LT3686IDD#TRPBF

Voltage - Output (Min/Fixed):	0.8V
Base Part Number:	LT3686
Supplier Device Package:	10-DFN (3x3)
Package / Case:	10-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	300kHz ~ 2.5MHz
Current - Output:	1.2A
Voltage - Output (Max):	37V
Series:	--
Voltage - Input (Max):	37V
Voltage - Input (Min):	3.6V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LT3686IDD#TRPBF is a high efficiency, monolithic, synchronous, step-down regulator intended for USB-powered applications. It is designed to deliver up to 2.5A of continuous current with excellent load and line regulation. The LT3686IDD#TRPBF provides many features like wide input voltage range, adjustable output voltage, and built-in protection circuitry.

Application Field

The LT3686IDD#TRPBF is suitable for many applications such as portable, handheld, and battery powered electronics. It is also used in many consumer applications including MP3 players, digital cameras, and cell phones. The wide input voltage range and adjustable output voltage make the LT3686IDD#TRPBF a suitable voltage regulator for many applications. Additionally, the device features synchronous operation and low quiescent current, making it the perfect choice for portable electronics that require long battery life.

Working Principle

The LT3686IDD#TRPBF is a synchronous step-down DC-DC regulator. It is designed to provide a constant regulated output voltage by switching on and off the output switch. The switching frequency is adjustable and can be set between 1kHz and 2.2MHz. The input voltage is compared with an internal reference voltage to control the output. The device will change the duty cycle of the output switch to maintain the desired output voltage. When the voltage of the input is higher than the reference voltage, the output voltage will be lower; and when the voltage of the input is lower than the reference voltage, the output voltage will be higher.The LT3686IDD#TRPBF includes many features that make it an ideal voltage regulator for many different applications. The device includes several protection registers to protect against overvoltage, undervoltage, overcurrent and short-circuit protection. The device is also designed for automatic power-down when the input voltage drops below a certain threshold.

Conclusion

The LT3686IDD#TRPBF is a high efficiency, synchronous, step-down DC-DC regulator for use in portable, handheld and battery powered applications. The wide input voltage range and adjustable output voltage make the LT3686IDD#TRPBF an ideal voltage regulator for many applications. The device also features several protection registers and automatic power-down. This makes it a suitable voltage regulator for many consumer applications such as MP3 players, digital cameras, and cell phones.

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