LTC3646IDE-1#TRPBF

Voltage - Output (Min/Fixed):	0.6V
Base Part Number:	LTC3646
Supplier Device Package:	14-DFN (4x3)
Package / Case:	14-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	200kHz ~ 3MHz
Current - Output:	1A
Voltage - Output (Max):	15V
Series:	--
Voltage - Input (Max):	40V
Voltage - Input (Min):	4V
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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The LTC3646IDE-1#TRPBF is a high efficiency, wide input voltage range, synchronous buck switching regulator designed for USB powered applications and other low voltage, power saving applications. It has a wide input voltage range of 4.75V to 28V, making it ideal for USB powered applications. It also features a wide output voltage range of 0.5V to 20V, allowing for precise control with minimal external components. The LTC3646IDE-1#TRPBF includes features such as adjustable soft-start, adjustable output voltage, over current protection, short circuit protection and thermal shutdown. Additionally, it has an internal voltage reference and includes an enable input to put the regulator into a low current state when not in use.The LTC3646IDE-1#TRPBF utilizes a hysteretic synchronous buck for higher efficiency over the entire input/output voltage range than traditional linear regulators. By using a hysteretic synchronous buck, the LTC3646IDE-1#TRPBF will regulate the output voltage more accurately and efficiently than linear regulators. In addition, the LTC3646IDE-1#TRPBF will maintain the correct output voltage regardless of the load current, ensuring that the device operates in an efficient manner.The LTC3646IDE-1#TRPBF is ideal for low voltage, power saving applications such as microprocessors, cell phones, digital cameras, and other portable devices. Its wide input voltage range and adjustable output voltage make it ideal for applications in which the input power is unstable or variable and must be adjusted quickly to remain within the operational range. Additionally, its low quiescent current and high efficiency result in a reduced power consumption and improved battery life.The LTC3646IDE-1#TRPBF operates at a switching frequency of 2.2MHz, allowing for a small package size and high efficiency. The switching frequency can also be adjusted, allowing for different operating frequencies to be programmed into the device. The LTC3646IDE-1#TRPBF uses a peak current mode control to regulate the output voltage. In this system, an internal feedback network determines the duty cycle of the switches, based on the current level being drawn from the output. This will ensure that the correct amount of current is delivered to the load and that the output voltage remains regulated, even under changing load conditions.In addition, the LTC3646IDE-1#TRPBF includes features such as adjustable soft-start, which will limit inrush currents into the output capacitors when the device is first turned on, as well as over current protection and thermal shutdown to protect the device from excessive current or temperature levels. Additionally, the device includes an enable input, which when pulled low, puts the device into a low-current sleep state.Overall, the LTC3646IDE-1#TRPBF is an ideal DC/DC switching regulator solution for USB powered applications and other low voltage, power saving applications. Its wide input voltage range, adjustable output voltage, low quiescent current and high efficiency make it the perfect choice for applications in which the input power is unstable or variable and must be adjusted quickly and accurately. With its robust feature set and low power consumption, the LTC3646IDE-1#TRPBF is an ideal choice for your power saving application.

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