LT3089IR#TRPBF

Current - Output:	800mA
Base Part Number:	LT3089
Supplier Device Package:	7-DDPAK
Package / Case:	TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Short Circuit
Control Features:	Current Limit
PSRR:	90dB ~ 20dB (120Hz ~ 1MHz)
Current - Supply (Max):	3mA
Current - Quiescent (Iq):	50.5µA
Series:	--
Voltage Dropout (Max):	1.65V @ 800mA
Voltage - Output (Max):	34.5V
Voltage - Output (Min/Fixed):	0V
Voltage - Input (Max):	36V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LT3089IR#TRPBF is a low dropout (LDO) regulator designed by Linear Technology. It is designed to satisfy the need of high-power applications and can support up to 3A conversions. It has an operating input voltage range of 4.5V to 40V, and output voltage range of 2.5V to 36V. The high power conversion level of this device makes it a popular regulator choice for many applications, including automotive, digital and industrial, as well as telecommunications and data processing.

Application Field and Working Principle

The LT3089IR#TRPBF is an ideal solution for applications that require a high-power, step down, voltage regulator. It is especially suitable for high-current, battery-powered applications, such as automotive and industrial applications, as well as applications requiring high precision regulation.The LT3089IR#TRPBF operates on the principle of low dropout regulation. This is a circuit topology in which a power transistor is connected in series between the input voltage and the output voltage. The base voltage of the transistor is controlled by a feedback circuit such that the difference between the input and output voltages remains constant, no matter how much current is drawn from the output. This ensures a regulated output, regardless of the load or input voltage.The main feature of the LT3089IR#TRPBF is its high current capability. It is designed to allow up to 3A of continuous current, which is well beyond the capability of other similar solutions. It also has an integrated over current protection (OCP) circuit to prevent over-current damage.Other features of the LT3089IR#TRPBF include high power efficiency, low noise, and low voltage dropout. The device also has an adjustable output voltage, allowing for more precise regulation.

Conclusion

The LT3089IR#TRPBF is a high-power, low dropout, voltage regulator from Linear Technology. It is designed for applications requiring high current, such as automotive and industrial, as well as telecommunications. Its features include high power efficiency, low noise, adjustable output voltage, and over current protection. This makes it an ideal solution for a variety of applications.

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