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. 516-6177
Mfr. Part No.MC7806CTG
€0.54
Each
units
- 2.2A Linear Voltage 1 24 mV ±4% 30 mV Through Hole Positive TO-220 3.3mA 3 - Fixed
RS Stock No. 125-0050
Mfr. Part No.MC7806CTG
€0.433
Each (In a Tube of 50)
units
- 2.2A Linear Voltage 1 24 mV ±4% 30 mV Through Hole Positive TO-220 3.3mA 3 - Fixed
RS Stock No. 124-1691
Mfr. Part No.LM350T
€0.959
Each (In a Tube of 50)
units
- 3A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220AB - 3 1.3V Adjustable
RS Stock No. 516-5073
Mfr. Part No.MC78LC33NTRG
€0.49
Each
units
- 80mA Linear Voltage 1 0.2 %/V ±2.5% 60 mV Surface Mount Positive TSOP 0.0011mA 5 - Fixed
RS Stock No. 102-3495
Mfr. Part No.MC78LC33NTRG
€0.158
Each (On a Reel of 3000)
units
- 80mA Linear Voltage 1 0.2 %/V ±2.5% 60 mV Surface Mount Positive TSOP 0.0011mA 5 - Fixed
RS Stock No. 464-091
Mfr. Part No.LM317LDG
€0.144
Each (In a Pack of 25)
units
- 100mA Linear Voltage 1 0.07 %/V ±4% 0.5 % Surface Mount Positive SOIC - 8 1.3V Adjustable
RS Stock No. 102-2268
Mfr. Part No.LM317LDG
€0.306
Each (In a Tube of 98)
units
- 100mA Linear Voltage 1 0.07 %/V ±4% 0.5 % Surface Mount Positive SOIC - 8 1.3V Adjustable
RS Stock No. 785-7030
Mfr. Part No.MC78M06CTG
€0.389
Each (In a Pack of 10)
units
- 700mA Linear Voltage 1 50 mV - 120 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 124-9986
Mfr. Part No.LM317LDR2G
€0.079
Each (On a Reel of 2500)
units
- 100mA Linear Voltage 1 0.07 %/V ±4% 0.5 % Surface Mount Positive SOIC - 8 1.3V Adjustable
RS Stock No. 463-767
Mfr. Part No.MC7805CD2TG
€0.435
Each (In a Pack of 10)
units
- 1A Linear Voltage 1 20 mV ±4% 25 mV Surface Mount Positive D2PAK 3.2mA 3 - Fixed
RS Stock No. 102-1392
Mfr. Part No.MC7805CD2TG
€0.435
Each (In a Tube of 50)
units
- 1A Linear Voltage 1 20 mV ±4% 25 mV Surface Mount Positive D2PAK 3.2mA 3 - Fixed
RS Stock No. 162-9417
Mfr. Part No.MC78M06CTG
€0.389
Each (In a Tube of 50)
units
- 700mA Linear Voltage 1 50 mV - 120 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 125-0044
Mfr. Part No.MC34167TVG
€2.109
Each (In a Tube of 50)
units
Boost/Buck Controller 5A Buck Boost Switching 1 4 mV, 10 mV, 15 mV - 1 mV, 4 mV, 30 mV Surface Mount - TO-220 - 5 - Fixed
RS Stock No. 806-2126
Mfr. Part No.MC34167TVG
€2.486
Each (In a Pack of 5)
units
Boost/Buck Controller 5A Buck Boost Switching 1 4 mV, 10 mV, 15 mV - 1 mV, 4 mV, 30 mV Surface Mount - TO-220 - 5 - Fixed
RS Stock No. 162-9415
Mfr. Part No.MC78L18ACPRAG
€0.103
Each (On a Reel of 2000)
units
- 100mA Linear Voltage 1 325 mV - 170 mV Through Hole Positive TO-92 6.5mA 3 - Fixed
RS Stock No. 785-7018
Mfr. Part No.MC78L18ACPRAG
€0.307
Each (In a Pack of 20)
units
- 100mA Linear Voltage 1 325 mV - 170 mV Through Hole Positive TO-92 6.5mA 3 - Fixed
RS Stock No. 163-2467
Mfr. Part No.MC33166TG
€2.742
Each (In a Tube of 50)
units
Boost/Buck Controller, Inverting, Non-Inverting 3A Buck Boost Switching 1 0.03 %/V - 2 mV, 3 mV, 4 mV Through Hole - TO-220 - 5 - Fixed
RS Stock No. 162-9069
Mfr. Part No.NCP511SN33T1G
€0.145
Each (On a Reel of 3000)
units
- - Low Dropout Voltage 1 3.5 mV/V 2% 0.8 mV/mA Surface Mount Positive TSOP 100µA 5 - Fixed
RS Stock No. 463-650
Mfr. Part No.MC7805CDTG
€0.425
Each (In a Pack of 20)
units
- 1A Linear Voltage 1 20 mV ±4% 25 mV Surface Mount Positive DPAK 3.2mA 3 - Fixed
RS Stock No. 162-9538
Mfr. Part No.NCP551SN50T1G
€0.113
Each (On a Reel of 3000)
units
- 150mA Low Dropout Voltage 1 30 mV 2% 65 mV Surface Mount Positive TSOP 8µA 5 - Fixed