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. 102-8629
Mfr. Part No.L7815CV-DG
SGD0.746
Each (In a Tube of 50)
units
- 1.5A Linear Voltage 1 50 mV - 100 mV Through Hole - TO-220 6mA 3 - Fixed
RS Stock No. 686-9814
Mfr. Part No.L78M08CV
SGD0.769
Each (In a Pack of 25)
units
- 500mA Linear Voltage 1 100 mV - 160 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 533-9280
Mfr. Part No.LM1084IS-3.3/NOPB
SGD4.67
Each
units
- 5A Low Dropout Voltage 1 6 mV - 15 mV Surface Mount Positive D2PAK (TO-263) - 3 - Fixed
RS Stock No. 121-8740
Mfr. Part No.LM1084IS-3.3/NOPB
SGD3.99
Each (In a Tube of 45)
units
- 5A Low Dropout Voltage 1 6 mV - 15 mV Surface Mount Positive D2PAK (TO-263) - 3 - Fixed
RS Stock No. 536-1401
Mfr. Part No.LM78L12ACM/NOPB
SGD1.16
Each
units
- 100mA Linear Voltage 1 180 mV ±5% 100 mV Surface Mount Positive SOIC 3mA 8 - Fixed
RS Stock No. 858-0832
Mfr. Part No.LT1084CT-5#PBF
SGD15.66
Each
units
- 5A Low Noise LDO 1 10 mV - 35 mV Through Hole Positive TO-220 10mA 3 - Fixed
RS Stock No. 102-5754
Mfr. Part No.LM78L12ACM/NOPB
SGD1.007
Each (In a Tube of 95)
units
- 100mA Linear Voltage 1 180 mV ±5% 100 mV Surface Mount Positive SOIC 3mA 8 - Fixed
RS Stock No. 168-6611
Mfr. Part No.L78M08CV
SGD0.767
Each (In a Tube of 50)
units
- 500mA Linear Voltage 1 100 mV - 160 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 168-6062
Mfr. Part No.L7824CV
SGD0.794
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. 545-4929
Mfr. Part No.LT1173CN8-5#PBF
SGD9.45
Each
units
Boost/Buck Controller, Inverting, Non-Inverting 400mA Buck Boost Switching 1 0.4 %/V - - Through Hole - PDIP - 8 - Fixed
RS Stock No. 298-8564
Mfr. Part No.L7824CV
SGD0.91
Each
units
- 1.5A Linear Voltage 1 480 mV - 480 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 168-6065
Mfr. Part No.L78M12CV
SGD0.755
Each (In a Tube of 50)
units
- 500mA Linear Voltage 1 100 mV - 240 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 535-9408
Mfr. Part No.LM350T/NOPB
SGD2.982
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. 102-3530
Mfr. Part No.L78S05CV
SGD0.645
Each (In a Tube of 50)
units
- 2A Linear Voltage 1 100 mV - 100 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 124-6450
Mfr. Part No.BA17805FP-E2
BrandROHM
SGD0.749
Each (In a Pack of 10)
units
- 1A Linear Voltage 1 - ±4% 100 mV Surface Mount Positive TO-252 - 3 - Fixed
RS Stock No. 535-8641
Mfr. Part No.LM1117IMP-5.0/NOPB
SGD1.806
Each (In a Pack of 5)
units
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS Stock No. 102-5710
Mfr. Part No.LM350T/NOPB
SGD3.56
Each (In a Tube of 45)
units
- 3A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.3V Adjustable
RS Stock No. 102-5681
Mfr. Part No.LM1117IMP-5.0/NOPB
SGD0.771
Each (On a Reel of 1000)
units
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS Stock No. 714-7780
Mfr. Part No.L78S05CV
SGD1.00
Each (In a Pack of 10)
units
- 2A Linear Voltage 1 100 mV - 100 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 165-7426
Mfr. Part No.LD1117DT33TR
SGD0.21
Each (On a Reel of 2500)
units
- 1.3A Low Dropout Voltage 1 6 mV ±1% 10 mV Surface Mount Positive DPAK 5mA 3 - Fixed