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. 769-5539
Mfr. Part No.SPX3940T-L-3-3
BrandMaxLinear
kr 15,568
Each (In a Pack of 5)
Units
- 1A Low Dropout Voltage 1 1 % 1% 1.5 % Surface Mount Positive D2PAK (TO-263) 25mA 3 - Fixed
RS Stock No. 300-344
Mfr. Part No.CSR604A
kr 261,35
Each
Units
- 6A Linear Voltage - - - - Through Hole - - - 3 - Adjustable
RS Stock No. 922-3514
Mfr. Part No.UA7812CKCS
kr 5,994
Each (In a Tube of 50)
Units
- - - - - - - - - - - - - -
RS Stock No. 411-958
Mfr. Part No.LT1763CS8-3.3#PBF
kr 46,75
Each
Units
- 500mA Low Dropout Voltage 1 5 mV - 33 mV Surface Mount Positive SOIC 0.03mA 8 1.22V Fixed
RS Stock No. 298-8564
Mfr. Part No.L7824CV
kr 4,35
Each
Units
- 1.5A Linear Voltage 1 480 mV - 480 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS Stock No. 686-9164
Mfr. Part No.LE50ABZ-AP
kr 5,534
Each (In a Pack of 10)
Units
- 100mA Low Dropout Voltage 1 20 mV ±1% 15 mV Through Hole Positive TO-92 1.5mA 3 - Fixed
RS Stock No. 178-5056
Mfr. Part No.L7808ABD2T-TR
kr 3,016
Each (On a Reel of 1000)
Units
- - - - - - - - - - - - - -
RS Stock No. 121-6355
Mfr. Part No.MC7812ABTG
kr 5,588
Each (In a Tube of 50)
Units
- 1A Linear Voltage 1 20 mV - 25 mV Through Hole Positive TO-220 6mA 3 - Fixed
RS Stock No. 121-8966
Mfr. Part No.REG1117-3.3
kr 19,202
Each (In a Tube of 80)
Units
- 800mA Low Dropout Voltage 1 7 mV ±1% 12 mV Surface Mount Positive SOT-223 4mA 3+Tab - Fixed
RS Stock No. 100-5913
Mfr. Part No.LM1084IT-ADJ/NOPB
kr 20,554
Each (In a Tube of 45)
Units
- 5A Low Dropout Voltage 1 0.2 % - 0.3 % Through Hole Positive TO-220 - 3 1.262V Adjustable
RS Stock No. 761-5621
Mfr. Part No.LM317AEMP/NOPB
kr 16,35
Each (In a Pack of 5)
Units
- 1.5A Linear Voltage 1 0.01 %/V ±1% 0.5 % Surface Mount Positive SOT-223 - 3+Tab 1.27V Adjustable
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. 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. 761-8169
Mfr. Part No.LT1175IST-5#PBF
kr 64,47
Each
Units
- 500mA Low Dropout Voltage 1 0.015 %/V 2.5% 0.35 % Surface Mount Negative SOT-223 0.045mA 3+Tab - Fixed
RS Stock No. 170-4505
Mfr. Part No.SP6661EN-L
BrandMaxLinear
kr 14,277
Each (In a Tube of 98)
Units
- 200mA Charge Pump - - - - Surface Mount - SOIC - 8 - -
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. 922-8042
Mfr. Part No.ZMR330FTA
kr 3,439
Each (On a Reel of 3000)
Units
- 50mA Linear Voltage 1 15 mV - 30 mV Surface Mount Positive SOT-23 - 3 - Fixed
RS Stock No. 165-7750
Mfr. Part No.LD1117S33CTR
kr 1,084
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. 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. 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