Product category:
Power Supply ICs and Controllers
News Release from: ON Semiconductor | Subject: NCP1521 and NCP1522
Edited by the Electronicstalk Editorial
Team on 10 March 2006
Convertors are optimised for portable
applications
The NCP1521 and NCP1522 are 600mA DC/DC step-down convertors optimised for portable applications powered from one-cell Li-ion or three-cell alkaline/NiCd/NiMH batteries.
Available now from ON Semiconductor, the NCP1521 and NCP1522 are 600mA DC/DC step-down convertors optimised for portable applications powered from one-cell Li-ion or three-cell alkaline/NiCd/NiMH batteries The devices include integrated soft-start, cycle-by-cycle current limiting and thermal shutdown protection
This article was originally published on Electronicstalk on 31 Mar 2003 at 8.00am (UK)
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Low jitter for drop-in PLL synthesiser replacement
The NBC12429FN is a 3.3/5.0V programmable PLL clock synthesiser that provides a 25 to 400MHz system clock ideal for the primary timing signals in networking, telecomms and test hardware.
Automatic switching between PWM and PFM modes provides improved system efficiency.
NCP1521 switches at 1.5MHz and delivers up to 96% efficiency.
The NCP1522 switches at 3.0MHz, and delivers up to 93% efficiency.
These high frequencies allow use of lower value inductors and output capacitors, which results in a physically smaller subsystem solution.
Both devices are currently in production, and expand ON Semiconductor's extensive DC/DC switching convertor portfolio.
They are offered in space-efficient 3 x 3mm TSOP-5 packages.
NCP1521 is priced at $0.60 per unit in 3000-unit quantities.
NCP1522 is priced at $0.65 per unit in 3000-unit quantities.
Samples may be ordered from the ON Semiconductor website.
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