L78L12ABD-TR

Current - Output:	100mA
Base Part Number:	L78L12A
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	--
PSRR:	42dB (120Hz)
Current - Supply (Max):	6.5mA
Current - Quiescent (Iq):	6mA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	12V
Voltage - Input (Max):	35V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to L78L12ABD-TR

L78L12ABD-TR is a voltage regulator of the Linear type, and also a Product of STMicroelectronics. It is a three pin, low drop out regulator and is an ideal choice for applications needing an input voltage range about 1.5V to 20.0V. It can have output voltages of 3.0V to 20.0V with a current of up to 100 mA. The L78L12ABD-TR features low-current standby mode and double current capability, which allow it to deliver high output accuracy with minimum power dissipation and less magnetic interference. This voltage regulator is designed to offer better system performance, reliability and greater flexibility in designing power supplies.

Application Field of L78L12ABD-TR

The L78L12ABD-TR is an excellent choice for a wide variety of power-supply applications. It is primarily used in the aerospace, automotive, industrial, and consumer electronics markets. The applications of this IC include portable devices, automotive electronics, power supplies using transformers and switching regulators, portable and notebook PCs, scanners, cellular phones, and other portable electronic devices that require a low-dropout voltage regulator. The L78L12ABD-TR has low dropout voltage, good stability, high efficiency, and high reliability. It is also very popular for its low power consumption.

Working Principle of L78L12ABD-TR

The L78L12ABD-TR is based on a standard linear regulator design. It has an internal reference voltage that is used to ensure that the output voltage is stable. It also contains an error amplifier that compares the output voltage to the reference voltage. If the two differ, the error amplifier will adjust the output voltage accordingly. The voltage that is needed to be adjustable is then divided down by the voltage-divider network. When the output voltage of the regulator is being adjusted, the impedance of the voltage-divider network will also change. The output voltage is then monitored and adjusted in real time by the error amplifier until the adjustment of the voltage-divider network reaches the desired voltage.

Advantage of L78L12ABD-TR

The L78L12ABD-TR has several advantages over other linear regulators. It is very efficient, with very little heat generated and no need for external cooling. This can be very beneficial in applications with limited space or weight constraints. It also has high accuracy, with an output voltage that is stable over changes in temperature and line voltage. In addition, the L78L12ABD-TR is reliable and durable, with an operational life of over 20 years without degradation. Moreover, the L78L12ABD-TR is very low-cost and easy to use, making it a great choice for budget-conscious applications.

In conclusion, the L78L12ABD-TR is a voltage regulator of the Linear type, and is a prominent product from STMicroelectronics. It is a three-pin, low-drop-out regulator that is suitable for a wide variety of power-supply applications. The L78L12ABD-TR has several advantages such as high accuracy, efficiency and reliability, and is an ideal choice for applications needing an input voltage range from 1.5V to 20V, and output voltages from 3V to 20V with a current of up to 100mA.

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