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 which require a particular voltage input. For example, a processor. Input voltage, output voltage and output current are all important things to consider when choosing an 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 which 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. 165-4039
Mfr. Part No.MIC5219-3.3YM5-TR
BrandMicrochip
R 11.037
Each (On a Reel of 3000)
units
- 500mA Low Dropout Voltage 1 0.1 %/V ±2% 0.7 % Surface Mount Positive SOT-23 8µA 5 - Fixed
RS stock no. 910-1685
Mfr. Part No.MIC5219-3.3YM5-TR
BrandMicrochip
R 31.702
Each (In a Pack of 5)
units
- 500mA Low Dropout Voltage 1 0.1 %/V ±2% 0.7 % Surface Mount Positive SOT-23 8µA 5 - Fixed
RS stock no. 887-7429
Mfr. Part No.MCP1700T-3302E/TT
BrandMicrochip
R 4.586
Each (On a Reel of 3000)
units
- 250mA Low Dropout Voltage 1 0.75 %/V ±2% 1 % Surface Mount Positive SOT-23 0.0016mA 3 - Fixed
RS stock no. 698-9044
Mfr. Part No.MCP1700T-3302E/TT
BrandMicrochip
R 12.69
Each
units
- 250mA Low Dropout Voltage 1 0.75 %/V ±2% 1 % Surface Mount Positive SOT-23 0.0016mA 3 - Fixed
RS stock no. 770-9524
Mfr. Part No.MCP1703T-3302E/MB
BrandMicrochip
R 12.439
Each (In a Pack of 10)
units
- 250mA Low Dropout Voltage 1 0.3 %/V 2% 2.5 % Surface Mount Positive SOT-89 5µA 3 - Fixed
RS stock no. 912-2916
Mfr. Part No.MCP1703T-3302E/MB
BrandMicrochip
R 6.839
Each (On a Reel of 1000)
units
- 250mA Low Dropout Voltage 1 0.3 %/V 2% 2.5 % Surface Mount Positive SOT-89 5µA 3 - Fixed
RS stock no. 912-6993
Mfr. Part No.TCM828ECT713
BrandMicrochip
R 5.024
Each (On a Reel of 3000)
units
- 25mA Charge Pump - - - - Surface Mount - SOT-23 - 5 - -
RS stock no. 910-1408
Mfr. Part No.MIC29502WT
BrandMicrochip
R 122.48
Each
units
- 5A Low Dropout Voltage 1 0.5 % ±1% 1 % Through Hole Positive TO-220 - 5 1.252V Adjustable
RS stock no. 165-4193
Mfr. Part No.MIC29502WT
BrandMicrochip
R 101.375
Each (In a Tube of 50)
units
- 5A Low Dropout Voltage 1 0.5 % ±1% 1 % Through Hole Positive TO-220 - 5 1.252V Adjustable
RS stock no. 669-5178
Mfr. Part No.MCP1826S-3302E/DB
BrandMicrochip
R 11.532
Each (In a Pack of 5)
units
- 1A Low Dropout Voltage 1 0.05 %/V ±2% 0.5 % Surface Mount Positive SOT-223 0.12mA 3+Tab - Fixed
RS stock no. 770-9486
Mfr. Part No.MCP1703A-3302E/DB
BrandMicrochip
R 10.327
Each (In a Pack of 6)
units
- 250mA Low Dropout Voltage 1 0.3 %/V 2% 2.5 % Surface Mount Positive SOT-223 5µA 3 - Fixed
RS stock no. 146-0191
Mfr. Part No.MCP1703A-3302E/DB
BrandMicrochip
R 8.665
Each (In a Tube of 78)
units
- 250mA Low Dropout Voltage 1 0.3 %/V 2% 2.5 % Surface Mount Positive SOT-223 5µA 3 - Fixed
RS stock no. 889-6042
Mfr. Part No.MCP1826S-3302E/DB
BrandMicrochip
R 9.619
Each (In a Tube of 78)
units
- 1A Low Dropout Voltage 1 0.05 %/V ±2% 0.5 % Surface Mount Positive SOT-223 0.12mA 3+Tab - Fixed
RS stock no. 165-4712
Mfr. Part No.MCP1825S-3302E/AB
BrandMicrochip
R 11.489
Each (In a Tube of 50)
units
- 500mA Low Dropout Voltage 1 0.05 %/V ±0.5% 0.5 % Through Hole Positive TO-220 0.12mA 3 - Fixed
RS stock no. 669-5083
Mfr. Part No.MCP1825S-3302E/AB
BrandMicrochip
R 13.64
Each (In a Pack of 5)
units
- 500mA Low Dropout Voltage 1 0.05 %/V ±0.5% 0.5 % Through Hole Positive TO-220 0.12mA 3 - Fixed
RS stock no. 889-5250
Mfr. Part No.MCP1703T-3302E/CB
BrandMicrochip
R 6.714
Each (On a Reel of 3000)
units
- 250mA Low Dropout Voltage 1 0.1 %/V ±2% 1 % Surface Mount Positive SOT-23A 0.002mA 3 - Fixed
RS stock no. 669-4907
Mfr. Part No.MCP1703T-3302E/CB
BrandMicrochip
R 8.873
Each (In a Pack of 10)
units
- 250mA Low Dropout Voltage 1 0.1 %/V ±2% 1 % Surface Mount Positive SOT-23A 0.002mA 3 - Fixed
RS stock no. 165-4199
Mfr. Part No.MIC29302WT
BrandMicrochip
R 29.96
Each (In a Tube of 50)
units
- 3A Low Dropout Voltage 1 0.5 % ±1% 1 % Through Hole Positive TO-220 - 5 1.252V Adjustable
RS stock no. 669-4995
Mfr. Part No.MCP1824T-1802E/OT
BrandMicrochip
R 7.06
Each (In a Pack of 5)
units
- 300mA Low Dropout Voltage 1 0.05 %/V ±2.5% 0.5 % Surface Mount Positive SOT-23 0.12mA 5 - Fixed
RS stock no. 669-4945
Mfr. Part No.MCP1802T-3002I/OT
BrandMicrochip
R 8.866
Each (In a Pack of 5)
units
- 300mA Low Dropout Voltage 1 0.2 %/V ±2% 100 mV Surface Mount Positive SOT-23 0.025mA 5 - Fixed