32V converter saves board space, power and data

For systems requiring maximum uptime and soft power-fail behaviour to protect data integrity, the AS7620 DC/DC converter from austriamicrosystems features a low-power architecture and indicates power-good and anticipated power-failure conditions.

As the first step-down 32V converter to integrate these important status outputs, the AS7620 enables designers to save board space by eliminating the external comparators usually required.

The converter’s low-power architecture achieves a low current draw of 37µA when delivering 500µA of output current, or approximately 100µA at 10mA output. This allows smaller hold-up capacitors and extends battery life for portable devices. A pin-selectable peak-current limit also allows the use of small and low-cost inductors.

With a wide operating voltage range, from 3.6V to 32V, the AS7620 is optimised for 24V systems in medical and industrial applications. With 100% duty-cycle operation and low-dropout capability, this converter keeps systems running for longer until the supply voltage falls below its preset power-good threshold of 90%.

Further features to maximise the operating envelope of end-user equipment include 30µA idle current, on-demand switching to maximise efficiency at low operating currents, and a 1µA shutdown mode.

 

FEATURES 93% maximum efficiency Fixed or adjustable output voltage: 3.3V fixed 1.2V-VIN adjustable Dual power monitor 4mm x 4mm MLPQ 12-pin package

APPLICATIONS Sensor interfaces and diagnostics Portable test equipment Building control Electronic signage Industrial automation and robotics

 

 

 

 

Evaluation board AS7620 EB is available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

austriamicrosystems / AS7620