Low

LT3477EUF#PBF - 

DC-DC Switching Boost Step Up Regulator, Adjustable, 2.5V-25V in, 3A out, 4.3MHz, QFN-20

LINEAR TECHNOLOGY LT3477EUF#PBF

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Manufacturer Part No:
LT3477EUF#PBF
Order Code:
2294906
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT3477EUF#PBF is a 3A DC/DC Converter with dual rail-to-rail current sense amplifiers and an internal 3A, 42V switch. It combines a traditional voltage feedback loop and two unique current feedback loops to operate as a constant-current, constant-voltage source. Both current sense voltage is set at 100mV and can be adjusted independently using the IADJ1 and IADJ2 pins. Efficiency of up to 91% can be achieved in typical applications. The LT3477 features a programmable soft-start function to limit inductor current during start-up. Both inputs of the error amplifier is available externally allowing positive and negative output voltages (boost, inverting, SEPIC, Flyback). The switching frequency is programmable from 200kHz to 3.5MHz through an external resistor.
  • Programmable soft-start
  • Up to 93% high efficiency power conversion
  • Drives LEDs in boost, buck-boost or buck mode
  • Capable of positive and negative output voltages (boost, inverting, SEPIC, Flyback)
  • 200kHz to 3.5MHz Frequency set by external resistor
  • 0.3V at 2.5A Low VCESAT switch

Applications

Power Management, Communications & Networking, Industrial

Product Information

:
Boost (Step Up)
:
2.5V
:
25V
:
1Outputs
:
QFN
:
20Pins
:
3A
:
-
:
40V
:
4.3MHz
:
85°C
:
Cut Tape
:
-
:
-
:
MSL 1 - Unlimited
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