Embedded: Flyback dc/dc controller operates at 150°C

Linear Technology offers a current mode flyback dc/dc controller in a tiny 6-pin ThinSOT package.


Linear Technology Corp. announces the H-grade version of its LTC3803-3, a current mode flyback dc/dc controller in a tiny 6-pin ThinSOT package. This integrated circuit is guaranteed up to +150°C operating junction temperature, making it suitable for automotive and industrial applications subjected to high ambient temperatures. It can be powered from an input voltage ranging from 9V to 75V through a series resistor clamped with the device's internal shunt regulator.

Linear Technology

The constant 300kHz operating frequency is maintained down to very light loads, minimizing low frequency noise generation over a wide range of load current. With adjustable slope compensation, an LTC3803H-3 based power supply achieves fast transient response with minimum output capacitance. An integrated soft-start function reduces inrush current and output voltage overshoot.
A 100mV current sense threshold allows the use of a very small current sense resistor even at high power levels to maintain high efficiency.
Other Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, dc-dc converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and more.

- Edited by Renee Robbins, senior editor
Control Engineering News Desk

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
Mobile HMI; PID tuning tips; Mechatronics; Intelligent project management; Cybersecurity in Russia; Engineering education; Road to IANA
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me