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. 122-3379
Mfr. Part No.AZ1117CH-3.3TRG1
SGD0.11
Each (On a Reel of 4000)
units
- 800mA Low Dropout Voltage 1 10 mV ±1% 15 mV Surface Mount Positive SOT-223 6mA 3+Tab - Fixed
RS Stock No. 828-7609
Mfr. Part No.AZ1117CH-3.3TRG1
SGD0.434
Each (In a Pack of 50)
units
- 800mA Low Dropout Voltage 1 10 mV ±1% 15 mV Surface Mount Positive SOT-223 6mA 3+Tab - Fixed
RS Stock No. 122-3358
Mfr. Part No.AP2204K-ADJTRG1
SGD0.161
Each (On a Reel of 3000)
units
- 150mA Low Dropout Voltage 1 0.05 % - 0.5 % Surface Mount Positive SOT-23 50µA 5 1.24V Adjustable
RS Stock No. 922-8285
Mfr. Part No.AP1117E33G-13
SGD0.194
Each (On a Reel of 2500)
units
- 1A Linear Voltage 1 0.2 % - 33 mV Surface Mount Positive SOT-223 10mA 3+Tab - Fixed
RS Stock No. 828-7404
Mfr. Part No.AP2204K-ADJTRG1
SGD0.502
Each (In a Pack of 50)
units
- 150mA Low Dropout Voltage 1 0.05 % - 0.5 % Surface Mount Positive SOT-23 50µA 5 1.24V Adjustable
RS Stock No. 751-2890
Mfr. Part No.AP1117E33G-13
SGD0.521
Each (In a Pack of 50)
units
- 1A Linear Voltage 1 0.2 % - 33 mV Surface Mount Positive SOT-223 10mA 3+Tab - Fixed
RS Stock No. 828-7570
Mfr. Part No.AZ1084CD-3.3TRG1
SGD0.69
Each (In a Pack of 20)
units
- 5A Low Dropout Voltage 1 6 mV - 20 mV Surface Mount Positive TO-252 10mA 3 1.25V Fixed
RS Stock No. 170-8927
Mfr. Part No.AZ1084CD-3.3TRG1
SGD0.267
Each (On a Reel of 2500)
units
- 5A Low Dropout Voltage 1 6 mV - 20 mV Surface Mount Positive TO-252 10mA 3 1.25V Fixed
RS Stock No. 165-8340
Mfr. Part No.AZ1117CH-5.0TRG1
SGD0.121
Each (On a Reel of 4000)
units
- 300mA Low Dropout Voltage 1 10 mV ±1% 15 mV Surface Mount Positive SOT-223 6mA 3+Tab - Fixed
RS Stock No. 921-0688
Mfr. Part No.AZ1117CH-5.0TRG1
SGD0.424
Each (In a Pack of 50)
units
- 300mA Low Dropout Voltage 1 10 mV ±1% 15 mV Surface Mount Positive SOT-223 6mA 3+Tab - Fixed
RS Stock No. 828-3528
Mfr. Part No.AP2114H-3.3TRG1
SGD0.44
Each (In a Pack of 50)
units
- 1 (Min)A Low Dropout Voltage 1 0.1 %/V ±1.5% 1 %/A Surface Mount Positive SOT-223 90µA 3+Tab - Fixed
RS Stock No. 122-3375
Mfr. Part No.AS78L05MTR-G1
SGD0.13
Each (On a Reel of 4000)
units
- 100mA Linear Voltage 1 150 mV ±5% 60 mV Surface Mount Positive SOIC 5.5mA 8 - Fixed
RS Stock No. 146-0950
Mfr. Part No.AZ1117H-3.3TRE1
SGD0.148
Each (On a Reel of 4000)
units
- 1A Low Dropout Voltage 1 6 mV 1% 10 mV Surface Mount Positive SOT-223 10mA 3+Tab - Fixed
RS Stock No. 121-9647
Mfr. Part No.AP2112K-3.3TRG1
SGD0.151
Each (On a Reel of 3000)
units
- - Low Dropout Voltage 1 0.1 %/V ±1.5% 1 %/A Surface Mount Positive SOT-23 80µA 5 - Fixed
RS Stock No. 122-3376
Mfr. Part No.AS78L15RTR-G1
SGD0.145
Each (On a Reel of 1000)
units
- 100mA Linear Voltage 1 250 mV ±5% 150 mV Surface Mount Positive SOT-89 6mA 3 - Fixed
RS Stock No. 921-0701
Mfr. Part No.AZ1117H-3.3TRE1
SGD0.476
Each (In a Pack of 50)
units
- 1A Low Dropout Voltage 1 6 mV 1% 10 mV Surface Mount Positive SOT-223 10mA 3+Tab - Fixed
RS Stock No. 122-3393
Mfr. Part No.AZ1117H-5.0TRE1
SGD0.148
Each (On a Reel of 4000)
units
- 1A Linear Voltage 1 10 mV ±1% 15 mV Surface Mount Positive SOT-223 10mA 3+Tab - Fixed
RS Stock No. 751-3045
Mfr. Part No.AP7311-33WG-7
SGD0.502
Each (In a Pack of 50)
units
- 150mA Linear Voltage 1 0.2 %/V ±2% 0.6 % Surface Mount Positive SOT-25 85µA 5 - Fixed
RS Stock No. 828-7561
Mfr. Part No.AS78L15RTR-G1
SGD0.42
Each (In a Pack of 50)
units
- 100mA Linear Voltage 1 250 mV ±5% 150 mV Surface Mount Positive SOT-89 6mA 3 - Fixed
RS Stock No. 828-7567
Mfr. Part No.AS78L12RTR-G1
SGD0.42
Each (In a Pack of 50)
units
- 100mA Linear Voltage 1 250 mV ±5% 100 mV Surface Mount Positive SOT-89 6mA 3 - Fixed