Product category:
Power Supply ICs and Controllers
News Release from: Vishay Siliconix | Subject: SiP21301
Edited by the Electronicstalk Editorial
Team on 04 January 2008
Controller has flexible approach to PSU
efficiency
The 80% efficiency of the SiP21301 helps to reduce energy consumption in end products while simplifying the design of DC/DC convertors.
Vishay Intertechnology has released an LDO controller with adjustable and fixed output voltage options that uses external N-channel MOSFETs to provide extremely low dropout voltages of under 50mV at very high currents, up to 7A, with 80% efficiency The SiP21301 device is optimised for driving N-channel MOSFETs to power FPGAs, ASICs and ASSPs in game consoles, set-top boxes, LCD televisions and networking equipment
This article was originally published on Electronicstalk on 17 Jun 2003 at 8.00am (UK)
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Because it works with an external N-channel MOSFET with a separate supply voltage, the SiP21301 allows designers to choose the FET with the on-resistance, dropout voltage, output current and power dissipation ratings that best suit their applications, operating from 2.5V down to 0.65V at up to 7A.
The 80% efficiency of the SiP21301 solution helps to reduce energy consumption in end products while simplifying the design of DC/DC convertors.
Designed to maintain regulation while delivering 7A peak current, the new SiP21301 is ideal for systems that have a high turn-on surge current and very low dropout voltage requirements.
The SiP21301 features programmable inrush current protection on startup, short-circuit protection, thermal shutdown, and undervoltage lockouts for safe operation of the IC and the external MOSFET.
The controller offers an adjustable output voltage, as well as fixed 1.2 and 1.5V output voltage options.
The device provides a low operating current, a low standby current, and a 1% output voltage accuracy.
The SiP21301 is available in the compact, lead (Pb)-free MSOP8 package and operates over a -40 to +125C junction temperature range.
Pricing for US delivery in 1000-piece quantities is $0.34 per piece.
Samples and production quantities of the new SiP21301 LDO controller are available now, with lead times of 8 to 12 weeks for initial orders.
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