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 81 - 100 av 1914 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 145-5387
Tillv. art.nrKA7909TU
VarumärkeON Semiconductor
5,017 kr
Each (In a Tube of 50)
Enheter
-9 V 1A Fixed TO-220 Through Hole - -35 V 3 - 0 °C +125 °C 1 Negative ±4%
RS-artikelnummer 169-8946
Tillv. art.nrTS78L12CS RLG
1,149 kr
Each (On a Reel of 2500)
Enheter
12 V 150mA Fixed SOP Surface Mount - 35 V 8 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 779-9628
Tillv. art.nrLT317AT#PBF
VarumärkeAnalog Devices
43,995 kr
Each (In a Pack of 2)
Enheter
5 → 40 V 1.5A Adjustable TO-220 Through Hole 3 V 40 V 3 - 0 °C +125 °C 1 Positive -
RS-artikelnummer 100-5905
Tillv. art.nrLM317T/NOPB
VarumärkeTexas Instruments
15,954 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 - 0 °C +125 °C 1 Positive -
RS-artikelnummer 125-0052
Tillv. art.nrMC7818CTG
VarumärkeON Semiconductor
3,179 kr
Each (In a Tube of 50)
Enheter
18 V 2.2A Fixed TO-220 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 661-6721
Tillv. art.nrUA78M05CDCY
VarumärkeTexas Instruments
5,75 kr
Each (In a Pack of 5)
Enheter
5 V 500mA Fixed SOT-223 Surface Mount 7 V 25 V 3+Tab - 0 °C +125 °C 1 Positive -
RS-artikelnummer 186-9116
Tillv. art.nrNCP59302DSADJR4G
VarumärkeON Semiconductor
11,815 kr
Each (On a Reel of 800)
Enheter
1.24 → 13 V 3A Adjustable D2PAK Surface Mount 0 V 18 V 5 - -40 °C +125 °C 1 Positive ±2%
RS-artikelnummer 168-6801
Tillv. art.nrL78M05CDT-TR
VarumärkeSTMicroelectronics
1,415 kr
Each (On a Reel of 2500)
Enheter
5 V 500mA Fixed DPAK Surface Mount - 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 298-8564
Tillv. art.nrL7824CV
VarumärkeSTMicroelectronics
9,20 kr
Each
Enheter
24 V 1.5A Fixed TO-220 Through Hole - 40 V 3 - 0 °C +150 °C 1 Positive -
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 178-4810
Tillv. art.nrMC78M12BDTG
VarumärkeON Semiconductor
4,682 kr
Each (In a Tube of 75)
Enheter
12 V 700mA Fixed DPAK Surface Mount - 35 V 3 5W -40 °C +125 °C 1 Positive -
RS-artikelnummer 102-8965
Tillv. art.nrL7805ABD2T-TR
VarumärkeSTMicroelectronics
2,977 kr
Each (On a Reel of 1000)
Enheter
5 V 1.5A Fixed D2PAK Through Hole - 35 V 3 - -40 °C +125 °C 1 Positive -
RS-artikelnummer 460-768
Tillv. art.nrLM340T-5.0/NOPB
VarumärkeTexas Instruments
18,592 kr
Each (In a Pack of 5)
Enheter
5 V 1A Fixed TO-220 Through Hole 7.5 V 35 V 3 - 0 °C +125 °C 1 Positive ±2%
RS-artikelnummer 751-3102
Tillv. art.nrAP7333-33SAG-7
VarumärkeDiodesZetex
2,897 kr
Each (In a Pack of 50)
Enheter
3.3 V 300mA Fixed SOT-23 Surface Mount 2 V 6 V 3 - -40 °C +85 °C 1 Positive ±2%
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 714-0679
Tillv. art.nrL78L05ACUTR
VarumärkeSTMicroelectronics
3,578 kr
Each (In a Pack of 10)
Enheter
5 V 100mA Fixed SOT-89 Surface Mount - 30 V 3 - 0 °C +150 °C 1 Positive ±5%
RS-artikelnummer 686-9476
Tillv. art.nrL78L08ABUTR
VarumärkeSTMicroelectronics
3,346 kr
Each (In a Pack of 25)
Enheter
8 V 100mA Fixed SOT-89 Surface Mount - 30 V 3 - -40 °C +125 °C 1 Positive -
RS-artikelnummer 761-5680
Tillv. art.nrLM340MP-5.0/NOPB
VarumärkeTexas Instruments
13,67 kr
Each (In a Pack of 5)
Enheter
5 V 1A Fixed SOT-223 Surface Mount 7.5 V 35 V 3+Tab - 0 °C +125 °C 1 Positive -
RS-artikelnummer 163-2415
Tillv. art.nrLM337TG
VarumärkeON Semiconductor
5,77 kr
Each (In a Tube of 50)
Enheter
-37 → -1.2 V 1.5A Adjustable TO-220 Through Hole - -40 V 3 - 0 °C +125 °C 1 Negative -
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 ...