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Voltage Regulators

A system created to automatically maintain a constant voltage is known as a voltage regulator. Negative feedback or a straightforward feed-forward architecture can be used in a voltage regulator. It could make use of electrical parts or an electromechanical mechanism. It may be used to control one or more AC or DC voltages, depending on the design. Electronic voltage regulators are used to regulate the DC voltages required by the CPU and other components in devices like the computer power supply.

Voltage regulators manage the plant's output in central power plant generators and automotive alternators. A voltage regulator can be installed at a substation or along distribution lines in an electric power distribution system to ensure that all customers receive a constant voltage regardless of how much power is consumed from the line.

Regulator Specifications

The output voltage can be automated constantly within the specified constraints. This regulation is characterized by several factors:

  • Load regulation is the variation in output current for a specific change in overload current, such as frequently 15 mV, maximum of 100 mV for load voltage between 5 mA and 1.4 A, at some pre-defined temperature and input voltage.
  • The ratio of output to input change or the output voltage change across the whole specified input voltage range, for example, "plus or minus 2 percent for input voltages between 90 V and 260 V, 50-60 Hz," are two ways to describe line regulation of input regulation.
  • The temperature coefficient of the generating voltage is the variation with temperature, such as the average temperature over a given temperature change.
  • The initial accuracy of a current regulator is usually called the voltage accuracy; without taking into account the impact of temperature or aging on output precision, the voltage accuracy" is the deviation in output voltage for a specific regulator.
  • Drop out voltage is the smallest difference between the input and output voltages at which the regulator can still provide the required current known as the dropout voltage. The dropout voltage is the input-output difference at which the voltage regulator will no longer sustain regulation. The reduced output voltage will be the outcome of a further input voltage decrease. This value is influenced by junction temperature and load.
  • Absolute maximum ratings are specified for regulator parts, including the maximum input voltage, maximum power dissipation at a specific temperature, maximum continuous and peak output currents (often internally restricted) that may be utilized, etc.

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DiodesZetex
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AP2114D-3.3TRG1, DiodesZetex
2498 In Stock
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£ 0.37
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MCP1804T-1802I/OT, Microchip
2998 In Stock
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£ 0.63
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MCP1702T-3302E/CB, Microchip
2998 In Stock
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£ 0.33
STMicroelectronics
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LD59150PUR, STMicroelectronics
969 In Stock
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4000 +
£ 0.73
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MC7812BTG, onsemi
4733 In Stock
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£ 0.31
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£ 0.19
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£ 0.14
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LM2931AD-5.0G, onsemi
815 In Stock
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£ 0.25
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£ 0.23
490 +
£ 0.22
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MC7815ABTG, onsemi
5984 In Stock
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£ 0.41
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£ 0.35
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£ 0.34
Maxim Integrated
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MAX8512EXK+T, Maxim Integrated
4994 In Stock
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£ 0.46
Renesas Electronics
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ISL91107IIAZ-T7A, Renesas Electronics
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£ 0.86
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NCP716BCSN330T1G, onsemi
6077 In Stock
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£ 0.28
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ISL97516IUZ-TK, Renesas Electronics
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ISL9120IRTAZ, Renesas Electronics
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ISL6420BIRZ-TK, Renesas Electronics
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£ 1.91
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ZSR500GTA, DiodesZetex
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TC7660EPA, Microchip
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£ 0.78
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TLE4252DATMA1, Infineon
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£ 0.62
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ICL7660CBAZA, Renesas Electronics
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£ 0.87
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Microchip
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TC595002ECBTR, Microchip
748 In Stock
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Monolithic Power Systems (MPS)
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MP9361DJ-LF-P, Monolithic Power Systems (MPS)
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£ 0.59
Wurth Elektronik
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173010342, Wurth Elektronik
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£ 7.74
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173010378, Wurth Elektronik
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LR8N8-G, Microchip
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£ 0.41
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ZXTR2012P5-13, DiodesZetex
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ISL80101IRAJZ-TK, Renesas Electronics
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Renesas Electronics
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ISL80111IRAJZ, Renesas Electronics
2498 In Stock
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£ 0.82
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£ 0.79
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£ 0.77
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New Items
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MC78M05BDTG, ON Semiconductor

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The Infineon TLE 4274 is a low drop voltage regulator available in a TO220 package. The IC regulates an input voltage up to 40 V to VQ rated 5.0 V, 8.5 V and 10 V. The maximum output current is 400 mA. The IC is short-circuit proof and incorporates temperature protection that disables the IC at over temperature. Very low dropout voltage Output current limitation Reverse polarity protection Over temperature protection Green product RoHS compliant AEC qualified
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TLS105B0MBHTSA1, Infineon

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The Infineon TLS105B0MB series is a monolithic integrated low-dropout voltage tracking regulator with high accuracy in small PG-SCT595-5 package. This device is designed to supply off-board systems, for example sensors in power train management systems under the severe conditions of automotive applications. Small package and small external components, enables lower design effort and BOM cost savings Protected sensor supply for off-board sensors High-precision voltage tracking Reverse polarity protected input Over temperature protection
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