
Allicdata Part #: | MC78L08ABDGOS-ND |
Manufacturer Part#: |
MC78L08ABDG |
Price: | $ 0.35 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC REG LINEAR 8V 100MA 8SOIC |
More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
DataSheet: | ![]() |
Quantity: | 3807 |
1 +: | $ 0.31500 |
10 +: | $ 0.25452 |
100 +: | $ 0.17319 |
500 +: | $ 0.12988 |
1000 +: | $ 0.09741 |
Current - Output: | 100mA |
Base Part Number: | MC78L08 |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 125°C |
Protection Features: | Over Temperature, Short Circuit |
Control Features: | -- |
PSRR: | 57dB (120Hz) |
Current - Quiescent (Iq): | 6mA |
Series: | -- |
Voltage Dropout (Max): | -- |
Voltage - Output (Max): | -- |
Voltage - Output (Min/Fixed): | 8V |
Voltage - Input (Max): | 30V |
Number of Regulators: | 1 |
Output Type: | Fixed |
Output Configuration: | Positive |
Part Status: | Active |
Packaging: | Tube |
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Introduction to MC78L08ABDG Application Field and Working Principle
A linear voltage regulator, such as the MC78L08ABDG, is a device designed to provide a regulated voltage output for a given set of input values. It allows the output voltage to be set accurately, and is the most basic type of voltage regulator. The MC78L08ABDG is classified as a PMIC (Power Management IC), allowing the regulation of voltage in order to provide power to an electronic device. This article will explain the application field, as well as the working principle, behind the MC78L08ABDG.
Application Field
The MC78L08ABDG is a three-terminal voltage regulator. This means it has two pins that are the input and output voltages, while the third is the ground reference. It is a low-dropout regulator, which means that the output voltage can drop very close to the input voltage, and the difference is called the dropout voltage or dropout voltage differential. This makes the MC78L08ABDG ideal for low-voltage power applications, as it can regulate output voltages as low as 1.8 V with a 1.5 V dropout voltage, and 3.3 V with a 2.3 V dropout voltage.
Another useful feature of the MC78L08ABDG is its low quiescent current. This means that the amount of current drawn when the output voltage is stable and not changing is very low, and, thus, the device does not require much power. This makes the MC78L08ABDG ideal for many battery-powered or portable applications, as well as applications that require a low power consumption. The device also has a protection circuit that is able to monitor current, temperature, and input/output voltages. This provides a level of safety and reliability to applications that require a voltage regulator.
The MC78L08ABDG is an excellent choice for applications that require a low-dropout voltage, low quiescent current, high current capability, and wide operating temperature range. It is suitable for many power management applications, including portable electronics, hand held devices, and automotive systems.
Working Principle
Linear voltage regulators work by comparing the input voltage to an internal reference voltage. The reference voltage is usually generated by a voltage divider in the device itself, and is usually accurate to very close tolerances. When the input voltage is larger than the reference voltage, the voltage regulator will attempt to bring the output voltage down to the reference voltage. Conversely, when the input voltage is lower than the reference voltage, the regulator will attempt to bring the output voltage up to the reference voltage.
This is done by using an error amplifier. The main role of this amplifier is to compare the input voltage to the reference voltage, and then generate an output signal that is proportional to the difference between the two. This signal is then used to control the output voltage of the regulator. The regulator is able to adjust the amount of current allowed to pass through its output by adjusting the gain of the error amplifier, thus regulating the output voltage.
In addition to the error amplifier, the MC78L08ABDG also contains other components that are used to adjust the output voltage and current. There is a voltage divider used as the reference voltage, a voltage sense circuit that can monitor the output voltage, current limiting circuits, and more. All of these components together make the MC78L08ABDG an efficient and reliable linear voltage regulator.
Conclusion
The MC78L08ABDG is an excellent choice for low-voltage and portable applications due to its low dropout voltage and low quiescent current. It is able to provide a regulated voltage output with a high level of accuracy and safety. Its design includes features such as a reference voltage, current limiting circuits, and temperature protection, making it highly reliable in the regulation of voltage output.
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