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33 pcs
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33 pcs | On Request | 1 | On Request | On Request | 08+ | On Request | On Request |
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The LT3477IUF is a current mode, 3A DC/DC step-up converter manufactured by Analog Devices Inc. It integrates dual rail-to-rail current sense amplifiers and an internal 3A, 42V switch, enabling it to function as a constant-current, constant-voltage source. This device supports a wide input voltage range from 2.5V to 25V and achieves high power conversion efficiency of up to 93%.
The LT3477IUF allows for programmable soft-start to manage inductor current during startup. Its switching frequency is adjustable from 200kHz to 3.5MHz via an external resistor. The converter is capable of producing both positive and negative output voltages, supporting configurations such as Boost, Inverting, SEPIC, and Flyback.
Available in thermally enhanced 20-lead QFN (4mm x 4mm) and 20-lead TSSOP packages, the LT3477IUF is suitable for various applications requiring precise voltage and current regulation. Its design incorporates dual 100mV rail-to-rail current sense amplifiers that can be independently adjusted.
Key features include a low VCESAT switch (0.3V at 2.5A) and the ability to drive LEDs in Boost, Buck-Boost, or Buck modes. This makes it a versatile solution for applications like high power LED drivers, DSL modems, and distributed power systems.
The input voltage range is 2.5V to 25V.
The internal switch has a maximum current rating of 3A.
The LT3477IUF can achieve up to 93% efficiency.
The switching frequency is programmable from 200kHz to 3.5MHz via an external resistor.
The LT3477IUF is available in a 20-lead (4mm x 4mm) QFN package and a 20-lead TSSOP package.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level is 1.