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. 779-9038
Mfr. Part No.LT1084IT#PBF
kr 98,17
Each
Units
- 5A Low Dropout Voltage 1 0.5 % - 0.4 % Through Hole Positive TO-220 10mA 3 1.25V Adjustable
RS Stock No. 178-4766
Mfr. Part No.MC7808BTG
kr 4,392
Each (In a Tube of 50)
Units
- 1A Linear Voltage 1 160 mV 4% 160 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 858-0835
Mfr. Part No.LT1084CT#PBF
kr 88,60
Each
Units
- 5A Low Noise LDO 1 0.015 % - 0.1 % Through Hole Positive TO-220 - 3 - Adjustable
RS Stock No. 177-0811
Mfr. Part No.MIC2920A-5.0WS
BrandMicrochip
kr 5,58
Each (In a Pack of 10)
Units
- 400mA Low Dropout Voltage 1 0.4 % ±2% 0.3 % Surface Mount - SOT-223 140 (Typ.)µA 3 + Tab - Fixed
RS Stock No. 686-9530
Mfr. Part No.L7805ACD2T-TR
kr 5,614
Each (In a Pack of 25)
Units
- 1.5A Linear Voltage 1 50 mV ±2% 100 mV Surface Mount Positive D2PAK 4.3mA 3 - Fixed
RS Stock No. 533-5632
Mfr. Part No.LM2940T-5.0/NOPB
kr 20,55
Each
Units
- 1A Low Dropout Voltage 1 50 mV - 50 mV Through Hole Positive TO-220 - 3 - Fixed
RS Stock No. 100-3965
Mfr. Part No.LM317AT/NOPB
kr 12,425
Each (In a Tube of 45)
Units
- 1.5A Linear Voltage 1 0.01 %/V ±1% 0.5 % Through Hole Positive TO-220 - 3 1.262V Adjustable
RS Stock No. 661-6705
Mfr. Part No.UA7812CKCS
kr 7,262
Each (In a Pack of 5)
Units
- 1.5A Linear Voltage 1 240 mV - 240 mV Through Hole Positive TO-220 - 3 - Fixed
RS Stock No. 535-8613
Mfr. Part No.LM1117IDT-3.3/NOPB
kr 13,894
Each (In a Pack of 5)
Units
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount Positive TO-252 - 3 - Fixed
RS Stock No. 102-5679
Mfr. Part No.LM1117IDT-3.3/NOPB
kr 11,851
Each (In a Tube of 75)
Units
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount Positive TO-252 - 3 - Fixed
RS Stock No. 168-6062
Mfr. Part No.L7824CV
kr 3,459
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. 655-644
Mfr. Part No.CSR2-15E
kr 470,19
Each
Units
- 15A Linear Voltage - - - - Panel Mount - - - 3 - Adjustable
RS Stock No. 769-5539
Mfr. Part No.SPX3940T-L-3-3
BrandMaxLinear
kr 15,568
Each (In a Pack of 5)
Units
- 1A Low Dropout Voltage 1 1 % 1% 1.5 % Surface Mount Positive D2PAK (TO-263) 25mA 3 - Fixed
RS Stock No. 122-0379
Mfr. Part No.AP7313-33SAG-7
kr 0,905
Each (On a Reel of 3000)
Units
- 150mA Linear Voltage 1 0.2 %/V ±2% 0.6 % Surface Mount Positive SOT-23 85µA 3 - Fixed
RS Stock No. 100-3962
Mfr. Part No.LM2940T-5.0/NOPB
kr 12,432
Each (In a Tube of 45)
Units
- 1A Low Dropout Voltage 1 50 mV - 50 mV Through Hole Positive TO-220 - 3 - Fixed
RS Stock No. 423-557
Mfr. Part No.LT3080EST#PBF
kr 41,96
Each
Units
- 1.1A Low Dropout Voltage 1 0.003 mV/V - 1.3 mV Surface Mount Positive SOT-223 - 3+Tab 0.005V Adjustable
RS Stock No. 165-7779
Mfr. Part No.LE50ABZ-AP
kr 2,894
Each (On a Tape of 2000)
Units
- 100mA Low Dropout Voltage 1 20 mV ±1% 15 mV Through Hole Positive TO-92 1.5mA 3 - Fixed
RS Stock No. 661-6226
Mfr. Part No.TL780-05KCS
kr 7,654
Each (In a Pack of 5)
Units
- 1.5A Linear Voltage 1 - ±1% - Through Hole Positive TO-220 - 3 - Fixed
RS Stock No. 162-5911
Mfr. Part No.TL780-05KCS
kr 6,284
Each (In a Tube of 50)
Units
- 1.5A Linear Voltage 1 - ±1% - Through Hole Positive TO-220 - 3 - Fixed
RS Stock No. 751-3064
Mfr. Part No.AP7313-33SAG-7
kr 2,40
Each (In a Pack of 50)
Units
- 150mA Linear Voltage 1 0.2 %/V ±2% 0.6 % Surface Mount Positive SOT-23 85µA 3 - Fixed