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 41 - 60 av 1947 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 922-2410
Tillv. art.nrTPS7A3001DGNT
VarumärkeTexas Instruments
25,637 kr
Each (On a Reel of 250)
Enheter
-33 V 200mA Adjustable MSOP Surface Mount -36 V -3 V 8 - -40 °C +150 °C 1 Negative 2.5%
RS-artikelnummer 535-9357
Tillv. art.nrLM340S-12/NOPB
VarumärkeTexas Instruments
16,316 kr
Each (In a Pack of 5)
Enheter
12 V 1A Fixed D2PAK (TO-263) Surface Mount 14.6 V 35 V 3 - 0 °C +125 °C 1 Positive ±2%
RS-artikelnummer 168-6545
Tillv. art.nrLM217MDT-TR
VarumärkeSTMicroelectronics
3,078 kr
Each (On a Reel of 2500)
Enheter
1.2 37 V 200mA Adjustable DPAK Surface Mount 3 V - 3 - -40 °C +125 °C 1 Positive -
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 162-9590
Tillv. art.nrNCV78M12BDTRKG
VarumärkeON Semiconductor
1,881 kr
Each (On a Reel of 2500)
Enheter
12 V 700mA Fixed DPAK Surface Mount - 35 V 3 5W -40 °C +125 °C 1 Positive -
RS-artikelnummer 739-0502
Tillv. art.nrKA7810ETU
VarumärkeON Semiconductor
7,61 kr
Each (In a Pack of 5)
Enheter
10 V 1A Fixed TO-220 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 714-0666
Tillv. art.nrL7809CV
VarumärkeSTMicroelectronics
3,795 kr
Each (In a Pack of 10)
Enheter
9 V 1.5A Fixed TO-220 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive 2%
RS-artikelnummer 796-8433
Tillv. art.nrTPS7A4901DGNT
VarumärkeTexas Instruments
26,935 kr
Each (In a Pack of 2)
Enheter
33 V 150mA Adjustable MSOP Surface Mount 3 V 36 V 8 - -40 °C +150 °C 1 Positive 2.5%
RS-artikelnummer 686-9735
Tillv. art.nrL7824CP
VarumärkeSTMicroelectronics
6,494 kr
Each (In a Pack of 10)
Enheter
24 V 1.5A Fixed TO-220FP Through Hole - 40 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 398-568
Tillv. art.nrTS78L12CS RLG
4,543 kr
Each (In a Pack of 50)
Enheter
12 V 150mA Fixed SOP Surface Mount - 35 V 8 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 739-0552
Tillv. art.nrKA7909TU
VarumärkeON Semiconductor
6,162 kr
Each (In a Pack of 5)
Enheter
-9 V 1A Fixed TO-220 Through Hole - -35 V 3 - 0 °C +125 °C 1 Negative ±4%
RS-artikelnummer 742-7764
Tillv. art.nrADP151AUJZ-3.3-R7
VarumärkeAnalog Devices
9,72 kr
Each
Enheter
3.3 V 200mA Fixed TSOT Surface Mount 2.2 V 5.5 V 5 - -40 °C +125 °C 1 Positive ±2.5%
RS-artikelnummer 464-091
Tillv. art.nrLM317LDG
VarumärkeON Semiconductor
3,557 kr
Each (In a Pack of 25)
Enheter
1.2 37 V 100mA Adjustable SOIC Surface Mount - - 8 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 686-9818
Tillv. art.nrL78M15CV
VarumärkeSTMicroelectronics
4,802 kr
Each (In a Pack of 25)
Enheter
15 V 500mA Fixed TO-220 Through Hole - 35 V 3 - 0 °C +150 °C 1 Positive -
RS-artikelnummer 155-5383
Tillv. art.nrLT317AT#PBF
VarumärkeAnalog Devices
29,428 kr
Each (In a Tube of 50)
Enheter
5 40 V 1.5A Adjustable TO-220 Through Hole 3 V 40 V 3 - 0 °C +125 °C 1 Positive -
RS-artikelnummer 460-900
Tillv. art.nrLM338T/NOPB
VarumärkeTexas Instruments
18,282 kr
Each (In a Pack of 5)
Enheter
1.2 32 V 5A Adjustable TO-220 Through Hole 4.2 V 40 V 3 25W 0 °C +125 °C 1 Positive -
RS-artikelnummer 885-5423
Tillv. art.nrAS78L05ZTR-E1
VarumärkeDiodesZetex
0,891 kr
Each (In a Pack of 100)
Enheter
5 V 100mA Fixed TO-92 Through Hole - 30 V 3 - -40 °C +125 °C 1 Positive ±5%
RS-artikelnummer 100-5950
Tillv. art.nrLM7912CT/NOPB
VarumärkeTexas Instruments
12,151 kr
Each (In a Tube of 45)
Enheter
-12 V 1.5A Fixed TO-220 Through Hole - -19 V 3 - 0 °C +125 °C 1 Negative ±4%
RS-artikelnummer 145-4324
Tillv. art.nrKA7810ETU
VarumärkeON Semiconductor
3,195 kr
Each (In a Tube of 50)
Enheter
10 V 1A Fixed TO-220 Through Hole - 35 V 3 - 0 °C +125 °C 1 Positive ±4%
RS-artikelnummer 785-7446
Tillv. art.nrNCV78M12BDTRKG
VarumärkeON Semiconductor
4,322 kr
Each (In a Pack of 10)
Enheter
12 V 700mA Fixed DPAK Surface Mount - 35 V 3 5W -40 °C +125 °C 1 Positive -
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 ...