LT1073CS8-5#PBF

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LT1073
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	19kHz
Current - Output:	1.5A (Switch)
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	30V
Voltage - Input (Min):	1V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck, Boost
Output Configuration:	Positive
Function:	Step-Up, Step-Down
Part Status:	Active
Packaging:	Tube

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What is LT1073CS8-5#PBF?

LT1073CS8-5#PBF is a high-performance step-down DC/DC switching regulator. It is an excellent choice for a variety of low-voltage applications, such as processor-based systems, where fast transient response, low noise and low dropout voltage are required. It features a true-power short-circuit protected output that is adjustable over a wide range of voltages. The output current is limited to a maximum of 3A.

Application Field of LT1073CS8-5#PBF

LT1073CS8-5#PBF is usually used in processor-based systems and other low-voltage applications, such as 3G or 4G cellular base stations, portable products, notebook computers, and office automation systems. Its features make it suitable for industrial applications, such as industrial robots and high-end telecom products.

Working Principles of LT1073CS8-5#PBF

The LT1073CS8-5#PBF uses a buck-boost topology to provide constant output voltage. It contains a high-efficiency low-dropout regulator, an internal oscillator, a pulse-width modulator, and a PNP pass transistor. The internal regulator senses and controls the output voltage by comparing it to an internal reference. The oscillator provides a constant frequency drive signal to the PWM. The PWN and power transistor together form a switch, which transfers energy stored in an inductor to the output capacitor in a very efficient way.

Conclusion

LT1073CS8-5#PBF is a step-down DC/DC switching regulator, specially designed for low-voltage applications. It offers high performance, speeds transient response, low noise, and low dropout voltage. It is used in numerous products, such as 3G or 4G base stations, notebook computers, portable products, industrial robots, and high-end telecom products. Its working principle involves the use of a buck-boost topology, an internal oscillator, pulse-width modulator, PNP pass transistor and regulators.

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