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LINEAR TECHNOLOGY  LT3477EUF#PBF  DC-DC Switching Boost Step Up Regulator, Adjustable, 2.5V-25V in, 3A out, 4.3MHz, QFN-20

LINEAR TECHNOLOGY LT3477EUF#PBF
Manufacturer Part No:
LT3477EUF#PBF
Order Code:
2294906
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

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

Product Information

Topology:
Boost (Step Up)
Input Voltage Min:
2.5V
Input Voltage Max:
25V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
QFN
No. of Pins:
20Pins
Output Current:
3A
Output Voltage Min:
-
Output Voltage Max:
40V
Switching Frequency:
4.3MHz
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Power Management
  • Communications & Networking
  • Industrial

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000079

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