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. 100-0719
Mfr. Part No.LM338T/NOPB
PHP97.24
Each (In a Tube of 45)
units
- 5A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.29V Adjustable
RS Stock No. 460-900
Mfr. Part No.LM338T/NOPB
PHP122.31
Each (In a Pack of 5)
units
- 5A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.29V Adjustable
RS Stock No. 533-3901
Mfr. Part No.LM2623MM/NOPB
PHP85.92
Each
units
- 2A Charge Pump - - - - Surface Mount - MSOP - 8 - -
RS Stock No. 920-3615
Mfr. Part No.LM2623MM/NOPB
PHP44.503
Each (On a Reel of 1000)
units
- 2A Charge Pump - - - - Surface Mount - MSOP - 8 - -
RS Stock No. 809-5407
Mfr. Part No.TLV1117-33IDCY
PHP38.535
Each (In a Pack of 20)
units
- 800mA Low Dropout Voltage 1 6 mV - 10 mV Surface Mount Positive SOT-223 15mA 3+Tab 3.432V Fixed
RS Stock No. 922-3397
Mfr. Part No.TLV1117-33IDCYR
PHP155.069
Each (On a Reel of 2500)
units
- - - - - - - - - - - - - -
RS Stock No. 145-0932
Mfr. Part No.TLV1117-33IDCY
PHP38.535
Each (In a Tube of 80)
units
- 800mA Low Dropout Voltage 1 6 mV - 10 mV Surface Mount Positive SOT-223 15mA 3+Tab 3.432V Fixed
RS Stock No. 661-3778
Mfr. Part No.TLV1117-33IDCYR
PHP160.674
Each (In a Pack of 5)
units
- 800mA Low Dropout Voltage 1 0.2 % - 0.4 % Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS Stock No. 761-6699
Mfr. Part No.LP3982IMM-1.8/NOPB
PHP35.50
Each (On a Tape of 5)
units
- 300mA Low Dropout Voltage 1 0.1 %/V ±3% 0.002 %/mA Surface Mount Positive MSOP 0.09mA 8 - Fixed
RS Stock No. 162-6343
Mfr. Part No.LP3982IMM-1.8/NOPB
PHP16.183
Each (On a Reel of 1000)
units
- 300mA Low Dropout Voltage 1 0.1 %/V ±3% 0.002 %/mA Surface Mount Positive MSOP 0.09mA 8 - Fixed
RS Stock No. 533-8209
Mfr. Part No.LM317T/NOPB
PHP160.31
Each
units
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.25V Adjustable
RS Stock No. 100-5905
Mfr. Part No.LM317T/NOPB
PHP153.812
Each (In a Tube of 45)
units
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.25V Adjustable
RS Stock No. 661-6709
Mfr. Part No.UA78L05ACD
PHP20.289
Each (In a Pack of 10)
units
- 100mA Linear Voltage 1 150 mV ±5% 60 mV Surface Mount Positive SOIC - 8 - Fixed
RS Stock No. 527-974
Mfr. Part No.UA78L05ACDR
PHP21.304
Each (In a Pack of 25)
units
- 100mA Linear Voltage 1 150 mV ±5% 60 mV Surface Mount Positive SOIC - 8 - Fixed
RS Stock No. 145-7597
Mfr. Part No.LP2950CDT-5.0/NOPB
PHP62.769
Each (In a Tube of 75)
units
- 100mA Low Dropout Voltage 1 0.2 % - 0.2 % Surface Mount Positive TO-252 0.075mA 3 - Fixed
RS Stock No. 761-6466
Mfr. Part No.LP2950CDT-5.0/NOPB
PHP68.944
Each (In a Pack of 5)
units
- 100mA Low Dropout Voltage 1 0.2 % - 0.2 % Surface Mount Positive TO-252 0.075mA 3 - Fixed
RS Stock No. 121-9161
Mfr. Part No.UA78M05CDCY
PHP29.736
Each (In a Tube of 80)
units
- 500mA Linear Voltage 1 100 mV - 100 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS Stock No. 102-5717
Mfr. Part No.LM78L05ACZ/NOPB
PHP16.055
Each (On a Reel of 1800)
units
- 100mA Linear Voltage 1 75 mV ±5% 60 mV Through Hole Positive TO-92 3mA 3 - Fixed
RS Stock No. 535-8613
Mfr. Part No.LM1117IDT-3.3/NOPB
PHP80.262
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. 661-6721
Mfr. Part No.UA78M05CDCY
PHP33.642
Each (In a Pack of 5)
units
- 500mA Linear Voltage 1 100 mV - 100 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed