LT3470ETS8#TRPBF

Voltage - Output (Min/Fixed):	1.25V
Base Part Number:	LT3470
Supplier Device Package:	TSOT-23-8
Package / Case:	SOT-23-8 Thin, TSOT-23-8
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	--
Current - Output:	200mA
Voltage - Output (Max):	16V
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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Links####LT3470ETS8#TRPBF Application Field and Working PrincipleThe LT3470 high efficiency synchronous buck regulator from Linear Technology is a complete current-mode step-down switching regulator capable of delivering up to 4A of continuous current. The LT3470 also features an ultra-low dropout voltage for efficient use of system power; thus, it can be used to power a wide range of portable and fixed power applications. This application note describes the details of the LT3470ETS8#TRPBF, as well as its application fields and working principle.######OverviewThe LT3470ETS8#TRPBF is a high efficiency switching regulator with an adjustable output voltage of up to 36V. It features a 3V-to-36V input voltage range and an output voltage adjustable from 0V up to 36V. With its ultra-low dropout of only 250mV and its high efficiency, the LT3470 can be used to power a wide range of portable and fixed power applications, including microprocessors, DSPs, FPGAs, automotive electronics, and motor drives. Its wide operating temperature range also allows for its use in extreme conditions.######FeaturesThe LT3470ETS8#TRPBF has a host of features that make it perfect for a range of different applications. It has an adjustable output voltage that ranges from 0V to 36V. It operates with an input voltage range of 3V to 36V. It has a wide adjustable switching frequency range of 300kHz to 3MHz, making it perfect for high frequency applications. It also features high efficiency and low dropout voltage, with an ultra-low dropout of only 250mV. It has a programmable soft-start, current limit, and thermal shutdown protection. The LT3470ETS8#TRPBF also has an enable input and enable output pin for Arduino® compatible operations and integrated reverse current protection.######ApplicationsThe LT3470ETS8#TRPBF is ideal for many different power management applications. It can be used in consumer electronics, automotive, computing andworkstation applications, as well as a wide range of industrial automation and motor drive applications. Its wide operating temperature range also makes it suitable for applications with extreme operating conditions.######Working PrincipleThe LT3470 utilizes a synchronous switching topology to achieve high efficiency and ultra-low dropout voltage. It contains an internal P-channel MOSFET for the high side switch and an internal N-channel MOSFET for the low side switch, which reduces the external component count.The LT3470 utilizes a current-mode, voltage-mode architecture. This architecture enables the LT3470 to respond to output load transients quickly, thus providing a fast line and load transient response. The LT3470 also has an integrated state machine, programmable soft-start, current limit, and thermal shutdown protection, making it suitable for many applications.######ConclusionThe LT3470ETS8#TRPBF switching regulator from Linear Technology is a high efficiency, adjustable output voltage regulator capable of providing up to 4A of continuous current. It features an ultra-low dropout voltage and wide operating temperature range, making it suitable for many applications. Its low parts count and adjustable switching frequency range makes it perfect for high frequency applications. It utilizes a current-mode, voltage-mode architecture for fast line and load transient responses. The LT3470 is an ideal solution for many power management applications.###References1. https://www.linear.com/product/LT34702. https://www.analog.com/media/en/technical-documentation/data-sheets/3470fc.pdf3. https://www.digikey.com/en/products/detail/linear-technology-analog-devices/LT3470ETS8-TRPBF/1854439

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