Product category:
Power Supply ICs and Controllers
News Release from: Intersil | Subject: ISL8009
Edited by the Electronicstalk Editorial
Team on 11 September 2007
Efficient claims for compact regulator
Synchronous buck integrated FET regulator maintains up to 95% efficiency in both full load and light load conditions.
Intersil reckons its latest high-efficiency 1.5A synchronous buck integrated FET regulator is ideal for point-of-load regulation for datacomms/telecomms, battery powered systems, medical instrumentation and many industrial applications The ISL8009 is designed to use a special multimode-operation capability, allowing selection between forced PWM mode and automatic PWM/PFM mode
This article was originally published on Electronicstalk on 11 Apr 2008 at 8.00am (UK)
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Synchronous buck regulator extends battery life
The ISL8009A's highly efficient power conversion under light load conditions extends battery life in portable and handheld applications.
This ability to switch between modes enables the regulator to maintain up to 95% efficiency in both full load and light load conditions.
Additionally, when the device is in PFM mode, the quiescent current drops to 17uA and makes the ISL8009 ideal for battery powered applications.
The ISL8009 includes features such as a high 1.6kHz switching frequency, allowing the use of smaller external components.
The device also has internal current mode compensation to eliminate the need for external components while contributing to fast transient response in over current conditions.
Other important features of the ISL8009 include power-on reset and enable to provide output voltage monitoring and power sequencing capabilities, further eliminating the need for additional discrete ICs.
Available now in a small 2 x 3mm 8-lead DFN package, the ISL8009 offers customers a high-efficiency solution in a tiny footprint that occupies less than 1cm2 in area.
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