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


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


Power Management; RF Communications; Communications & Networking; Medical
Back to top

Product Specifications, Documents & More

  • DC / DC Converter IC Case: TSSOP
  • Input Voltage Max: 17.5V
  • Input Voltage Min: 2.8V
  • MSL: MSL 1 - Unlimited
  • No. of Outputs: 1
  • No. of Pins: 16
  • Operating Temperature Max: 125°C
  • Operating Temperature Min: -40°C
  • Output Current: 1A
  • Output Voltage: 35V
  • Output Voltage Nom.: -
  • Packaging: Cut Tape
  • SVHC: No SVHC (15-Jun-2015)
  • Switching Frequency: 250kHz
  • Topology: Push-Pull

Find similar products  grouped by common attribute

View this product in our online catalog

This product also features on the following pages and catalog editions:

  •  131/216
  •  132/213


Availability:  141

  • 141 in stock for same day shipping
Check stock and lead times
    More stock available week commencing 3/14/16

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $7.01 $7.01



Quantity List Price
1 - 24 $7.01
25 - 99 $4.78
100+ $4.12

Legislation and Environmental

Back to top

Similar Products

Find products functionally similar to this one. Select one of the following links, and you will be taken to a product group page that presents all products in this category that share the given attribute.

Back to top

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.
Back to top


  Newark Part No. Manufacturer Part No Manufacturer / Description
Availability Price Qty
ascdsc ascdsc ascdsc ascdsc ascdsc



IC,Transformer Driver,TSSOP,16PIN,PLASTIC


Price for: Full Reel 1

2500+ $5.20

    More stock available week commencing 3/28/16

Not Normally Stocked

Non-Cancelable / Non Returnable

Associated Products

Customers Also Bought