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 858-0835
製造零件編號LT1084CT#PBF
HK$96.89
單位
- 5A Low Noise LDO 1 0.015 % - 0.1 % Through Hole Positive TO-220 - 3 - Adjustable
RS庫存編號 100-5930
製造零件編號LM1117MP-3.3/NOPB
HK$4.738
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 533-9577
製造零件編號LM1117MP-3.3/NOPB
HK$9.99
單位
- 800mA Low Dropout Voltage 1 1 mV ±1% 1 mV Surface Mount - SOT-223 - 4 - Fixed
RS庫存編號 884-2552
製造零件編號LT1033CT#PBF
HK$64.99
/個 (每包:2個)
單位
- 3A Linear Voltage 1 0.05 %/V ±1% 1.5 % Through Hole Negative TO-220 - 3 -1.25V Adjustable
RS庫存編號 779-9628
製造零件編號LT317AT#PBF
HK$45.52
/個 (每包:2個)
單位
- 1.5A Linear Voltage 1 0.02 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.25V Adjustable
RS庫存編號 545-4884
製造零件編號LT1085CT#PBF
HK$80.81
單位
- 3A Low Dropout Voltage 1 0.2 % - 0.3 % Through Hole Positive TO-220 - 3 1.262V Adjustable
RS庫存編號 742-7691
製造零件編號ADP150AUJZ-3.3-R7
HK$9.436
/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 912-9589
製造零件編號ADP150AUJZ-3.3-R7
HK$4.631
個 (在毎卷:3000)
單位
- 150mA Linear 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 779-9038
製造零件編號LT1084IT#PBF
HK$112.68
單位
- 5A Low Dropout Voltage 1 0.5 % - 0.4 % Through Hole Positive TO-220 10mA 3 1.25V Adjustable
RS庫存編號 779-9619
製造零件編號LT337AT#PBF
HK$45.52
/個 (每包:2個)
單位
- 1.5A Linear Voltage 1 0.03 %/V - 1 % Through Hole Negative TO-220 - 3 -1.25V Adjustable
RS庫存編號 460-900
製造零件編號LM338T/NOPB
HK$18.974
/個 (每包:5個)
單位
- 5A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.29V Adjustable
RS庫存編號 100-0719
製造零件編號LM338T/NOPB
HK$18.146
毎管:45 個
單位
- 5A Linear Voltage 1 0.03 %/V - 0.5 % Through Hole Positive TO-220 - 3 1.29V Adjustable
RS庫存編號 168-6809
製造零件編號LM317T
HK$5.153
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 714-0792
製造零件編號LM317T
HK$4.571
/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 298-8621
製造零件編號L7915CV
HK$5.28
單位
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Negative TO-220 3mA 3 - Fixed
RS庫存編號 168-6061
製造零件編號L7815CV
HK$3.502
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 162-4712
製造零件編號LM2936Z-3.3/NOPB
HK$8.055
個 (以毎盒:1800)
單位
- 50mA Low Dropout Voltage 1 30 mV ±2% 30 mV Through Hole Positive TO-92 - 3 - Fixed
RS庫存編號 761-6567
製造零件編號LP2998MR/NOPB
HK$17.892
/個 (每包:5個)
單位
- 1.5A DC-DC 1 - - - Surface Mount - PSOP - 8 - Adjustable
RS庫存編號 298-8558
製造零件編號L7815CV
HK$4.50
單位
- 1.5A Linear Voltage 1 300 mV - 300 mV Through Hole Positive TO-220 8mA 3 - Fixed
RS庫存編號 504-5070
製造零件編號LM2936Z-3.3/NOPB
HK$17.624
/個 (每包:5個)
單位
- 50mA Low Dropout Voltage 1 30 mV ±2% 30 mV Through Hole Positive TO-92 - 3 - Fixed