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. 102-3491
Mfr. Part No.MC7812CTG
kr 4,453
Each (In a Tube of 50)
Units
- 1A Linear Voltage 1 48 mV ±4% 60 mV Through Hole Positive TO-220 3.4mA 3 - Fixed
RS Stock No. 545-5764
Mfr. Part No.LT1086CT-12#PBF
kr 42,94
Each
Units
- 1.5A Low Dropout Voltage 1 25 mV - 36 mV Through Hole Positive TO-220 5mA 3 - Fixed
RS Stock No. 742-7691
Mfr. Part No.ADP150AUJZ-3.3-R7
kr 10,132
Each (In a Pack of 5)
Units
- 150mA Low Dropout Voltage 1 0.05 %/V -2.5 → 1.5% 0.008 %/mA Surface Mount Positive TSOT 0.01mA 5 - Fixed
RS Stock No. 162-9537
Mfr. Part No.NCP551SN33T1G
kr 1,46
Each (On a Reel of 3000)
Units
- 150mA Low Dropout Voltage 1 30 mV 2% 65 mV Surface Mount Positive TSOP 8µA 5 - Fixed
RS Stock No. 144-5894
Mfr. Part No.MIC5200-5.0YS
BrandMicrochip
kr 7,904
Each (In a Tube of 78)
Units
- 100mA Low Dropout Voltage 1 0.1 % ±1% 0.16 % Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS Stock No. 125-0057
Mfr. Part No.MC78M12CDTG
kr 3,486
Each (In a Tube of 75)
Units
- 700mA Linear Voltage 1 50 mV - 240 mV Surface Mount Positive DPAK - 3 - Fixed
RS Stock No. 785-7272
Mfr. Part No.NCP551SN33T1G
kr 3,707
Each (In a Pack of 10)
Units
- 150mA Low Dropout Voltage 1 30 mV 2% 65 mV Surface Mount Positive TSOP 8µA 5 - Fixed
RS Stock No. 751-3102
Mfr. Part No.AP7333-33SAG-7
kr 2,918
Each (In a Pack of 50)
Units
- 300mA Linear Voltage 1 0.2 %/V ±2% 0.6 % Surface Mount Positive SOT-23 85µA 3 - Fixed
RS Stock No. 660-8013
Mfr. Part No.UA7815CKCS
kr 7,544
Each (In a Pack of 5)
Units
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Positive TO-220 - 3 - Fixed
RS Stock No. 620-0852
Mfr. Part No.REG1117-3.3
kr 22,526
Each (In a Pack of 5)
Units
- 800mA Low Dropout Voltage 1 7 mV ±1% 12 mV Surface Mount Positive SOT-223 4mA 3+Tab - Fixed
RS Stock No. 163-0954
Mfr. Part No.MC7808CDTT5G
kr 3,825
Each (On a Reel of 2500)
Units
- 2.2A Linear Voltage 1 32 mV - 35 mV Surface Mount Positive DPAK 8mA 3 - Fixed
RS Stock No. 769-5416
Mfr. Part No.SP6661EN-L
BrandMaxLinear
kr 15,005
Each (In a Pack of 2)
Units
- 200mA Charge Pump - - - - Surface Mount - SOIC - 8 - -
RS Stock No. 858-0712
Mfr. Part No.LT1963AES8#PBF
kr 48,485
Each (In a Pack of 2)
Units
- 1.5A Low Dropout Voltage 1 5 mV - 15 mV Surface Mount Positive SOIC 1mA 8 1.21V Adjustable
RS Stock No. 460-904
Mfr. Part No.LM340AT-5.0/NOPB
kr 14,416
Each (In a Pack of 5)
Units
- 2.4A Linear Voltage 1 0.01 % ±2% 0.3 % Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 918-1975
Mfr. Part No.L7812CV
kr 3,488
Each (In a Tube of 50)
Units
- 1.5A Linear Voltage 1 240 mV - 240 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 464-114
Mfr. Part No.MC78M12CDTG
kr 3,49
Each (In a Pack of 20)
Units
- 700mA Linear Voltage 1 50 mV - 240 mV Surface Mount Positive DPAK - 3 - Fixed
RS Stock No. 785-6958
Mfr. Part No.MC7812ABTG
kr 5,588
Each (In a Pack of 10)
Units
- 1A Linear Voltage 1 20 mV - 25 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 710-6313
Mfr. Part No.ZMR330FTA
kr 8,718
Each (In a Pack of 5)
Units
- 50mA Linear Voltage 1 15 mV - 30 mV Surface Mount Positive SOT-23 - 3 - Fixed
RS Stock No. 533-9347
Mfr. Part No.LM1084IT-ADJ/NOPB
kr 24,35
Each
Units
- 5A Low Dropout Voltage 1 0.2 % - 0.3 % Through Hole Positive TO-220 - 3 1.262V Adjustable
RS Stock No. 921-6894
Mfr. Part No.LM317AEMP/NOPB
kr 7,396
Each (On a Reel of 1000)
Units
- 1.5A Linear Voltage 1 0.01 %/V ±1% 0.5 % Surface Mount Positive SOT-223 - 3+Tab 1.27V Adjustable