UA7815CKTTR Integrated Circuits (ICs)

Voltage Dropout (Max):	2V @ 1A
Base Part Number:	UA7815
Supplier Device Package:	DDPAK/TO-263-3
Package / Case:	TO-263-4, D²Pak (3 Leads + Tab), TO-263AA
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Short Circuit
Control Features:	--
PSRR:	78dB (120Hz)
Current - Output:	1.5A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	15V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction of UA7815CKTTR

The UA7815CKTTR is an integrated circuit (IC) designed and manufactured by Texas Instruments and is part of the family of Linear Voltage Regulators. It is designed to provide a regulated positive voltage of up to 15V and is ideal for many applications in both industrial and consumer electronics. The UA7815CKTTR provides consideration for both efficiency and flexibility. Its main feature is its low quiescent current (<1mA) and its small package size (SO-8).

Application Field of UA7815CKTTR

The UA7815CKTTR is a versatile regulator that is capable of providing a regulated output voltage for a wide range of applications. It can be used for power supply rails, battery management, monitoring systems, audio equipment and communications devices. It can also be used for virtually any other system that requires a low quiescent current, stable output voltage and reliable operation.The UA7815CKTTR is suitable for distributed power systems where two or more voltage regulators are used in series, as it will operate from an input voltage up to 36V and its current limit feature means that it can be used safely in multiple outputs. This regulator is also designed for high power applications where the maximum output current is 450mA with a maximum power dissipation of 1.5W.

Working Principle of UA7815CKTTR

At the heart of the UA7815CKTTR is an error amplifier and series pass transistor, which is used to regulate the output voltage. The internal circuitry of the device is designed to accurately sense and regulate the output voltage of the device, regardless of any changes to the input voltage or load conditions. This is done by continuously comparing the output voltage of the regulator to an internal reference voltage.When the output voltage falls below the reference voltage, the error amplifier will drive the series pass transistor to increase the amount of current supplied to the load, causing the output voltage to increase again. Similarly, when the output voltage is above the reference voltage, the error amplifier will drive the series pass transistor to decrease the amount of current supplied to the load, causing the output voltage to decrease again.

Conclusion

The UA7815CKTTR is an integrated linear voltage regulator which is ideally suited for applications requiring a low quiescent current, high output current and good regulation accuracy. It is suitable for efficient power management in handheld and battery-operated devices, and its current limit feature makes it well-suited for distributed power systems. Its performance, small package size and low quiescent current make the UA7815CKTTR an excellent choice for a wide range of applications.

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