Voltage Regulators

Voltage regulators are ICs used to generate a stable and consistent voltage within a circuit. They take an input voltage and convert this into a fixed output voltage. Even if the input voltage changes, the regulator will continue to provide the same output. The voltage regulator will take the output voltage and compare it to a reference voltage. It will then adjust the pass device to help manage the output voltage. This helps to regulate the voltage throughout a circuit design, dependant on where the voltage regulator(s) are.

Voltage regulators are essential in electronic circuits that include components that require a particular voltage input. For example, a processor. The input voltage, output voltage and output current are all important things to consider when choosing a voltage regulator IC.

Voltage regulators cannot convert the voltage from AC to DC, for example. If you require voltage conversion to run in parallel to your voltage regulator, please see our range of Digital to Analogue Converters (DACs) or Analogue to Digital Converters (ADCs).

Types of voltage regulator

  • Buck-Boost Switching Regulator
  • Charge Pump
  • Linear Voltage Regulator
  • LDO (Low Dropout) Voltage Regulator

Where are voltage regulators used?

Voltage regulators are found in most electronics circuits that require voltage management or voltage regulation. This includes chargers, power supply units (PSUs), telecommunications and automotive applications.


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Description Price Regulator Function Maximum Output Current Regulator Type Number of Outputs Line Regulation Accuracy Load Regulation Mounting Type Polarity Package Type Quiescent Current Pin Count Reference Voltage Output Type
RS Stock No. 298-8558
Mfr. Part No.L7815CV
SGD0.99
Each
units
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 168-6061
Mfr. Part No.L7815CV
SGD0.65
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 918-1971
Mfr. Part No.L7805CV
SGD0.947
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 100 mV - 100 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 168-6809
Mfr. Part No.LM317T
SGD1.274
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 %, 0.5 %Vo, 25 mV%/Vo Through Hole Positive TO-220 - 3 1.25V Adjustable
RS Stock No. 168-6066
Mfr. Part No.L7905CV
SGD0.706
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 100 mV - 100 mV Through Hole Negative TO-220 3mA 3 - Fixed
RS Stock No. 714-0792
Mfr. Part No.LM317T
SGD1.229
Each (In a Pack of 10)
units
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 %, 0.5 %Vo, 25 mV%/Vo Through Hole Positive TO-220 - 3 1.25V Adjustable
RS Stock No. 298-8615
Mfr. Part No.L7905CV
SGD1.09
Each
units
- 1.5A Linear Voltage 1 100 mV - 100 mV Through Hole Negative TO-220 3mA 3 - Fixed
RS Stock No. 795-9066
Mfr. Part No.LM337SP
SGD1.25
Each (In a Pack of 10)
units
- 1.5A Linear Voltage 1 0.04 %/V - 50 mV Through Hole Negative TO-220 100µA 3 -1.25V Adjustable
RS Stock No. 168-7735
Mfr. Part No.LM337SP
SGD1.25
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 0.04 %/V - 50 mV Through Hole Negative TO-220 100µA 3 -1.25V Adjustable
RS Stock No. 793-1358
Mfr. Part No.L7815CV-DG
SGD1.453
Each (In a Pack of 10)
units
- 1.5A Linear Voltage 1 50 mV - 100 mV Through Hole - TO-220 6mA 3 - Fixed
RS Stock No. 102-8629
Mfr. Part No.L7815CV-DG
SGD0.746
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 50 mV - 100 mV Through Hole - TO-220 6mA 3 - Fixed
RS Stock No. 686-9814
Mfr. Part No.L78M08CV
SGD0.769
Each (In a Pack of 25)
units
- 500mA Linear Voltage 1 100 mV - 160 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 168-6611
Mfr. Part No.L78M08CV
SGD0.767
Each (In a Tube of 50)
units
- 500mA Linear Voltage 1 100 mV - 160 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 168-6062
Mfr. Part No.L7824CV
SGD0.794
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 480 mV - 480 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 298-8564
Mfr. Part No.L7824CV
SGD0.91
Each
units
- 1.5A Linear Voltage 1 480 mV - 480 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 168-6799
Mfr. Part No.L78L05ACUTR
SGD0.205
Each (On a Reel of 2500)
units
- 100mA Linear Voltage 1 150 mV ±5% 60 mV Surface Mount Positive SOT-89 6mA 3 - Fixed
RS Stock No. 714-7780
Mfr. Part No.L78S05CV
SGD1.00
Each (In a Pack of 10)
units
- 2A Linear Voltage 1 100 mV - 100 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 686-9252
Mfr. Part No.LD1117DT33TR
SGD0.605
Each (In a Pack of 25)
units
- 1.3A Low Dropout Voltage 1 6 mV ±1% 10 mV Surface Mount Positive DPAK 5mA 3 - Fixed
RS Stock No. 102-3530
Mfr. Part No.L78S05CV
SGD0.701
Each (In a Tube of 50)
units
- 2A Linear Voltage 1 100 mV - 100 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 714-0679
Mfr. Part No.L78L05ACUTR
SGD0.611
Each (In a Pack of 10)
units
- 100mA Linear Voltage 1 150 mV ±5% 60 mV Surface Mount Positive SOT-89 6mA 3 - Fixed