• Regulator 3.3V 1A (input 2.7 - 11.8)

Regulator 3.3V 1A (input 2.7 - 11.8)

The Pololu step-up/step-down voltage regulator S7V8F3 is a switching regulator (also called a switched-mode power supply (SMPS) or DC-to-DC converter) that uses a buck-boost topology. It takes an input voltage from 2.7 V to 11.8 V and increases or decreases the voltage to a fixed 3.3 V output with a typical efficiency of over 90%. The input voltage can be higher than, lower than, or equal to the set output voltage, and the voltage is regulated to achieve a steady 3.3 V.

This flexibility in input voltage is 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. 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.

Quick Spec

  • input voltage: 2.7 V to 11.8 V
  • fixed 3.3 V output with +5/-2% accuracy
  • typical continuous output current: 500 mA to 1 A across most combinations of input and output voltages 
  • integrated over-temperature and short-circuit protection
  • small size: 0.45″ × 0.65″ × 0.1″ (11 × 17 × 3 mm)

Shipping List

  • 1 x Regulator 3.3V 1A (input 2.7 - 11.8)


Regulator 3.3V 1A (input 2.7 - 11.8)

  • Brand: Pololu Electronics
  • Product Code: 2122
  • Stock

    Warehouse Stock Status Location
    Centurion In Stock UR255
    Stellenbosch In Stock L90
  • R100.00 (Inc Tax: R115.00)


Related Products

Voltage Reg  Adj 2.5 - 8V @ 1A

Voltage Reg Adj 2.5 - 8V @ 1A

Voltage Reg Adj 2.5 - 8V @ 1A The S7V8A switching step-up/step-down regulator efficiently produces an adjustable output between 2.5 V to 8 V from input voltages between 2.7 V and 11.8 V. Its ability..

R115.00 (Inc Tax: R132.25)

Pololu Adj Boost Regulator 4-25V @ 2A

Pololu Adj Boost Regulator 4-25V @ 2A

Adjustable Boost Regulator 4-25V @ 2A The Pololu adjustable boost regulator is a very flexible switching regulator (also called a switched-mode power supply, SMPS, or DC-to-DC converter) that can gen..

R189.00 (Inc Tax: R217.35)

Mini Buck Con VIN 4.5-16V OUT 5/3.3V 4A

Mini Buck Con VIN 4.5-16V OUT 5/3.3V 4A

Mini Buck Con VIN 4.5-16V OUT 5/3.3V 4A This is one of the smallest buck converters we carry. The step-down voltage regulator has an inout range of 4.5V - 16V and a selectable output of either 3.3V..

R65.00 (Inc Tax: R74.75)

Regulator VIN 6.5-50V VOUT 6V 5.5A

Regulator VIN 6.5-50V VOUT 6V 5.5A

Regulator VIN 6.5-50V VOUT 6V 5.5A This powerful synchronous switching step-down (buck) regulator takes an input voltage of up to 50V and efficiently reduces it to 6V. The board measures only 25.4m..

R298.00 (Inc Tax: R342.70)

Regulator VIN 5.5-50V VOUT 5V 5.5A

Regulator VIN 5.5-50V VOUT 5V 5.5A

Regulator VIN 5.5-50V VOUT 5V 5.5A This powerful synchronous switching step-down (buck) regulator takes an input voltage of up to 50V and efficiently reduces it to 5V. The board measures only 25.4m..

R298.00 (Inc Tax: R342.70)

Tags: regulator, 3.3v, reg, buck boost, buck, boost, step up, step-up, step down, step-down, 1a