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 661-6187
製造零件編號REG104GA-3.3
TWD992.00
單位
- 1A Low Dropout Voltage 1 - ±2% - Surface Mount Positive SOT-223 - 5+Tab 1.295V Fixed
RS庫存編號 922-3505
製造零件編號REG104GA-3.3
TWD810.80
毎管:78 個
單位
- - - - - - - - - - - - - -
RS庫存編號 100-5931
製造零件編號LM1117MP-5.0/NOPB
TWD16.80
個 (在毎卷:1000)
單位
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS庫存編號 533-9583
製造零件編號LM1117MP-5.0/NOPB
TWD39.00
單位
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount Positive SOT-223 - 3+Tab - Fixed
RS庫存編號 858-0838
製造零件編號LT1084CT-12#PBF
TWD354.00
單位
- 5A Low Noise LDO 1 25 mV - 72 mV Through Hole Positive TO-220 10mA 3 - Fixed
RS庫存編號 714-0792
製造零件編號LM317T
TWD24.20
/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
TWD22.40
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 535-9048
製造零件編號LM2940T-9.0/NOPB
TWD59.00
/個 (每包:5個)
單位
- 1A Low Dropout Voltage 1 90 mV - 90 mV Through Hole Positive TO-220 - 3 - Fixed
RS庫存編號 121-8831
製造零件編號LM2940T-9.0/NOPB
TWD50.30
毎管:45 個
單位
- 1A Low Dropout Voltage 1 90 mV - 90 mV Through Hole Positive TO-220 - 3 - Fixed
RS庫存編號 533-5711
製造零件編號LM317LZ/NOPB
TWD25.00
單位
- 100mA Linear Voltage 1 0.04 %/V - 0.5 % Through Hole Positive TO-92 - 3 1.3V Adjustable
RS庫存編號 669-4890
製造零件編號MCP1703-5002E/DB
BrandMicrochip
TWD22.00
/個 (每包:5個)
單位
- 250mA Low Dropout Voltage 1 0.1 %/V ±2% 1 % Surface Mount Positive SOT-223 0.002mA 3+Tab - Fixed
RS庫存編號 100-3967
製造零件編號LM317LZ/NOPB
TWD9.70
個 (在毎卷:1800)
單位
- 100mA Linear Voltage 1 0.04 %/V - 0.5 % Through Hole Positive TO-92 - 3 1.3V Adjustable
RS庫存編號 911-5744
製造零件編號MCP1703-5002E/DB
BrandMicrochip
TWD18.70
毎管:78 個
單位
- 250mA Low Dropout Voltage 1 0.1 %/V ±2% 1 % Surface Mount Positive SOT-223 0.002mA 3+Tab - Fixed
RS庫存編號 923-2537
製造零件編號LM2941S/NOPB
TWD70.50
毎管:45 個
單位
- 1A Low Dropout Voltage 1 10 mV/V - 10 mV/V Surface Mount Positive D2PAK (TO-263) - 5 1.313V Adjustable
RS庫存編號 742-7691
製造零件編號ADP150AUJZ-3.3-R7
TWD35.80
/個 (每包:5個)
單位
- 150mA Low Dropout Voltage 1 0.05 %/V -2.5 → 1.5% 0.008 %/mA Surface Mount Positive TSOT 0.01mA 5 - Fixed
RS庫存編號 460-461
製造零件編號LM2941S/NOPB
TWD90.00
/個 (每包:5個)
單位
- 1A Low Dropout Voltage 1 10 mV/V - 10 mV/V Surface Mount Positive D2PAK (TO-263) - 5 1.313V Adjustable
RS庫存編號 660-7975
製造零件編號TLV1117-33CDCY
TWD41.00
單位
- 800mA Low Dropout Voltage 1 0.2 % - 0.4 % Surface Mount Positive SOT-223 5mA 3+Tab - Fixed
RS庫存編號 398-647
製造零件編號TS78M05CP ROG
TWD19.70
/個 (每包:50個)
單位
- 500mA Linear Voltage 1 100 mV ±4% 100 mV Surface Mount Positive TO-252 3mA 3 - Fixed
RS庫存編號 918-1975
製造零件編號L7812CV
TWD12.50
毎管:50 個
單位
- 1.5A Linear Voltage 1 240 mV - 240 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 153-3327
製造零件編號LT1964ES5-5#TRMPBF
TWD71.90
個 (在毎卷:500)
單位
- 200mA Low Noise LDO 1 50 mV - 50 mV Surface Mount Negative TSOT-23 0.03mA 5 1.22V Fixed