Linear Voltage Regulators

A Linear Voltage Regulator ensures the output voltage from the circuit is maintained at a specific voltage.

The device acts as a variable resistor, continuously adjusting to maintain a constant output voltage. The regulated voltage must be lower than the input voltage. Simple voltage regulator contains a Zener Diode and a resistor but more complicated versions include elements like a voltage reference and error amplifiers.

A more specific type of regulator are Low Dropout Voltage Regulators (LDO) which can regulate voltage even when the power supply voltage is very close to the supply voltage.


How to choose linear voltage regulator ICs?


The primary feature in choosing a regulator is usually the Output voltage as the main purpose of one is to regulate the voltage to a specific value such as 3.3V. Its accuracy to this voltage across temperature and load current is another consideration as is its maximum load. The dropout voltage value will be particularly important with battery applications.


How to test a linear voltage regulator?


  1. Set your multimeter to the voltage setting
  2. Check the datasheet to determine which pins are the ground, input and output.
  3. Attach the red wire to the input and the black wire to the ground, the multimeter should give a reading higher than the regulators' output value. If not then there is a power supply issue.
  4. Attach the red to the ground and the black wire the output, the multimeter should then give the regulators' output value (plus minus its accuracy). If not then the regulator is likely to be faulty.

...
Read more Read less

Filter

Visar 101 - 120 av 1915 produkter
Resultat per sida
Beskrivning Pris Output Voltage Maximum Output Current Output Type Package Type Mounting Type Minimum Input Voltage Maximum Input Voltage Pin Count Power Rating Minimum Operating Temperature Maximum Operating Temperature Number of Outputs Polarity Accuracy
RS-artikelnummer 751-3027
Tillv. art.nrAP7167-FNG-7
VarumärkeDiodesZetex
7,135 kr
Each (On a Tape of 10)
Enheter
0.8 → 5 V 1.2A Adjustable DFN3030 Surface Mount 2.2 V 5.5 V 10 - -40 °C +85 °C 2 Positive ±3%
RS-artikelnummer 516-5764
Tillv. art.nrMC78L12ACPG
VarumärkeON Semiconductor
4,094 kr
Each (In a Pack of 5)
Enheter
12 V 100mA Fixed TO-92 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive -
RS-artikelnummer 102-3530
Tillv. art.nrL78S05CV
VarumärkeSTMicroelectronics
5,602 kr
Each (In a Tube of 50)
Enheter
5 V 2A Fixed TO-220 Through Hole 8 V 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 748-8766
Tillv. art.nrNCP4681DSQ15T1G
VarumärkeON Semiconductor
7,052 kr
Each (In a Pack of 5)
Enheter
1.5 V 180mA Fixed SC-70 Surface Mount 1.4 V 5.25 V 5 - -40 °C +150 °C 1 Positive ±1%
RS-artikelnummer 157-8360
Tillv. art.nrLT1033CT#PBF
VarumärkeAnalog Devices
41,91 kr
Each (In a Tube of 50)
Enheter
-1.2 → -32 V 3A Adjustable TO-220 Through Hole - - 3 - 0 °C +125 °C 1 Negative ±1%
RS-artikelnummer 168-6064
Tillv. art.nrL78M05CV
VarumärkeSTMicroelectronics
4,682 kr
Each (In a Tube of 50)
Enheter
5 V 500mA Fixed TO-220 Through Hole - 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 793-1346
Tillv. art.nrL7805CV-DG
VarumärkeSTMicroelectronics
4,777 kr
Each (In a Pack of 10)
Enheter
5 V 1.5A Fixed TO-220 Through Hole - 35 V 3 - 0 °C +125 °C 1 - -
RS-artikelnummer 398-552
Tillv. art.nrTS78L05CT A3G
3,619 kr
Each (In a Pack of 50)
Enheter
5 V 150mA Fixed TO-92 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 688-9294
Tillv. art.nrMC78M05CDTRKG
VarumärkeON Semiconductor
3,67 kr
Each (In a Pack of 2)
Enheter
5 V 700mA Fixed DPAK Surface Mount - 35 V 3 - 0 °C +125 °C 1 Positive -
RS-artikelnummer 686-9741
Tillv. art.nrL7815CP
VarumärkeSTMicroelectronics
6,38 kr
Each (In a Pack of 10)
Enheter
15 V 1.5A Fixed TO-220FP Through Hole - 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 145-9195
Tillv. art.nrL78S18CV
VarumärkeSTMicroelectronics
6,688 kr
Each (In a Tube of 50)
Enheter
18 V 2A Fixed TO-220 Through Hole 21 V 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 168-6595
Tillv. art.nrL78S10CV
VarumärkeSTMicroelectronics
5,685 kr
Each (In a Tube of 50)
Enheter
10 V 2A Fixed TO-220 Through Hole 13 V 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 168-6062
Tillv. art.nrL7824CV
VarumärkeSTMicroelectronics
3,478 kr
Each (In a Tube of 50)
Enheter
24 V 1.5A Fixed TO-220 Through Hole - 40 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 163-2612
Tillv. art.nrNCP4681DSQ33T1G
VarumärkeON Semiconductor
3,022 kr
Each (On a Reel of 3000)
Enheter
3.3 V 180mA Fixed SC-70 Surface Mount 1.4 V 5.25 V 5 - -40 °C +150 °C 1 Positive ±1%
RS-artikelnummer 168-6598
Tillv. art.nrL7824ABV
VarumärkeSTMicroelectronics
3,791 kr
Each (In a Tube of 50)
Enheter
24 V 1A Fixed TO-220 Through Hole - 40 V 3 - -40 °C +125 °C 1 Positive 2%
RS-artikelnummer 686-9802
Tillv. art.nrL7815ABV
VarumärkeSTMicroelectronics
4,169 kr
Each (In a Pack of 25)
Enheter
15 V 1A Fixed TO-220 Through Hole - 35 V 3 - -40 °C +125 °C 1 Positive 2%
RS-artikelnummer 714-7780
Tillv. art.nrL78S05CV
VarumärkeSTMicroelectronics
5,883 kr
Each (In a Pack of 10)
Enheter
5 V 2A Fixed TO-220 Through Hole 8 V 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 169-8944
Tillv. art.nrTS78L05CT A3G
0,924 kr
Each (On a Tape of 2000)
Enheter
5 V 150mA Fixed TO-92 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 100-3965
Tillv. art.nrLM317AT/NOPB
VarumärkeTexas Instruments
14,602 kr
Each (In a Tube of 45)
Enheter
1.2 → 37 V 1.5A Adjustable TO-220 Through Hole 4.2 V 40 V 3 - -40 °C +125 °C 1 Positive ±1%
RS-artikelnummer 168-6799
Tillv. art.nrL78L05ACUTR
VarumärkeSTMicroelectronics
1,283 kr
Each (On a Reel of 2500)
Enheter
5 V 100mA Fixed SOT-89 Surface Mount - 30 V 3 - 0 °C +150 °C 1 Positive ±5%
Related Products
This remarkable ON Semiconductor 5-volt linear voltage regulator ...
Description:
This remarkable ON Semiconductor 5-volt linear voltage regulator comes under the MC78L00A family. These products are monolithic integrated circuits designed as fixed-voltage regulators for a wide range of applications including local, on-card regulation. The positive voltage regulator requires no external ...
The ON Semiconductor MC78M00/MC78M00A linear voltage regulator is ...
Description:
The ON Semiconductor MC78M00/MC78M00A linear voltage regulator is a robust device that combines Internal current limiting, thermal shutdown and output transistor safe operating area protection. It can be used in many applications including local, on-card voltage regulation. Available in 5 ...
The L78L series of three-terminal positive regulators embed ...
Description:
The L78L series of three-terminal positive regulators embed internal current limiting, and thermal shut-down. Providing an adequate heat sink, up to 100mA output current can be delivered.
The NJM78xx Series, positive linear voltage regulator by ...
Description:
The NJM78xx Series, positive linear voltage regulator by New Japan Radio is a fixed voltage regulator. The 3-Terminal NJM78 range of voltage regulators requires no external components unless you want to adjust the voltage and current outputs. They incorporate internal ...