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. 535-9408
Mfr. Part No.LM350T/NOPB
MYR8.452
Each (In a Pack of 5)
units
- 3A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.3V Adjustable
RS Stock No. 661-4501
Mfr. Part No.TPS79601KTTT
MYR20.44
Each
units
- 1A Low Dropout Voltage 1 0.05 %/V ±2% 5 mV Surface Mount Positive D2PAK (TO-263) 0.265mA 5 1.225V Adjustable
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. 165-6864
Mfr. Part No.LD1086D2M33TR
MYR2.245
Each (On a Reel of 1000)
units
- 1.5A Low Dropout Voltage 1 6 mV ±1% 10 mV Surface Mount Positive D2PAK 10mA 3 - Fixed
RS Stock No. 177-7116
Mfr. Part No.ICL7660ACBAZA
MYR6.878
Each (In a Tube of 98)
units
- - Charge Pump - - - - Surface Mount - SOIC - 8 - -
RS Stock No. 922-3527
Mfr. Part No.UA78M05IDCY
MYR2.531
Each (In a Tube of 80)
units
- - - - - - - - - - - - - -
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. 889-5938
Mfr. Part No.MCP1703T-5002E/CB
BrandMicrochip
MYR2.125
Each (On a Reel of 3000)
units
- 250mA Low Dropout Voltage 1 0.3 %/V ±2% 2.5 % Surface Mount Positive SOT-23A 5µA 3 - Fixed
RS Stock No. 162-4757
Mfr. Part No.LM79L12ACZ/NOPB
MYR1.584
Each (In a Box of 1800)
units
- 100mA Linear Voltage 1 0.07 %/V - 0.01 %/mA Through Hole Negative TO-92 2mA 3 - Fixed
RS Stock No. 661-6730
Mfr. Part No.UA78M05IDCY
MYR2.866
Each (In a Pack of 5)
units
- 500mA Linear Voltage 1 100 mV - 100 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS Stock No. 100-0719
Mfr. Part No.LM338T/NOPB
MYR8.274
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
MYR9.724
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. 829-3266
Mfr. Part No.LR8N3-G
BrandMicrochip
MYR2.72
Each (In a Pack of 10)
units
- 30mA Linear Voltage 1 0.01 %/V ±5% 3 % Through Hole Positive TO-92 - 3 - Adjustable
RS Stock No. 124-6446
Mfr. Part No.BA033CC0T
BrandROHM
MYR7.704
Each (In a Pack of 5)
units
- 1A Low Dropout Voltage 1 100 mV - 150 mV Through Hole Positive TO-220FP - 3 - Fixed
RS Stock No. 124-6450
Mfr. Part No.BA17805FP-E2
BrandROHM
MYR2.787
Each (In a Pack of 10)
units
- 1A Linear Voltage 1 - ±4% 100 mV Surface Mount Positive TO-252 - 3 - Fixed
RS Stock No. 168-7733
Mfr. Part No.LD1085V
MYR5.208
Each (In a Tube of 50)
units
- 3A Low Dropout Voltage 1 0.2 % ±1% 0.3 % Through Hole Positive TO-220 - 3 1.225 → 1.275V Adjustable
RS Stock No. 168-6804
Mfr. Part No.LD1117S33TR
MYR0.999
Each (On a Reel of 2500)
units
- 1.3A Low Dropout Voltage 1 6 mV ±1% 10 mV Surface Mount Positive SOT-223 5mA 3+Tab - 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. 775-7450
Mfr. Part No.MCP1703T-5002E/CB
BrandMicrochip
MYR2.625
Each (On a Reel of 10)
units
- 250mA Low Dropout Voltage 1 0.3 %/V ±2% 2.5 % Surface Mount Positive SOT-23A 5µA 3 - Fixed
RS Stock No. 772-6645
Mfr. Part No.UPC1093T-E1-AZ
MYR2.238
Each (On a Reel of 15)
units
- 150mA Linear Voltage 1 - ±2% - Surface Mount Positive SOT-89 - 3 2.495V Adjustable