Input buck regulators offer up to 98% efficiency

Posted By : Mick Elliott
Input buck regulators offer up to 98% efficiency

The SiC46X from Vishay is a family of wide input voltage high efficiency synchronous buck regulators with integrated high side and low side power MOSFETs now available from Rutronik UK. Its power stage is capable of supplying high continuous current at 2MHz switching frequency optimised to achieve up to 98% efficiency.

The regulators produce an adjustable output voltage down to 0.8V from 4.5V to 60V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom and industrial.

Within the regular operating temperature range of -40°C to +125°C, they grant an output voltage accuracy of +/-1%.

SiC46X’s architecture delivers ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load. The devices are stable with any capacitor and no external ESR network is required for loop stability.

They also incorporate a power saving scheme that significantly increases light load efficiency. 

The regulators integrate a full protection feature set, including over current protection (OCP), output overvoltage protection (OVP), short circuit protection (SCP), output undervoltage protection (UVP) and thermal shutdown (OTP). It also has UVLO for input rail and a user programmable soft start. 

Developers can choose from three modes of operation: forced continuous conduction, power save or ultrasonic.

With an adjustable switching frequency from 100kHz to 2 MHz and an adjustable current limit, the SiC46X family is highly configurable.

The SiC46X family is available from Rutronik UK in 2A, 4A, 6A, 10A pin compatible 5mm by 5mm lead (Pb)-free power enhanced MLP55-27L package.

To support the design process, Vishay offers the PowerCAD online design simulation.

Downloads


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

Girls in Tech | Catalyst | 2019
4th September 2019
United Kingdom The Brewery, London
DSEI 2019
10th September 2019
United Kingdom EXCEL, London
EMO Hannover 2019
16th September 2019
Germany Hannover
Women in Tech Festival 2019
17th September 2019
United Kingdom The Brewery, London
European Microwave Week 2019
29th September 2019
France Porte De Versailles Paris