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. 660-7975
Mfr. Part No.TLV1117-33CDCY
MYR6.71
Each
units
- 800mA Low Dropout Voltage 1 0.2 % - 0.4 % Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS Stock No. 170-4437
Mfr. Part No.SP6205EM5-L/TR
BrandMaxLinear
MYR1.28
Each (On a Reel of 2500)
units
- 500mA Low Dropout Voltage 1 0.3 %/V ±2% 0.5 % Surface Mount Positive SOT-23 0.045mA 5 1.275V Adjustable
RS Stock No. 188-9195
Mfr. Part No.L78M08CDT-TR
MYR0.883
Each (On a Reel of 2500)
units
- 500mA Linear Voltage 1 100 mV - 100 mV Surface Mount Positive DPAK 6mA 2 + Tab - Fixed
RS Stock No. 168-6515
Mfr. Part No.L4931ABD50-TR
MYR1.639
Each (On a Reel of 2500)
units
- 250mA Low Dropout Voltage 1 17.5 mV ±1% 15 mV Surface Mount Positive SOIC 0.6mA 8 - Fixed
RS Stock No. 184-4303
Mfr. Part No.MC79M08BDTG
MYR2.06
Each (In a Tube of 75)
units
- 500mA Linear Voltage 1 80 mV - 100 mV Surface Mount Negative DPAK - 3 - Fixed
RS Stock No. 168-8697
Mfr. Part No.LD39130SJ10R
MYR1.899
Each (On a Reel of 5000)
units
- - Low Dropout Voltage 1 0.5 %/V ±2 %, ±30 mV 0.004 (Typical) %/mA, 1.5 % Surface Mount Positive Flip-Chip 55µA 4 - Fixed
RS Stock No. 533-5597
Mfr. Part No.LM2936M-5.0/NOPB
MYR10.07
Each
units
- 50mA Low Dropout Voltage 1 30 mV ±2% 30 mV Surface Mount Positive SOIC N - 8 - Fixed
RS Stock No. 191-3353
Mfr. Part No.MAX8512EXK+T
MYR5.01
Each (In a Pack of 10)
units
- 120mA Linear Voltage 1 0.001 (Typ.) μV/V ±3% 0.003 (Typ.) %/mA Surface Mount - SC-70 90µA 5 - Adjustable
RS Stock No. 188-9191
Mfr. Part No.L6986TR
MYR6.171
Each (On a Reel of 2500)
units
- 2A Linear Voltage 1 - - - Surface Mount Negative HTSSOP 100µA 16 - Adjustable
RS Stock No. 779-9401
Mfr. Part No.LT1761ES5-2.5#TRMPBF
MYR10.598
Each (In a Pack of 5)
units
- 100mA Low Dropout Voltage 1 10 mV - 80 mV Surface Mount Positive TSOT-23 20µA 5 - Fixed
RS Stock No. 751-3102
Mfr. Part No.AP7333-33SAG-7
MYR1.355
Each (In a Pack of 50)
units
- 300mA Linear Voltage 1 0.2 %/V ±2% 0.6 % Surface Mount Positive SOT-23 85µA 3 - Fixed
RS Stock No. 197-7376
Mfr. Part No.LP3985IM5-3.3/NOPB
MYR2.708
Each (In a Pack of 25)
units
- 150mA Low Dropout Voltage 1 - ±3% - - - SOT-23 - 5 - Fixed
RS Stock No. 206-0218
Mfr. Part No.AP7370-18W5-7
MYR0.579
Each (On a Reel of 3000)
units
- 500mA Low Dropout Voltage 1 - ±2% - Surface Mount - SOT - 5 - Fixed
RS Stock No. 651-6107
Mfr. Part No.LP2985AIM5-3.0/NOPB
MYR3.66
Each
units
- 150mA Low Dropout Voltage 1 0.014 %/V ±2.5% - Surface Mount Positive SOT-23 - 5 - Fixed
RS Stock No. 162-6336
Mfr. Part No.LP38690SD-3.3/NOPB
MYR5.646
Each (On a Reel of 1000)
units
- 1A Low Dropout Voltage 1 0.1 %/V 2.5% 5 %/A Surface Mount Positive LLP 0.1mA 6 - Fixed
RS Stock No. 182-6812
Mfr. Part No.AP7384-50V-A
MYR0.439
Each (On a Reel of 2000)
units
- 50mA Low Dropout Voltage 1 0.05 %/V - 0.5 V Through Hole Positive TO-92 2.5µA 3 - Fixed
RS Stock No. 168-6610
Mfr. Part No.L7808ABV
MYR1.796
Each (In a Tube of 50)
units
- 1A Linear Voltage 1 80 mV 2% 100 mV Through Hole Positive TO-220 4.3mA 3 - Fixed
RS Stock No. 167-7524
Mfr. Part No.BA33BC0FP-E2
BrandROHM
MYR3.486
Each (In a Pack of 10)
units
- 1A Low Dropout Voltage 1 35 mV ±2% 75 mV Surface Mount Positive TO-252 - 3 - Fixed
RS Stock No. 160-4563
Mfr. Part No.ADP121-ACBZ165R7
MYR2.567
Each (On a Reel of 3000)
units
- 150mA Low Dropout Voltage 1 ±0.03 %/V ±3% 0.005 %/mA Surface Mount Positive WLCSP 30µA 4 0.8V Fixed
RS Stock No. 162-4905
Mfr. Part No.TPS73101DBVT
MYR3.182
Each (On a Reel of 250)
units
- 150mA Low Dropout Voltage 1 0.01 %/V ±0.5% 0.002 %/mA Surface Mount Positive SOT-23 <0.001mA 5 1.2V Adjustable