LT3089ER#PBF

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:	Tube

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LT3089ER#PBF Application Field and Working Principle

LT3089ER#PBF is a current-mode, constant frequency High-Efficiency PFMF (100-30kHz) and Phase-Shifted PWMF (100-500kHz) 2-channel synchronous switching regulator. It\'s ideal for powering high speed processors and FPGAs. There are two wide input voltage range options. It is also capable of operating from either 3.3V or 5V inputs, allowing for a much wider selection of input voltage range.The LT3089ER#PBF makes use of a current-mode pulse width-modulating (PWMs) architecture. This type of architecture is used to regulate voltage and current by monitoring and controlling the pulse width of an input signal. This is done by detecting the changes in the electric current flowing through an inductive element such as a coil. It is then used to control the on-time (the amount of time the signal is allowed to remain on) and the off-time (the amount of time the signal is turned off). As a result, the output voltage and current can be regulated for the desired results.One of the major benefits of the LT3089ER#PBF is that it has a very accurate current sensing stage. This enables precise current control and precise output voltage regulation. This makes the regulator ideal for use in critical applications where small changes in voltage or current need to be maintained. The device also features a low profile (it comes in a 0.75mm height) and utilizes a soft-start capability to eliminate excessive inrush current and prevent possible damage to the system.The LT3089ER#PBF is also highly efficient and consumes much less power than other input regulators available. Its internal switch FETs is rated at a maximum of 4.5A which allows for a greater system efficiency. The device also includes a low quiescent current mode that enables operation down to 0.8V, saving even more power.In addition, the regulator comes in three different configurations, which are single-channel, dual-channel and triple-channel. The single-channel version is used when only one output voltage is required, the dual-channel is for two specified output voltages and the triple-channel is for three specified output voltages. This makes the LT3089ER#PBF a very versatile device, suitable for any application.Overall, the LT3089ER#PBF is a highly efficient and accurate voltage regulator that is suitable for any applications from low to high power requirements. It features a low profile, soft-start capability, current-mode control and multiple output options, offering a great choice for most regulating needs.

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