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. 805-6474
Mfr. Part No.MC7806ACTG
MYR1.379
Each (In a Pack of 25)
units
- 2.2A Linear Voltage 1 15 mV - 25 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 145-3439
Mfr. Part No.MC7806ACTG
MYR2.456
Each (In a Tube of 50)
units
- 2.2A Linear Voltage 1 15 mV - 25 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 170-3507
Mfr. Part No.NCP508SQ18T1G
MYR0.623
Each (On a Reel of 3000)
units
- 50mA Low Dropout Voltage 1 20 mV ±3% 40 mV Surface Mount Positive SC-70 1µA 5 - Fixed
RS Stock No. 785-7232
Mfr. Part No.NCP508SQ18T1G
MYR1.963
Each (On a Tape of 20)
units
- 50mA Low Dropout Voltage 1 20 mV ±3% 40 mV Surface Mount Positive SC-70 1µA 5 - Fixed
RS Stock No. 163-0770
Mfr. Part No.NCV8664DT50RKG
MYR4.085
Each (On a Reel of 2500)
units
- 150mA Low Dropout Voltage 1 25 mV ±2% 35 mV Surface Mount Positive DPAK 30µA 3 1.3V Fixed
RS Stock No. 163-2414
Mfr. Part No.LM337BTG
MYR3.584
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 0.04 %/V - 1 % Through Hole Negative TO-220 - 3 -1.25V Adjustable
RS Stock No. 516-5269
Mfr. Part No.LM337BTG
MYR4.20
Each
units
- 1.5A Linear Voltage 1 0.04 %/V - 1 % Through Hole Negative TO-220 - 3 -1.25V Adjustable
RS Stock No. 170-3512
Mfr. Part No.MC34166TVG
MYR8.83
Each (In a Tube of 50)
units
Boost/Buck Controller, Inverting 3A Buck Boost Switching 1 3 mV, 5 mV, 23 mV - 2 mV, 3 mV, 4 mV Through Hole - TO-220 - 5 - Fixed
RS Stock No. 786-2439
Mfr. Part No.MC34166TVG
MYR12.845
Each (In a Pack of 2)
units
Boost/Buck Controller, Inverting 3A Buck Boost Switching 1 3 mV, 5 mV, 23 mV - 2 mV, 3 mV, 4 mV Through Hole - TO-220 - 5 - Fixed
RS Stock No. 124-1691
Mfr. Part No.LM350T
MYR3.359
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. 802-2121
Mfr. Part No.NCP1117DT33T5G
MYR1.974
Each (On a Tape of 25)
units
- 2.2A Low Dropout Voltage 1 4.5 mV ±1% 10 mV Surface Mount Positive DPAK 10mA 3 1.27V Fixed
RS Stock No. 773-7847
Mfr. Part No.NCP500SN33T1G
MYR1.71
Each (In a Pack of 10)
units
- 150mA Low Dropout Voltage 1 10 mV 2.5% 45 mV Surface Mount Positive TSOP 300µA 5 - Fixed
RS Stock No. 162-8988
Mfr. Part No.NCP1117DT33T5G
MYR0.804
Each (On a Reel of 2500)
units
- 2.2A Low Dropout Voltage 1 4.5 mV ±1% 10 mV Surface Mount Positive DPAK 10mA 3 1.27V Fixed
RS Stock No. 125-0053
Mfr. Part No.MC7824ACTG
MYR2.576
Each (In a Tube of 50)
units
- 1A Linear Voltage 1 28 mV - 25 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 145-5382
Mfr. Part No.KA317TU
MYR1.993
Each (In a Tube of 50)
units
- 2.2A - 1 0.04 %/V - 0.5 %/V Through Hole Positive TO-220 - 3 1.3V Adjustable
RS Stock No. 162-8989
Mfr. Part No.NCP1117DT50RKG
MYR0.856
Each (On a Reel of 2500)
units
- 2.2A Low Dropout Voltage 1 6 mV ±1% 15 mV Surface Mount Positive DPAK 10mA 3 1.27V Fixed
RS Stock No. 688-9231
Mfr. Part No.MC33269DTRK-3.3G
MYR3.355
Each (In a Pack of 2)
units
- 800mA Low Dropout Voltage 1 0.3 % ±1% 0.5 % Surface Mount Positive DPAK 5.5mA 3 - Fixed
RS Stock No. 162-9417
Mfr. Part No.MC78M06CTG
MYR2.476
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. 773-7841
Mfr. Part No.NCV33063AVDR2G
MYR6.395
Each (In a Pack of 2)
units
Boost/Buck Controller, Inverting 1.5A Buck Boost Switching 1 3 (Inverting) mV, 12 (Step Down) mV, 30 (Step Up) mV - 0.022 (Inverting) V, 3 (Step Down) mV, 10 (Step Up) mV Surface Mount - SOIC - 8 - Adjustable
RS Stock No. 785-7030
Mfr. Part No.MC78M06CTG
MYR2.455
Each (In a Pack of 10)
units
- 700mA Linear Voltage 1 50 mV - 120 mV Through Hole Positive TO-220 6mA 3 - Fixed