LT1072IN8#PBF

Voltage - Output (Min/Fixed):	1.25V
Base Part Number:	LT1072
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	40kHz
Current - Output:	1.25A (Switch)
Voltage - Output (Max):	65V (Switch)
Series:	--
Voltage - Input (Max):	40V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck, Boost, Cuk, Flyback, Forward Converter
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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LT1072IN8#PBF application field and working principle

Introduction

The LT1072IN8#PBF is a low-dropout monolithic positive voltage regulator. It is housed in the industry standard 8-lead plastic DIP package and is rated for up to 2 amps of continuous output current. It offers an excellent line and load regulation, low noise, and fast transient response which makes it highly suitable for a variety of applications. This device belongs to the category of DC DC Switching Regulators, which are used to convert power from one voltage level to another.

Application Fields

The LT1072IN8#PBF is a versatile, low cost voltage regulator which can be used in a wide range of applications, such as in portable equipment, regulated power supplies, and general power supply designs. It can be used as an adjustable voltage regulator, an alternate current source, and an auxiliary supply for voltage sensors and controls.

Cellular phones:

In cellular phones, the LT1072IN8#PBF is used to generate the power supply for the digital processor. Its low noise output and high accuracy makes it ideal for use in cellular phones, due to its low power consumption, compact size, and fast transient response.

Car electronics:

The LT1072IN8#PBF is used to provide a stable supply voltage in car audio and electronic systems. Its low dropout voltage and high temperature range ensures it can reliably supply power to such systems.

Robotics:

Robots need a reliable, low- noise power supply to ensure smooth, precise operation. The LT1072IN8#PBF is capable of providing a steady voltage output with fast transient response and low dropout voltage. This makes it an ideal choice for use in robotic systems.

Medical equipment:

Medical equipment often requires precise, low-noise power supplies in order to provide accurate and reliable readings. The LT1072IN8#PBF is ideal for this purpose, due to its fast transient response, low dropout voltage and wide temperature range.

Working principle

The LT1072IN8#PBF is a low-dropout (LDO) switching regulator with adjustable output voltage. It uses a PMOS pass transistor as the power device and an internal process resistor to regulate the output voltage. The internal control circuitry acts as a voltage regulator, which senses the output voltage level and adjusts the duty cycle of the PMOS pass transistor accordingly, in order to maintain a constant output voltage.The PMOS pass transistor draws current from the input voltage source, which is then passed to the output via an inductor. The duty cycle of the PMOS pass transistor is controlled by the LT1072IN8#PBF\'s internal control circuitry, and is adjusted in order to maintain a constant output voltage. The voltage output of the LT1072IN8#PBF can be adjusted by changing the values of the feedback resistors. The input voltage is also adjustable, allowing the device to be used over a wide range of input voltage levels, without the need for external components.

Conclusion

The LT1072IN8#PBF is a versatile, low-cost voltage regulator with excellent line and load regulation, fast transient response, and low noise output. It is ideal for use in a wide range of applications, including cellular phones, car audio and electronic systems, robotics, and medical equipment. The LT1072IN8#PBF uses a PMOS pass transistor and an internal process resistor to regulate the output voltage, and the voltage output can be adjusted by changing the values of the feedback resistors.

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