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 which require a particular voltage input. For example, a processor. Input voltage, output voltage and output current are all important things to consider when choosing an 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 which 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 887-7429
製造零件編號MCP1700T-3302E/TT
BrandMicrochip
HK$2.843
個 (在毎卷:3000)
單位
- 250mA Low Dropout Voltage 1 0.75 %/V ±2% 1 % Surface Mount Positive SOT-23 0.0016mA 3 - Fixed
RS庫存編號 122-0131
製造零件編號NCP59151MN50TYG
HK$8.232
個 (在毎卷:4000)
單位
- 1.5A Low Dropout Voltage 1 0.5 % ±2% 1 % Surface Mount Positive DFN 80mA 8 - Fixed
RS庫存編號 145-6362
製造零件編號TPS79933DDCT
HK$5.449
個 (在毎卷:250)
單位
- 200mA Low Dropout Voltage 1 0.02 %/V ±1% 0.002 %/mA Surface Mount Positive SOT-23 0.04mA 5 - Fixed
RS庫存編號 124-5349
製造零件編號NCP1117ST50T3G
HK$1.54
個 (在毎卷:4000)
單位
- 2.2A Low Dropout Voltage 1 6 mV ±1% 15 mV Surface Mount Positive SOT-223 10mA 3+Tab - Fixed
RS庫存編號 103-2162
製造零件編號MC7805ABD2TG
HK$6.685
毎管:50 個
單位
- 2.2A Linear Voltage 1 10 mV ±4% 25 mV Surface Mount Positive D2PAK 3.2mA 3 - Fixed
RS庫存編號 460-859
製造零件編號LM2931AT-5.0/NOPB
HK$11.546
/個 (每包:5個)
單位
- 100mA Low Dropout Voltage 1 30 mV ±3.8% 50 mV Through Hole Positive TO-220 - 3 - Fixed
RS庫存編號 516-5988
製造零件編號MC7805ABD2TG
HK$8.106
/個 (每包:5個)
單位
- 2.2A Linear Voltage 1 10 mV ±4% 25 mV Surface Mount Positive D2PAK 3.2mA 3 - Fixed
RS庫存編號 464-104
製造零件編號LM337TG
HK$5.578
/個 (每包:10個)
單位
- 1.5A Linear Voltage 1 0.04 %/V - 1 % Through Hole Negative TO-220 - 3 -1.25V Adjustable
RS庫存編號 714-0697
製造零件編號LD1117S33TR
HK$2.942
/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 178-9233
製造零件編號LM2931AT-5.0/NOPB
HK$12.228
毎管:45 個
單位
- 100mA Low Dropout Voltage 1 30 mV ±3.8% 50 mV Through Hole Positive TO-220 - 3 - Fixed
RS庫存編號 817-5408
製造零件編號TPS73801DCQR
HK$21.856
/個 (每包:5個)
單位
- 1A Low Dropout Voltage 1 5 mV - 18 mV Surface Mount Positive SOT-223 1µA 5+Tab - Adjustable
RS庫存編號 533-9583
製造零件編號LM1117MP-5.0/NOPB
HK$23.56
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
HK$96.89
單位
- 5A Low Noise LDO 1 25 mV - 72 mV Through Hole Positive TO-220 10mA 3 - Fixed
RS庫存編號 535-8663
製造零件編號LM1117IMP-ADJ/NOPB
HK$9.982
/個 (每包:5個)
單位
- 1.5A Low Dropout Voltage 1 0.035 % ±1% 0.2 % Surface Mount Positive SOT-223 - 3+Tab 1.262V Adjustable
RS庫存編號 162-8417
製造零件編號TPS73801DCQR
HK$13.077
個 (在毎卷:2500)
單位
- 1A Low Dropout Voltage 1 5 mV - 18 mV Surface Mount Positive SOT-223 1µA 5+Tab - Adjustable
RS庫存編號 163-2415
製造零件編號LM337TG
HK$6.29
毎管:50 個
單位
- 1.5A Linear Voltage 1 0.04 %/V - 1 % Through Hole Negative TO-220 - 3 -1.25V Adjustable
RS庫存編號 761-8611
製造零件編號LT3080EDD#PBF
HK$40.89
單位
- 1.1A Low Dropout Voltage 1 0.003 mV/V 1% 1.3 mV Surface Mount Positive DFN 1mA 8 - Adjustable
RS庫存編號 857-8845
製造零件編號TLE42764GV50ATMA1
BrandInfineon
HK$9.31
個 (在毎卷:1000)
單位
- 1.1A Low Dropout Voltage 1 25 mV ±2% 35 mV Surface Mount Positive D2PAK (TO-263) 220µA 5 2.5V Fixed
RS庫存編號 168-6804
製造零件編號LD1117S33TR
HK$1.195
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 100-5931
製造零件編號LM1117MP-5.0/NOPB
HK$4.975
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