DC/DC converter for inverting power supply apps

A Linear Technology product story
More from this company More from this category
Edited by the Electronicstalk editorial team Dec 7, 2010

Linear Technology has announced the LT3957, a DC/DC converter for boost, flyback, SEPIC and inverting power supply applications.

This device operates over an input voltage range of 3 to 40V, has an onboard 5A/40V power switch and achieves efficiencies up to 96 per cent, making it suited for industrial, automotive, medical and telecom applications.

Linear Technology has announced the LT3957, a DC/DC converter for boost, flyback, SEPIC and inverting power-supply applications

Linear Technology has announced the LT3957, a DC/DC converter for boost, flyback, SEPIC and inverting power-supply applications

The LT3957 can generate either a positive or negative regulated output voltage with its two internal voltage feedback error amplifiers and reference voltages.

One set is for positive output voltages and the other is for negative output voltages, both off a single feedback pin.

With a programmable fixed or synchronisable operating frequency from 100kHz to 1MHz, designers can choose a range of inductors and capacitors to optimise size, performance and cost.

Its current-mode control results in stable operation over a range of supply and output voltages.

The device supports designs using only ceramic capacitors, enabling a smaller solution size.

Additional features include programmable soft start, adjustable input undervoltage lockout, and output overvoltage and overcurrent protection.

The LT3957 operates from a -40 to 125C temperature range and is offered in a 5 x 6mm QFN-36 package with additional pin spacing to support high-voltage operation.

Find out more about this article. Request a brochure, download technical specifications and request samples here.
Send to a friendSend to a friend

Not what you're looking for? Search the site.

Back to top Back to top

MyTalk

Add to My Alerts

Company Linear Technology


Category DC/DC convertors

Contact Linear Technology

Contact Linear Technology

Tel+44 1628 477066

Other Linear Technology stories

Contact Linear Technology
  • Linear introduces H-grade switching regulator
    Linear Technology has announced a H-grade step-down switching regulator for load dump and cold-crank conditions commonly found in automotive applications as well as 24V industrial supplies.
  • Compact linear regulator with thermal resistance
    Linear Technology has produced a wider-temperature-range version of the LT3010, a high-voltage, micropower linear regulator for avionics, military, industrial, automotive, RF and telecom applications.
  • Voltage controller with integrated power MOSFET
    Linear Technology has introduced the LTC4219 5A Hot Swap controller with sense resistor, for protecting low-power boards from inrush current in many RAID, server, telecom and industrial applications.
  • Current mode controllers for military applications
    Military-temperature-grade versions of the LTC3803/-3/-5 current mode flyback controllers are available in a six-pin ThinSOT package for industrial, telecom, military and automotive applications.
  • DC/DC uModule PoL regulator for RAID systems
    The LTM4611, a complete switch mode DC/DC uModule point-of-load regulator, is suited for applications in systems with only 3.3, 2.8 or 2.5V as the main power rail.
Newsletter sign up

Request your free weekly copy of the Electronicstalk email newsletter ...

A Pro-talk Publication

A Pro-talk publication