LTC3646IMSE#PBF

Voltage - Output (Min/Fixed):	2V
Base Part Number:	LTC3646
Supplier Device Package:	16-MSOP-EP
Package / Case:	16-TFSOP (0.118", 3.00mm Width) 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):	30V
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:	Tube

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The LTC3646IMSE#PBF is a high performance synchronous step-down switching regulator specifically designed for portable applications where high efficiency, low quiescent current operation and small size are critical. It offers an adjustable output voltage from 0.8V to 5V and features a relatively low operating current of 3.2mA (typical) with low dropout voltages under 1.5V. The LTC3646IMSE#PBF is a PMIC (power management integrated circuit) voltage regulator that is part of the DC-to-DC switching regulator family. A switching regulator is an electronic circuit that converts aDC voltage from one level to another, usually with a greater degree of efficiency than a linear regulator. The switching regulator LTC3646IMSE#PBF works by rapidly switching a power MOSFET on and off to transfer energy from the input voltage to the output voltage.The device utilizes 6-bit digital control to adjust the output voltage. It can be controlled via an I2C bus interface, which provides the programmable output voltage selection feature. The LTC3646IMSE#PBF also has a built in power-limit circuitry which helps it achieve low quiescent current operation. This power-limit feature allows the convenient monitoring of the device’s thermal performance.The LTC3646IMSE#PBF is ideal for portable and battery powered applications, such as handheld electronics and embedded systems. It features low ripple, high switching frequency and a wide operating temperature range from -40°C to +125°C. It can support load currents up to 3A and has input voltage ranges from 3V to 17V. It has excellent thermal performance and is very efficient, with a switching efficiency of up to 95%. It is important to note that there are also some drawbacks to using this device. The LTC3646IMSE#PBF requires a specific set-up and layout in order to optimize its performance. The proper design and layout of an inductor and capacitor are essential for the proper functioning of the regulator. Also, due to its low operating current, it is not suitable for high-current applications. In conclusion, the LTC3646IMSE#PBF is a high performance, low quiescent current, synchronous step-down switching regulator specifically designed for portable applications requiring small size and high efficiency. It features an adjustable output voltage from 0.8V to 5V, 6-bit digital control to adjust the output voltage, built in power-limit circuitry allowing for convenient monitoring of thermal performance and impressive thermal performance with efficient up to 95%.

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