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. 762-0392
Mfr. Part No.TPS7A4101DGNT
kr 10,762
Each (In a Pack of 5)
Units
- 50mA Low Dropout Voltage 1 0.03 %/V 2.5% 0.31 %/V Surface Mount Positive MSOP 0.025mA 8 1.173V Adjustable
New
RS Stock No. 210-5527
Mfr. Part No.MAX38886ATD+
kr 27,476
Each (In a Pack of 5)
Units
Buck-Boost 2.5A - 1 - - - - - TDFN - 14 - Selectable
RS Stock No. 184-7536
Mfr. Part No.BD90GA3MEFJ-ME2
BrandROHM
kr 7,936
Each (In a Pack of 10)
Units
- 300mA Low Dropout Voltage 1 50 mV ±1% 75 mV Surface Mount - HTSOP - 8 - Fixed
RS Stock No. 191-6825
Mfr. Part No.MAX1044ESA+
kr 30,33
Each (In a Pack of 2)
Units
- 0.02 (Typ.)A Linear Voltage 1 - - - Surface Mount Negative SO - 8 - -
RS Stock No. 669-4866
Mfr. Part No.MCP1701AT-5002I/CB
BrandMicrochip
kr 8,556
Each (In a Pack of 10)
Units
- 250mA Low Dropout Voltage 1 0.3 %/V ±2% 1.6 % Surface Mount Positive SOT-23A 0.002mA 3 - Fixed
RS Stock No. 145-6954
Mfr. Part No.UA78L15ACPK
kr 1,05
Each (On a Reel of 1000)
Units
- 100mA Linear Voltage 1 300 mV ±5% 150 mV Surface Mount Positive SOT-89 - 3 - Fixed
RS Stock No. 545-6593
Mfr. Part No.LT1121IST-5#PBF
kr 49,14
Each
Units
- 150mA Low Dropout Voltage 1 10 mV - -35 mV Surface Mount Positive SOT-223 0.03mA 3+Tab - Fixed
RS Stock No. 688-9200
Mfr. Part No.LM317BD2TR4G
kr 7,34
Each (In a Pack of 2)
Units
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 % Surface Mount Positive D2PAK - 3 1.3V Adjustable
RS Stock No. 884-7002
Mfr. Part No.LTC3245IDE#PBF
kr 67,62
Each (In a Pack of 2)
Units
- 250mA Charge Pump - - - - Surface Mount - DFN - 12 - -
RS Stock No. 829-4373
Mfr. Part No.LD1117DT12CTR
kr 4,185
Each (In a Pack of 10)
Units
- 800mA Low Dropout Voltage 1 1 % - 1 % Surface Mount Positive DPAK - 3 1.25V Fixed
RS Stock No. 751-5174
Mfr. Part No.ZLDO1117G25TA
kr 3,535
Each (In a Pack of 25)
Units
- 1A Linear Voltage 1 0.2 % 2% 10 mV Surface Mount Positive SOT-223 10mA 3+Tab 1.25V Fixed
RS Stock No. 168-6607
Mfr. Part No.L7815ABV
kr 3,84
Each (In a Tube of 50)
Units
- 1A Linear Voltage 1 150 mV 2% 100 mV Through Hole Positive TO-220 4.4mA 3 - Fixed
RS Stock No. 196-1458
Mfr. Part No.LDF33DT-TR
kr 7,208
Each (In a Pack of 10)
Units
- 1A Low Dropout Voltage 1 0.04 % 2% 0.6 %/A Through Hole Positive DPAK 800µA 3 0.8V Adjustable, Fixed
RS Stock No. 517-1371
Mfr. Part No.TPS76350DBVT
kr 8,718
Each (In a Pack of 5)
Units
- 150mA Low Dropout Voltage 1 0.07 %/V ±3% - Surface Mount Positive SOT-23 0.085mA 5 - Fixed
RS Stock No. 196-1457
Mfr. Part No.LDF33DT-TR
kr 3,028
Each (On a Reel of 2500)
Units
- 1A Low Dropout Voltage 1 0.04 % 2% 0.6 %/A Through Hole Positive DPAK 800µA 3 0.8V Adjustable, Fixed
New
RS Stock No. 218-4516
Mfr. Part No.LM317LMX/NOPB
kr 7,594
Each (In a Pack of 25)
Units
- 100mA - 4 0.01 %/V - 0.1 %/A - - SOIC - 8 - Adjustable
RS Stock No. 145-8978
Mfr. Part No.MCP1827S-3302E/EB
BrandMicrochip
kr 8,784
Each (In a Tube of 50)
Units
- 1.5A Low Dropout Voltage 1 0.16 %/V ±2% 1 % Surface Mount Positive D2PAK 0.22mA 3 - Fixed
New
RS Stock No. 218-4515
Mfr. Part No.LM317LMX/NOPB
kr 3,24
Each (On a Reel of 2500)
Units
- 100mA - 4 0.01 %/V - 0.1 %/A - - SOIC - 8 - Adjustable
RS Stock No. 2508962293
Mfr. Part No.NTE1914
kr 77,64
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 2508962653
Mfr. Part No.NTE935
kr 150,12
Each
Units
- - - - - - - - - - - - - -