Product category: Power Supply ICs and Controllers
News Release from: Texas Instruments (April 2001-March 2006) | Subject: TPS40020 and TPS40021
Edited by the Electronicstalk Editorial Team on 19 March 2004
Controllers boost gate drive performance
Two new synchronous DC/DC buck controllers increase performance in nonisolated systems with input voltages from 2.25 to 5.5V and outputs up to 25A
TI's newest TPS40K devices achieve up to 92% power efficiency, save board space and simplify power design in industrial, telecomms, datacomms, wireless basestations and server applications. The TPS40020 and TPS40021 single-chip controllers minimise diode conduction losses associated with high-side and synchronous rectifier N-channel mosfet transitions.
This article was originally published on Electronicstalk on 19 March 2004 at 8.00am (UK)
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The devices combine TI's Predictive Gate Drive technology with an integrated charge pump to enable a regulated 5V gate drive for added performance.
The controllers also enhance operation with programmable power supply features such as soft start and high-side short-circuit protection.
The TPS40020 and TPS40021 provide a programmable fixed frequency up to 1MHz and output voltage transient comparators with power good indication to provide faster response time.
The new controllers are supported by TI's TPS40K Designer software, which includes advanced analysis tools that allow designers to conduct worst-case loop response analysis and component characterisation.
The TPS40K Designer software, a TPS40021 evaluation module, and application notes are available through the TI power website.
The TPS40020 and TPS40021 come in 16-pin, HTSSOP PowerPad packages, and are available now from TI and its authorised distributors.
Suggested resale pricing for each device is $1.15 each in quantities of 1000 units.
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