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庫存編號 714-0792
製造零件編號LM317T
HK$6.13
/個 (每包:10個)
單位
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 %, 0.5 %Vo, 25 mV%/Vo Through Hole Positive TO-220 - 3 1.25V Adjustable
RS庫存編號 168-6809
製造零件編號LM317T
HK$4.431
毎管:50 個
單位
- 1.5A Linear Voltage 1 0.04 %/V - 0.5 %, 0.5 %Vo, 25 mV%/Vo Through Hole Positive TO-220 - 3 1.25V Adjustable
RS庫存編號 298-8621
製造零件編號L7915CV
HK$7.06
單位
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Negative TO-220 3mA 3 - Fixed
RS庫存編號 168-6067
製造零件編號L7915CV
HK$4.61
毎管:50 個
單位
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Negative TO-220 3mA 3 - Fixed
RS庫存編號 298-8558
製造零件編號L7815CV
HK$5.91
單位
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 168-6061
製造零件編號L7815CV
HK$3.99
毎管:50 個
單位
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 918-1971
製造零件編號L7805CV
HK$5.226
毎管:50 個
單位
- 1.5A Linear Voltage 1 100 mV - 100 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 714-0697
製造零件編號LD1117S33TR
HK$6.633
/個 (每包:10個)
單位
- 1.3A Low Dropout Voltage 1 6 mV ±1% 10 mV Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS庫存編號 168-6804
製造零件編號LD1117S33TR
HK$1.60
個 (在毎卷:2500)
單位
- 1.3A Low Dropout Voltage 1 6 mV ±1% 10 mV Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS庫存編號 298-8564
製造零件編號L7824CV
HK$3.10
單位
- 1.5A Linear Voltage 1 480 mV - 480 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 102-9429
製造零件編號L7805CV-DG
HK$4.773
毎管:50 個
單位
- 1.5A Linear Voltage 1 50 mV - 100 mV Through Hole - TO-220 6mA 3 - Fixed
RS庫存編號 178-5183
製造零件編號L78L15ACZ
HK$0.984
個 (在毎卷:2500)
單位
- - - - - - - - - - - - - -
RS庫存編號 686-9331
製造零件編號LD1117AS12TR
HK$5.324
/個 (每包:25個)
單位
- 1.2A Low Dropout Voltage 1 6 mV ±2% 10 mV Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS庫存編號 189-1015
製造零件編號LM217T
HK$7.88
單位
- 1.5A Linear Voltage 1 0.02 %/V - 0.3 % Through Hole Positive TO-220 - 3 1.3V Adjustable
RS庫存編號 714-7774
製造零件編號L78L15ACZ
HK$2.541
/個 (每包:50個)
單位
- 100mA - 1 300 mV ±5% 150 mV Through Hole Positive TO-92 6.5mA 3 - Fixed
RS庫存編號 793-1346
製造零件編號L7805CV-DG
HK$5.656
/個 (每包:10個)
單位
- 1.5A Linear Voltage 1 50 mV - 100 mV Through Hole - TO-220 6mA 3 - Fixed
RS庫存編號 168-6062
製造零件編號L7824CV
HK$3.507
毎管:50 個
單位
- 1.5A Linear Voltage 1 480 mV - 480 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 165-7739
製造零件編號LD1117AS12TR
HK$2.678
個 (在毎卷:2500)
單位
- 1.2A Low Dropout Voltage 1 6 mV ±2% 10 mV Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS庫存編號 168-6047
製造零件編號LM217T
HK$6.384
毎管:50 個
單位
- 1.5A Linear Voltage 1 0.02 %/V - 0.3 % Through Hole Positive TO-220 - 3 1.3V Adjustable
RS庫存編號 189-1374
製造零件編號L4941BV
HK$10.35
單位
- 1A Low Dropout Voltage 1 20 mV ±4% 20 mV Through Hole Positive TO-220 4mA 3 - Fixed