Path: EDN Asia >> Product Centre >> Power/Smart Energy >> Intersil delivers radiation-hardened POL regulator
Power/Smart Energy Share print

Intersil delivers radiation-hardened POL regulator

19 Mar 2014  | Susan Nordyk

Share this page with your friends

Optimising thermal management for aerospace and satellite applications, the ISL70003SEH point-of-load (POL) buck regulator from Intersil operates over an input range of 3V to 13.2V, while providing both radiation and single-event-effects (SEE) hardening. A synchronous rectification topology allows for seamless switching between the chip's integrated upper and lower switching MOSFETs, delivering peak efficiency of up to 95 per cent.

The device furnishes a tightly regulated output voltage that is externally adjustable from 0.6V to ~90 per cent of the input voltage. Continuous output load current is 6A at a junction temperature of +125°C and 3A for a junction temperature of +150°C. The regulator uses a voltage-mode control architecture with feed-forward and switches at a selectable frequency of 500kHz or 300kHz.

The ISL70003SEH achieves the ±5 per cent voltage accuracy required by FPGAs, ASICs, microprocessors and microcontrollers in space applications. It also provides ±1 per cent reference voltage variation over line, temperature and radiation.

In addition, the switching regulator's 14.7V absolute maximum rating in the heavy ion environment at a linear energy transfer of 86MeVcm2/mg provides an adequate derating margin for 12V applications, which improves system reliability.




Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.


Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
Control this smart glass with the blink of an eye
K-Glass 2 detects users' eye movements to point the cursor to recognise computer icons or objects in the Internet, and uses winks for commands. The researchers call this interface the "i-Mouse."

GlobalFoundries extends grants to Singapore students
ARM, Tencent Games team up to improve mobile gaming


News | Products | Design Features | Regional Roundup | Tech Impact