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. 102-5768
Mfr. Part No.LP38692MP-5.0/NOPB
SGD1.449
Each (On a Reel of 1000)
units
- 1A Low Dropout Voltage 1 0.03 %/V ±2.5% 1.8 %/A Surface Mount Positive SOT-223 - 5+Tab - Fixed
RS Stock No. 185-8885
Mfr. Part No.NCV8163ASN330T1G
SGD0.637
Each (In a Pack of 15)
units
- 250mA Low Dropout Voltage 1 0.02 %/V ±3% 0.015 %/mA Surface Mount - TSOP 20µA 5 - Fixed
RS Stock No. 921-0596
Mfr. Part No.AP7335-33WG-7
SGD0.52
Each (In a Pack of 50)
units
- 300mA Low Dropout Voltage 1 0.2 %/V ±2% ±0.6 % Surface Mount Positive SOT-25 80µA 5 0.8V Fixed
RS Stock No. 533-9505
Mfr. Part No.LM1086IT-ADJ/NOPB
SGD2.97
Each
units
- 1.5A Low Dropout Voltage 1 0.2 % - 0.3 % Through Hole Positive TO-220 - 3 1.262V Adjustable
New
RS Stock No. 214-8860
Mfr. Part No.NCV8164ASN120T1G
SGD1.037
Each (In a Pack of 10)
units
- 300mA - 1 - ±2% - Surface Mount - TSOP-5 - 5 - Adjustable
RS Stock No. 165-4791
Mfr. Part No.MCP1726-1202E/SN
BrandMicrochip
SGD0.855
Each (In a Tube of 100)
units
- 1A Low Dropout Voltage 1 0.05 %/V ±2.5% 0.5 % Surface Mount Positive SOIC 0.14mA 8 - Fixed
RS Stock No. 121-8662
Mfr. Part No.TPS76333DBVT
SGD0.793
Each (On a Reel of 250)
units
- 150mA Low Dropout Voltage 1 0.07 %/V ±3% - Surface Mount Positive SOT-23 0.085mA 5 - Fixed
RS Stock No. 102-5755
Mfr. Part No.LM79L05ACM/NOPB
SGD1.082
Each (In a Tube of 95)
units
- 100mA Linear Voltage 1 0.07 %/V - 0.01 %/mA Surface Mount Negative SOIC 2mA 8 - Fixed
RS Stock No. 785-6891
Mfr. Part No.MC33269T-3.3G
SGD1.275
Each (In a Pack of 10)
units
- 800mA Low Dropout Voltage 1 0.3 % 1% 0.5 % Through Hole Positive TO-220 20mA 3 - Fixed
RS Stock No. 757-7190
Mfr. Part No.NCV4274AST33T3G
SGD2.15
Each (In a Pack of 2)
units
- 400mA Linear Voltage 1 25 mV 2% 30 mV Surface Mount Positive SOT-223 0.15mA 3+Tab - Fixed
RS Stock No. 686-9559
Mfr. Part No.L78L09ABZ
SGD0.44
Each (In a Pack of 50)
units
- 100mA Linear Voltage 1 225 mV - 80 mV Through Hole Positive TO-92 6mA 3 - Fixed
RS Stock No. 168-8712
Mfr. Part No.LDK220PU-R
SGD0.482
Each (On a Reel of 3000)
units
- 200mA Low Dropout Voltage 1 0.05 %/V ±2 mV, ±3 % 0.003 %/mA Surface Mount Positive DFN 100µA 6 1.19V Adjustable
RS Stock No. 669-5083
Mfr. Part No.MCP1825S-3302E/AB
BrandMicrochip
SGD1.354
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. 809-9985
Mfr. Part No.ADP122AUJZ-2.5-R7
SGD1.786
Each (On a Tape of 5)
units
- 300mA Low Dropout Voltage 1 0.05 %/V 1.5% 0.001 %/mA Surface Mount Positive TSOT 170µA 5 0.5V Fixed
New
RS Stock No. 204-3898
Mfr. Part No.TC1015-3.3VCT713
BrandMicrochip
SGD0.548
Each (In a Pack of 20)
units
- - - - - - - - - - - - - -
RS Stock No. 134-9547
Mfr. Part No.NCP163AMX330TBG
SGD0.528
Each (In a Pack of 25)
units
- 250mA Low Dropout Voltage 1 0.02 %/V ±2% 0.001 %/mA Surface Mount - XDFN 20µA 4 - Fixed
RS Stock No. 190-8033
Mfr. Part No.MAX8887EZK18+T
SGD3.386
Each (In a Pack of 5)
units
- 200mA Low Dropout Voltage 1 0.15 %/V ±2% - Surface Mount - SOT-23 - 5 - Adjustable
RS Stock No. 182-8325
Mfr. Part No.AP7383-44Y-13
SGD0.493
Each (In a Pack of 50)
units
- 150mA Low Dropout Voltage 1 0.05 %/V - 0.5 V Surface Mount Positive SOT-89 1.8µA 3 + Tab - Fixed
RS Stock No. 182-8322
Mfr. Part No.AP7384-50SA-7
SGD0.275
Each (In a Pack of 100)
units
- 50mA Low Dropout Voltage 1 0.05 %/V - 0.5 V Surface Mount Positive SOT-23 2.5µA 3 - Fixed
RS Stock No. 177-0719
Mfr. Part No.MIC47100YMME
BrandMicrochip
SGD3.07
Each (In a Pack of 5)
units
- 1A Low Dropout Voltage 1 0.05 %/V ±2% 0.5 % Surface Mount - MSOP - 8 0.71V Adjustable