voltages close to the output). The regulator also features an optional enable input that can be used to put the regulator in a low-power state with a current draw of less than 15 µA per volt on VIN. The board measures 0.4″ × 0.65″ and has a typical efficiency of 80% to 90%.
Pololu item #: 4966 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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This synchronous switching step-up/step-down regulator efficiently produces 6 V from input voltages between 1.4 V and 16 V. (Note: minimum startup voltage is 2.7 V, but it operates down to 1.4 V after that.) 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 6 V. The available output current depends on the input voltage (typically between 1 A and 1.5 A continuous for input voltages close to the output). The regulator also features an optional enable input that can be used to put the regulator in a low-power state with a current draw of less than 15 µA per volt on VIN. The board measures 0.4″ × 0.65″ and has a typical efficiency of 80% to 90%.
Pololu item #: 4967 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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This synchronous switching step-up/step-down regulator efficiently produces 7.5 V from input voltages between 1.4 V and 16 V. (Note: minimum startup voltage is 2.7 V, but it operates down to 1.4 V after that.) 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 7.5 V. The available output current depends on the input voltage (typically over 1 A for continuous for input voltages close to the output). The regulator also features an optional enable input that can be used to put the regulator in a low-power state with a current draw of less than 15 µA per volt on VIN. The board measures 0.4″ × 0.65″ and has a typical efficiency of 80% to 90%.
Pololu item #: 4968 | |
Brand: Pololu | supply outlook |
Status: Active and Preferred | |
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This synchronous switching step-up/step-down regulator efficiently produces 9 V from input voltages between 1.4 V and 16 V. (Note: minimum startup voltage is 2.7 V, but it operates down to 1.4 V after that.) 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 9 V. The available output current depends on the input voltage (typically around 1 A continuous for input voltages close to the output). The regulator also features an optional enable input that can be used to put the regulator in a low-power state with a current draw of less than 15 µA per volt on VIN. The board measures 0.4″ × 0.65″ and has a typical efficiency of 80% to 90%.