LT3694EUFD#TRPBF

Voltage/Current - Output 3:	Controller
Base Part Number:	LT3694
Supplier Device Package:	28-QFN (4x5)
Package / Case:	28-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	4 V ~ 36 V
w/Sequencer:	Yes
w/Supervisor:	No
w/LED Driver:	No
Series:	--
Voltage/Current - Output 2:	Controller
Voltage/Current - Output 1:	0.75 V ~ 16 V, 2.6A
Frequency - Switching:	250kHz ~ 2.5MHz
Number of Outputs:	3
Function:	Any Function
Topology:	Step-Down (Buck) (1), Linear (LDO) (2)
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LT3694EUFD#TRPBF Application Field and Working Principle

Introduction

The LT3694EUFD#TRPBF integrated circuit from Analog Devices Inc (ADI) is one of the company\'s linear and switching voltage regulators. This voltage regulator is specifically designed for driving large capacitive loads, high power white and RGB LEDs and for Li-Ion battery applications, making it an ideal choice for a variety of electronic and design applications. This IC boasts a user configurable current limit, an adjustable over-temperature shutdown, a maximum 1.6A output current, and an advanced system synchronization technique which allows the output to track an external reference.

Application Field

The LT3694EUFD#TRPBF voltage regulator can be used in a variety of different applications, including automotive, consumer, computing, industrial, and communication applications. For example, this IC can be used as a step-down LED driver in consumer and automotive LED lighting applications. It can also be used as a configurable battery charger in Li-Ion and Li-Polymer battery applications. In addition, the LT3694EUFD#TRPBF voltage regulator is widely used in computing applications and can be used to power digital cores, FPGAs and microcontrollers, and in communication applications where it can power optical transceivers.

Working Principle

The LT3694EUFD#TRPBF voltage regulator works by using an internally generated error voltage as a reference. This error voltage provides the appropriate voltage to allow the regulator to maintain its output voltage in spite of load variation. This is because the error voltage is compared to the output voltage and the error voltage is used to adjust the internal power transistor of the IC in order to maintain its output voltage. The LT3694EUFD#TRPBF also has a user configurable current limit and an adjustable over-temperature shutdown. This allows the user to protect the IC and its application from over-current, over-voltage, and over-temperature conditions. Additionally, the LT3694EUFD#TRPBF contains an advanced system synchronization technique which allows the output to track an external reference. This allows the voltage regulator to be used in applications where an external reference is necessary.

Conclusion

The LT3694EUFD#TRPBF voltage regulator from ADI is an ideal choice for driving large capacitive loads, high power white and RGB LED lighting applications, and Li-Ion battery applications. This IC boasts a user configurable current limit, an adjustable over-temperature shutdown, a maximum 1.6A output current, and an advanced system synchronization technique which allows the output to track an external reference. With its wide range of applications and its remarkable performance, the LT3694EUFD#TRPBF voltage regulator is an excellent choice for a variety of different applications.

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