Buck converter delivers high efficiency over full load range

27th January 2016
Posted By : Nat Bowers
Buck converter delivers high efficiency over full load range

Designed for battery-powered applications such as mobiles and wearables, the AP3405 DC/DC buck converter has been introduced by Diodes Incorporated. Delivering high efficiency under light and heavy loads, the converter's fixed switching frequency of 2MHz reduces the size of external components while a small U-DFN2020-8 package saves board area.

The AP3405 current mode, PWM synchronous, step-down converter operates with a 2.3 to 5.5VIN range and supplies an output from 0.7 to 5.5V, accurate to ±1.5% up to 600mA. A low 32μA quiescent current draw helps extend battery life and internal MOSFETs with low RDS(ON) enable high efficiency under all load conditions.

Comprehensive protection features built into the AP3405 protect both the end system and the device itself. These include hiccup mode short-circuit protection, under-voltage lock-out, over-temperature protection and over-current protection.

The AP3405, in the U-DFN2020-8 package, is priced at $0.33 each in 1,000 unit quantities.


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

European Microwave Week 2019
29th September 2019
France Porte De Versailles Paris
HETT 2019
1st October 2019
United Kingdom EXCEL, London
World Summit AI 2019
9th October 2019
Netherlands Taets Park, Amsterdam
New Scientist Live 2019
10th October 2019
United Kingdom ExCeL, London
GIANT Health Event 2019
15th October 2019
United Kingdom Chelsea Football Club Stadium, London