Low

LINEAR TECHNOLOGY  LT3439EFE#PBF  Push-Pull Switching Regulator, Fixed, 2.8V-17.5V In, 1A Out, 250 kHz, TSSOP-16

LINEAR TECHNOLOGY LT3439EFE#PBF
Manufacturer Part No:
LT3439EFE#PBF
Order Code:
1273815
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LT3439EFE#PBF is a Slew Rate Controlled Ultralow Noise 1A Isolated DC/DC Transformer Driver reduces conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by controlling the output switch voltage and current slew rates. Slew rates are user adjustable to optimize output noise versus efficiency. The LT3439 can reduce high frequency harmonic content by as much as 40dB with only a minor decrease in efficiency. The LT3439 includes two 1A current limited power switches to ensure start-up under heavy loads. It also includes an oscillator that can be synchronized to an external clock for more accurate placement of switcher harmonics. Protection features include current limiting, under-voltage lockout, thermal shutdown and cross conduction prevention circuitry.
  • Reduced conducted and radiated EMI
  • Single resistor control of output switch voltage and current slew rates
  • Cross conduction prevention circuitry
  • Two 1A current limited power switches
  • Low minimum supply voltage (2.8V)
  • Low shutdown current (<20µA)
  • 50% Duty cycle
  • 20 to 250kHz Oscillator frequency
  • Synchronizable to 300kHz
  • Over-current and over-temperature protected

Product Information

Topology:
Push-Pull
Input Voltage Min:
2.8V
Input Voltage Max:
17.5V
DC / DC Converter IC Case:
TSSOP
No. of Pins:
16Pins
Output Current:
1A
Output Voltage Nom.:
-
Switching Frequency:
250kHz
Operating Temperature Max:
125°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
  • RF Communications
  • Communications & Networking
  • Medical

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):
.000104

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